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Sherwin-Williams Joint Sealants - Polyurethane
 
         
SECTION 07 92 00
 
         
JOINT SEALANTS - POLYURETHANE
 
         
 
         
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          ** NOTE TO SPECIFIER ** Sherwin-Williams; paints, coatings, and sealants.
This section is based on the products of Sherwin-Williams, which is located at:
101 Prospect Ave.
Cleveland, OH 44115
Toll Free Tel: 800-4-SHERWIN (474-3794
Tel: 216-566-2000
Fax: 216-566-1392
Email: request info
Web: http://www.sherwin-williams.com/pro/services/architects_designers | http://www.generalpolymers.com
[ Click Here ] for additional information.
About Sherwin-Williams.
Sherwin Williams has been at the forefront of paint industry innovation and color leadership since 1866. We offer technologically advanced, high-performance coatings for residential and commercial applications. we deliver excellence, dependability and integrity through premium-quality products, state-of-the-art tools and personalized service.
Unparalleled Service.
From specifying for sustainability to dealing with challenging substrates. our designer and architectural account executives can assist you to find products that match your performance requirements, budget and deadline. They can assist you with resources on LEED and other sustainable programs and guidelines. Also. they can help you find the right coating, review project submittals. introduce new products, and support you with professional resources and training.
Solutions to make specification easy.
From floors to walls to trim to ceilings. structural steel to masonry to architectural woodwork. Sherwin- Williams has the most innovative products for every commercial or industrial application and substrate. By using the latest technologies, we're able to offer better choices, more options and never-before possibilities- We help you:
Meet today's specification Challenges.
Maximize performance.
Control costs.
Meet VOC regulations.
Improve application efficiencies.
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When you specify Sherwin-Williams your designs ate powered by our exclusive technology for
ensuring exceptional color accuracy and consistency in every gallon of paint. Precision is
possible thanks to Sherwin-Williams integrated product design, quality manufacturing. nationwide
distribution and technical expertise. We manufacture our own base products and colorants,
ensuring rigorous quality control and performance.
 
          PART 1GENERAL
 
          1.1SECTION INCLUDES
          ** NOTE TO SPECIFIER ** Delete items below not required for project.
 
          A.Polyurethane sealants. (LOXON S1) (LOXON H1) (LOXON TX) (LOXON SL1) (LOXON NS2) (LOXON SL2)
 
          B.Primers for polyurethane sealants. (LOXON Porous Surfaces Primer) (LOXON Quick Dry Primer)
 
          1.2RELATED SECTIONS
          ** NOTE TO SPECIFIER ** Delete any sections below not relevant to this project; add others as required.
 
          A.Section 03 30 00 - Cast-in-Place Concrete.
 
          B.Section 03 41 16 - Precast Concrete Slabs.
 
          C.Section 03 47 13 - Tilt-Up Concrete.
 
          D.Section 04 20 00 - Unit Masonry.
 
          E.Section 07 24 00 - Exterior Insulation and Finish Systems.
 
          F.Section 08 50 00 - Windows.
 
          G.Section 09 21 16.33 - Gypsum Board Area Separation Wall Assemblies.
 
          1.3REFERENCES
          ** NOTE TO SPECIFIER ** Delete references from the list below that are not actually required by the text of the edited section.
 
          A.U.S. General Services Administration (GSA):
          1.TT-S-00227E - Sealing Compound: Elastomeric Type, Multi-Component (For Caulking, Sealing, and Glazing in Buildings and Other Structures).
          2.TT-S-00230C - Sealing Compound: Elastomeric Type, Multi-Component (For Caulking, Sealing, and Glazing in Buildings and Other Structures).
          3.TT-S-001543A - Sealing Compound: Silicone rubber Base (For Caulking, Sealing, and Glazing in Buildings and Other Structures).
 
          B.Canadian General Standards Board (CAN.CGSB):
          1.CAN/CGSB-19.13-M87 - Sealing Compound, One Component, Elastomeric, Chemical Curing.
 
          C.ASTM International (ASTM):
          1.ASTM C510 - Standard Test Method for Staining and Color Change of Single- or Multicomponent Joint Sealants.
          2.ASTM C639 - Standard Test Method for Rheological (Flow) Properties of Elastomeric Sealants.
          3.ASTM C661 - Standard Test Method for Indentation Hardness of Elastomeric-Type Sealants by Means of a Durometer.
          4.ASTM C679 - Standard Test Method for Tack-Free Time of Elastomeric Sealants.
          5.ASTM C719 - Standard Test Method for Adhesion and Cohesion of Elastomeric Joint Sealants Under Cyclic Movement (Hockman Cycle).
          6.ASTM C793 - Standard Test Method for Effects of Laboratory Accelerated Weathering on Elastomeric Joint Sealants.
          7.ASTM C794 - Standard Test Method for Adhesion-in-Peel of Elastomeric Joint Sealants.
          8.ASTM C920 - Standard Specification for Elastomeric Joint Sealants.
          9.ASTM C1382 - Standard Test Method for Determining Tensile Adhesion Properties of Sealants When Used in Exterior Insulation and Finish Systems (EIFS) Joints.
          10.ASTM D412 - Standard Test Methods for Vulcanized Rubber and Thermoplastic Elastomers - Tension.
          11.ASTM D2240 - Standard Test Method for Rubber Property - Durometer Hardness.
 
          1.4SUBMITTALS
 
          A.Submit under provisions of Section 01 30 00 - Administrative Requirements.
 
          B.Product Data:
          1.Manufacturer's data sheets on each product to be used.
          2.Preparation instructions and recommendations.
          3.Storage and handling requirements and recommendations.
          4.Typical installation methods.
          ** NOTE TO SPECIFIER ** Delete if not applicable to product type.
 
          C.Verification Samples: Two representative units of each type, size, pattern and color.
 
          D.Shop Drawings: Include details of materials, construction and finish. Include relationship with adjacent construction.
 
          1.5QUALITY ASSURANCE
 
          A.Manufacturer Qualifications: Company specializing in manufacturing products specified in this section with a minimum five years documented experience.
 
          B.Installer Qualifications: Company specializing in performing Work of this section with minimum two years documented experience with projects of similar scope and complexity.
 
          C.Source Limitations: Provide each type of product from a single manufacturing source to ensure uniformity.
          ** NOTE TO SPECIFIER ** Include mock-up if the project size or quality warrant the expense. The following is one example of how a mock-up on might be specified. When deciding on the extent of the mock-up, consider all the major different types of work on the project.
 
          D.Mock-Up: Construct a mock-up with actual materials in sufficient time for Architect's review and to not delay construction progress. Locate mock-up as acceptable to Architect and provide temporary foundations and support.
          1.Intent of mock-up is to demonstrate quality of workmanship and visual appearance.
          2.If mock-up is not acceptable, rebuild mock-up until satisfactory results are achieved.
          3.Retain mock-up during construction as a standard for comparison with completed work.
          4.Do not alter or remove mock-up until work is completed or removal is authorized.
 
          1.6PRE-INSTALLATION CONFERENCE
 
          A.Convene a conference approximately two weeks before scheduled commencement of the Work. Attendees shall include Architect, Contractor and trades involved. Agenda shall include schedule, responsibilities, critical path items and approvals.
 
          1.7DELIVERY, STORAGE, AND HANDLING
 
          A.Store and handle in strict compliance with manufacturer's written instructions and recommendations.
 
          B.Protect from damage due to weather, excessive temperature, and construction operations.
 
          1.8PROJECT CONDITIONS
 
          A.Maintain environmental conditions (temperature, humidity, and ventilation) within limits recommended by manufacturer for optimum results. Do not install products under environmental conditions outside manufacturer's recommended limits.
 
          1.9WARRANTY
 
          A.Manufacturer's standard limited warranty unless indicated otherwise.
 
          PART 2PRODUCTS
 
          2.1MANUFACTURERS
 
          A.Acceptable Manufacturer: Sherwin-Williams, which is located at: 101 Prospect Ave.; Cleveland, OH 44115; Toll Free Tel: 800-4-SHERWIN (474-3794; Tel: 216-566-2000; Fax: 216-566-1392; Email: request info; Web: http://www.sherwin-williams.com/pro/services/architects_designers | http://www.generalpolymers.com
          ** NOTE TO SPECIFIER ** Delete one of the following two paragraphs; coordinate with requirements of Division 1 section on product options and substitutions.
 
          B.Substitutions: Not permitted.
 
          C.Requests for substitutions will be considered in accordance with provisions of Section 01 60 00 - Product Requirements.
 
          2.2POLYURETHANE JOINT SEALANTS
          ** NOTE TO SPECIFIER ** Loxon™ S1 is designed for a wide range of sealing and caulking applications in joints subject to structural movement. After curing, it exhibits a flexible, resilient, rubber-like appearance that adheres to a wide variety of substrates. It provides up to 70 percent total joint movement and is especially effective in joints between dissimilar substrates. Loxon™ S1 is VOC compliant in all 50 states.
 
          2.3Expansion joints, interior/ exterior - above and below grade, aluminum and wood window frames, vinyl siding, skylights, doors, foundations, fascia, precast units, store front assemblies, panel walls, roofing, and parapets. Delete options not required.
 
          A.Basis of Design: LOXON S1; as manufactured and supplied by Sherwin Williams. One component, high performance, moisture cure, non-sag, gun-grade elastomeric polyurethane sealant.
          1.Standards Compliance: Meets or exceeds the following.
          a.ASTM C920, Type S, Grade NS, Class 35, Use: NT, A, M, O, and T.
          b.TT-S-00230C, Type II, Class A, Non-Sag, One Component.
          c.CAN/CGSB-19.13-M87.
          2.Properties, Uncured:
          a.Tack free Time per ASTM C679 and TT-S-00230C: Passes.
          b.Curing Time at 75 Degrees F (23.9 degrees C) and 50 Percent RH: Skins less than 24 hours. Full Cure: Approximately one week.
          c.Flow, Sag or Slump per TT-S-00230C/ASTM C639: Passes.
          d.Staining per TT-S-00230C/ASTM C510: Passes.
          3.Properties, After Full Cure. At 75 degrees F (23.9 degrees C) and 50 percent RH. The physical properties will remain relatively unchanged over a temperature range of minus 40 to 180 degrees F (minus 40 to 82.2 degrees C).
          a.Hardness (Shore A) per ASTM D2240/ASTM C661: 27, plus or minus 2.
          b.Tensile Strength per ASTM D412: 350 psi (kPa).
          c.Elongation per ASTM D412: 800 percent.
          d.Adhesion in Peel per TT-S-00230C/ASTM C794: 30 pli.
          e.Stain and Color Change per TT-S-00230C/ASTM C510: Passes.
          f.Ozone Resistance: Good.
          g.Joint Movement Capability per TT-S-00230C/ASTM C719: Plus or minus 35 percent.
          1)Substrate: Primed mortar, unprimed glass, aluminum.
          h.UV Resistance per ASTM C793: Good.
          4.Substrates: Cementitious board, masonry, stucco, concrete, wood, vinyl, aluminum, steel, ceramics, clay and concrete roof tiles, and natural stone.
          5.Shelf Life: 12 months from date of manufacturer when stored at room temperature.
          6.Excellent weatherability when exposed to ultraviolet radiation, atmospheric hydrocarbons and extremes in temperature.
          7.Joints accommodate 70 percent total joint movement while not affecting the seal or adhesion bond.
          8.Joints properly designed and sealed will extend and compress a total of 70 percent of installation width with no more than 35 percent movement in a single direction.
          9.Cured sealant can be painted with emulsion or synthetic enamel paints.
          10.Unaffected by contact with water after cure on non-porous substrates.
          11.Porous Substrates: Priming is recommended if sealant will be subjected to prolonged periods of immersion.
          ** NOTE TO SPECIFIER ** Delete color options not required.
          12.Color: White.
          13.Color: Off-White.
          14.Color: Limestone.
          15.Color: Stone.
          16.Color: Tan.
          17.Color: Aluminum Gray.
          18.Color: Redwood Tan.
          19.Color: Medium Bronze.
          20.Color: Special Bronze.
          21.Color: Black.
          ** NOTE TO SPECIFIER ** Loxon™ H1 is designed for expansion joints, vertical or horizontal, interior/ exterior, above grade, joints with high movement, aluminum, vinyl and wood window frames, vinyl siding, skylights, doors, foundations, fascia, precast units, store front assemblies, panel walls, roofing, sanitary applications and parapets. After curing, exhibits a flexible, resilient, rubber-like appearance. Adheres to a wide variety of substrates. The combination of extreme flexibility (ASTM C920 Class 50) and very low modulus make this sealant excellent for properly constructed EIFS substrates. 100 percent extension in EIFS joints with minimal stress on bond line. Loxon™ H1 is VOC compliant in all 50 states. Delete options not required.
 
          B.Basis of Design: LOXON H1; as manufactured and supplied by Sherwin Williams. One component, low modulus, high performance, high movement, fast-curing, non-sag, gun-grade, moisture cure, hybrid sealant.
          1.Standards Compliance: Meets or exceeds the following.
          a.ASTM C920, Type S, Grade NS, Class 50, Use: NT, A, M, and O.
          b.TT-S-00230 C, Type 11, Class A, Non-Sag.
          c.TT-S-001543A, Type II, Class A, Non-Sag.
          2.Properties, Uncured:
          a.Tack free Time per ASTM C679: 90 minutes.
          b.Curing Time at 75 Degrees F (23.9 degrees C) and 50 Percent RH: 2 to 7 days depending on bead size. Varies with relative humidity.
          c.Flow, Sag or Slump per ASTM C639: Passes.
          d.Staining per ASTM C510: Passes.
          3.Properties, After Full Cure. At 75 degrees F (23.9 degrees C) and 50 percent RH. The physical properties will remain relatively unchanged over a temperature range of minus 40 to 180 degrees F (minus 40 to 82.2 degrees C).
          a.Hardness (Shore A) per ASTM C661: 16, plus or minus 2.
          b.Tensile Strength per ASTM D412: 140-180 psi (965.3 to 1241 kPa).
          c.Elongation per ASTM D412: 800-1,000 percent.
          d.Adhesion in Peel per ASTM C794: 35 pli.
          e.Stain and Color Change per ASTM C510: Passes.
          f.Ozone Resistance: Good.
          g.Joint Movement Capability per ASTM C719: Plus or minus 50 percent.
          1)Substrate: Primed mortar, unprimed glass, aluminum.
          h.Extension per ASTM C1382: 100 percent.
          i.UV Resistance per ASTM C793: Good.
          4.Substrates: EIFS, cementitious board, masonry, stucco, concrete, wood, vinyl, aluminum, steel, ceramics, clay and concrete roof tiles, and stone.
          5.Shelf Life: 15 months from date of manufacturer when stored at room temperature.
          6.Excellent weatherability when exposed to ultraviolet radiation, atmospheric hydrocarbons and extremes in temperature.
          7.Joints accommodate 100 percent total joint movement while not affecting the seal or adhesion bond.
          8.Joints properly designed and sealed will extend and compress a total of 100 percent of installation width with no more than 50 percent movement in a single direction.
          9.Cured sealant can be painted with emulsion or synthetic enamel paints.
          10.Unaffected by contact with water after cure on non-porous substrates.
          11.Porous Substrates: Priming is recommended if sealant will be subjected to sporadic periods of immersion. Not intended for continuous immersion.
          ** NOTE TO SPECIFIER ** Delete color options not required.
          12.Color: White.
          13.Color: Limestone.
          14.Color: Stone.
          15.Color: Black.
          16.Color: Medium Bronze.
          17.Color: Special Bronze.
          18.Color: Aluminum Gray.
          19.Color: Tan.
          20.Color: Off-White.
          21.Color: Redwood Tan.
          ** NOTE TO SPECIFIER ** LOXON TX is designed for a wide range of sealing and caulking applications in joints subject to structural movement. After curing, it exhibits a flexible, resilient, and textured appearance that adheres to a wide variety of substrates. The textured appearance complements masonry and other rough surfaces. Provides up to 50 percent total joint movement and is especially effective in joints between dissimilar substrates. VOC compliant in all 50 states. It is used for expansion joints, interior/ exterior - above and below grade, aluminum and wood window frames, vinyl siding, skylights, doors, foundations, fascia, precast units, store front assemblies, panel walls, roofing, and parapets. Delete options not required.
 
          C.Basis of Design: LOXON TX; as manufactured and supplied by Sherwin Williams. One component, high performance, moisture cure, non-sag, gun-grade elastomeric textured polyurethane sealant.
          1.Standards Compliance: Meets or exceeds the following.
          a.ASTM C920, Type S, Grade NS, Class 25, Use: NT, A, M, and O.
          b.TT-S-00230C, Type II, Class A, Non-Sag, One Component.
          2.Properties, Uncured:
          a.Tack free Time per ASTM C679 and TT-S-00230C: Passes.
          b.Curing Time at 75 Degrees F (23.9 degrees C) and 50 Percent RH: Skins less than 24 hours. Full Cure: Approximately one week. Cure time varies with relative humidity.
          3.Properties, After Full Cure. At 75 degrees F (23.9 degrees C) and 50 percent RH. The physical properties will remain relatively unchanged over a temperature range of minus 40 to 180 degrees F (minus 40 to 82.2 degrees C).
          a.Hardness (Shore A) per ASTM D2240/ASTM C661: 27, plus or minus 2.
          b.Tensile Strength per ASTM D412: 215 psi (kPa).
          c.Elongation per ASTM D412: 735 percent.
          d.Adhesion in Peel per ASTM C794: 22 pli.
          e.Stain and Color Change per TT-S-00230C/ASTM C510: Passes.
          f.Ozone Resistance: Good.
          g.Joint Movement Capability per TT-S-00230C/ASTM C719/ASTM C793: Plus or minus 25 percent.
          h.UV Resistance per ASTM C793: Good.
          ** NOTE TO SPECIFIER ** Delete color options not required.
          4.Color: White.
          5.Color: Limestone.
          6.Color: Stone.
          7.Color: Black.
          8.Color: Special Bronze.
          9.Color: Aluminum Gray.
          10.Substrates: Cementitious board, masonry, stucco, concrete, wood, vinyl, aluminum, steel, ceramics, clay and concrete roof tiles, natural stone.
          11.Shelf Life: 12 months from date of manufacturer when stored at room temperature.
          12.Excellent weatherability when exposed to ultraviolet radiation, atmospheric hydrocarbons and extremes in temperature.
          13.Joints accommodate 50 percent total joint movement while not affecting the seal or adhesion bond.
          14.Joints properly designed and sealed will extend and compress a total of 50 percent of installation width with no more than 25 percent movement in a single direction.
          15.Cured sealant can be painted with emulsion or synthetic enamel paints.
          16.Unaffected by contact with water after cure on non-porous substrates.
          17.Porous Substrates: Priming is recommended if sealant will be subjected to prolonged periods of immersion.
          ** NOTE TO SPECIFIER ** LOXON SL1 is designed for expansion joints in concrete floors and decks. After curing, Loxon SL1 exhibits flexibility and abrasion / puncture resistance. It cures to a solid, rubber-like consistency, providing up to 50 percent total joint movement and is especially effective in joints between dissimilar substrates. Loxon SL1 is VOC compliant in all 50 states. Delete options not required.
 
          D.Basis of Design: LOXON SL1; as manufactured and supplied by Sherwin Williams. One component, self-leveling, moisture cure, elastomeric polyurethane sealant.
          1.Standards Compliance: Meets or exceeds the following.
          a.ASTM C920, Type S, Grade P, Class 25, Use: NT, A, M, O, and T.
          b.TT-S-00230C, Type I, Class A.
          c.CAN/CGSB-19.13-M87.
          2.Properties, Uncured:
          a.Tack free Time per ASTM C679 and TT-S-00230C: Passes; less than 72 hours.
          b.Curing Time at 75 Degrees F (23.9 degrees C) and 50 Percent RH: Skins less than 24 hours. Full Cure: Approximately one week.
          3.Properties, After Full Cure. At 75 degrees F (23.9 degrees C) and 50 percent RH. The physical properties will remain relatively unchanged over a temperature range of minus 40 to 180 degrees F (minus 40 to 82.2 degrees C).
          a.Hardness (Shore A) per ASTM D2240/ASTM C661: 25, plus or minus 2.
          b.Tensile Strength per ASTM D412: 300 psi (kPa).
          c.Elongation per ASTM D412: 800 percent.
          d.Ozone Resistance: Good.
          e.Joint Movement Capability per TT-S-00230C/ASTM C719/ASTM C793: Plus or minus 25 percent.
          f.UV Resistance per ASTM C793: Good.
          4.Color: Limestone
          5.Substrates: Concrete and metal.
          6.Shelf Life: 12 months from date of manufacturer when stored at room temperature.
          7.Excellent weatherability when exposed to ultraviolet radiation, atmospheric hydrocarbons and extremes in temperature.
          8.Joints accommodate 50 percent total joint movement while not affecting the seal or adhesion bond.
          9.Joints properly designed and sealed will extend and compress a total of 50 percent of installation width with no more than 25 percent movement in a single direction.
          10.Cured sealant can be painted with emulsion or synthetic enamel paints.
          11.Unaffected by contact with water after cure on non-porous substrates.
          12.Porous Substrates: Priming is recommended if sealant will be subjected to prolonged periods of immersion.
          ** NOTE TO SPECIFIER ** LOXON SL is designed for Horizontal, expansion joints, interior / exterior, driveways / garages, control joints, sidewalks, decks, pavers, industrial floors, plaza decks, parking structures and pitch pans. Delete options not required.
 
          E.Basis of Design: LOXON SL2; as manufactured and supplied by Sherwin Williams. Two component, self-leveling, highly flexible, non-priming, high performance polyurethane sealant that is mixed and poured in place.
          1.Standards Compliance: Meets or exceeds the following.
          a.ASTM C920, Type M, Grade P, Class 25, Use: T, NT, A, M, O, and I.
          b.TT-S-00227E, Type I, Class A.
          2.Properties, Uncured:
          a.Tack free Time per ASTM C679 and TT-S-00230C: Less than 24 hours.
          b.Curing Time at 70 Degrees F (23.9 degrees C): Skins less than 24 hours. Full Cure: Approximately one week. Cure varies with relative humidity.
          3.Properties, After Full Cure. At 75 degrees F (23.9 degrees C) and 50 percent RH. The physical properties will remain relatively unchanged over a temperature range of minus 40 to 180 degrees F (minus 40 to 82.2 degrees C).
          a.Hardness (Shore A) per ASTM D2240/ASTM C661: 32, plus or minus 2.
          b.Tensile Strength per ASTM D412: 125 psi (kPa).
          c.Elongation per ASTM D412: 240 percent.
          d.Adhesion in Peel per ASTM C794: Passes.
          e.Staining per ASTM C510 and TT-S-00230C: Passes.
          f.Ozone Resistance: Good.
          g.Joint Movement Capability per TT-S-00230C/ASTM C719/ASTM C793: Plus or minus 25 percent.
          h.UV Resistance per ASTM C793: Good.
          ** NOTE TO SPECIFIER ** Delete color or color pack options not required.
          4.Color: Limestone.
          5.Color: Tint Base.
          6.Color Pack: Off white.
          7.Color Pack: Limestone.
          8.Color Pack: Tan
          9.Color Pack: Aluminum gray.
          10.Color Pack: Redwood tan.
          11.Color Pack: White.
          12.Color Pack: Stone.
          13.Color Pack: Special bronze.
          14.Color Pack: Worldly gray.
          15.Color Pack: Cork wedge.
          16.Color Pack: Pier.
          17.Color Pack: Fireweed.
          18.Color Pack: Buff.
          19.Color Pack: Lotus pod.
          20.Color Pack: Pine nut.
          21.Color Pack: Country squire.
          22.Color Pack: Sand dollar.
          23.Color Pack: Oak barrell.
          24.Color Pack: Medium bronze.
          25.Color Pack: Black.
          26.Substrates: Concrete and metal.
          27.Shelf Life: 12 months from date of manufacturer when stored at room temperature.
          28.Excellent weatherability when exposed to ultraviolet radiation, atmospheric hydrocarbons and extremes in temperature.
          29.Joints accommodate 50 percent total joint movement while not affecting the seal or adhesion bond.
          30.Joints properly designed and sealed will extend and compress a total of 50 percent of installation width with no more than 25 percent movement in a single direction.
          31.Cured sealant can be painted with emulsion or synthetic enamel paints.
          32.Unaffected by contact with water after cure on non-porous substrates.
          33.Porous Substrates: Priming is recommended if sealant will be subjected to prolonged periods of immersion.
          ** NOTE TO SPECIFIER ** Loxon™ NS2 is designed for Interior and exterior, expansion joints, aluminum and wood window frames, above & below grade, parking structures, immersed in water, panel walls, precast units, roofing, fascia, parapets, vinyl siding and storefront assemblies. Delete options not required.
 
          F.Basis of Design: LOXON NS2; as manufactured and supplied by Sherwin Williams. Two-component, non-sag, highly flexible, non-priming, high performance polyurethane sealant. It provides up to 50 percent total joint movement and can be tinted to multiple colors.
          1.Standards Compliance: Meets or exceeds the following.
          a.ASTM C-920, Type M, Grade NS, Class 25, Use: NT, T, A, M, 0, and I.
          b.TT- S-00227E, Type II, Class A.
          2.Properties, Uncured:
          a.Tack free Time per ASTM C679 and TT-S-00230C: Less than 48 hours.
          b.Curing Time at 75 Degrees F (23.9 degrees C) and 50 Percent RH: Will skin in 3 to 4 hours, Full Cure: Approximately one week. Varies with relative humidity.
          c.Flow, Sag or Slump per TT-S-00230C/ASTM C639: Passes.
          d.Staining per TT-S-00230C/ASTM C510: Passes.
          3.Properties, After Full Cure. At 75 degrees F (23.9 degrees C) and 50 percent RH. The physical properties will remain relatively unchanged over a temperature range of minus 40 to 180 degrees F (minus 40 to 82.2 degrees C).
          a.Hardness (Shore A) per ASTM D2240/ASTM C661: 27, plus or minus 2.
          b.Tensile Strength per ASTM D412: 160 psi (kPa).
          c.Elongation per ASTM D412: 280 percent.
          d.Adhesion in Peel per TT-S-00230C/ASTM C794: Greater than 10.
          e.Stain and Color Change per TT-S-00230C/ASTM C510: Passes.
          f.Ozone Resistance: Good.
          g.Joint Movement Capability per TT-S-00230C/ASTM C719: Plus or minus 25 percent.
          1)Substrate: Primed mortar, unprimed glass, aluminum.
          h.UV Resistance per ASTM C793: Good.
          ** NOTE TO SPECIFIER ** Delete color options not required.
          4.Color: Limestone.
          5.Color: Tint Base.
          6.Color Pack: Off white.
          7.Color Pack: Limestone.
          8.Color Pack: Tan.
          9.Color Pack: Aluminum gray.
          10.Color Pack: Redwood tan.
          11.Color Pack: White.
          12.Color Pack: Stone.
          13.Color Pack: Special bronze.
          14.Color Pack: Worldly gray.
          15.Color Pack: Cork wedge.
          16.Color Pack: Pier.
          17.Color Pack: Fireweed.
          18.Color Pack: Buff.
          19.Color Pack: Lotus pod.
          20.Color Pack: Pine nut.
          21.Color Pack: Country squire.
          22.Color Pack: Sand dollar.
          23.Color Pack: Oak barrell.
          24.Color Pack: Medium bronze.
          25.Color Pack: Black.
          26.Substrates: Cementitious board, masonry, stucco, concrete, wood, vinyl, aluminum, steel, ceramics, clay and concrete roof tiles and natural stone.
          27.Shelf Life: 12 months from date of manufacturer when stored at room temperature.
          28.Excellent weatherability when exposed to ultraviolet radiation, atmospheric hydrocarbons and extremes in temperature. Joints designed to accommodate 50 percent total joint movement will not affect the seal or adhesion bond.
          29.Joints properly designed and sealed will extend and compress a total of 50 percent of the installation width with no more than 25 percent movement in a single direction.
          30.Cured sealant can be painted with emulsion or synthetic enamel paints.
          31.Unaffected by contact with water after cure on non-porous substrates.
          32.Porous Substrates: Priming is recommended if the sealant will be subjected to prolonged periods of immersion.
 
          2.4POLYURETHANE JOINT SEALANT PRIMERS
          ** NOTE TO SPECIFIER ** LOXON Porous Surfaces Primer may be applied interior or exterior and only above grade. Delete options not required.
 
          A.Basis of Design: LOXON Porous Surfaces Primer as manufactured and supplied by Sherwin Williams. A quick-drying solvent-based primer for use with Loxon H1 low modulus hybrid sealant on porous surfaces only.
          1.Promotes improved adhesion to porous substrates requiring a primer.
          2.Flashpoint: 65 degrees F (18 degrees C).
          3.Solids: 26 percent volume.
          4.VOC Content: 789 grams per L.
          5.Drying Time: Approximately 15 minutes at 70 degrees F (21 degrees C) and 50 percent humidity.
          6.Yield: 35 to 40 sq ft per pint. 450 linear ft for 1/2 inch (13 mm) deep joint.
          7.Substrates: Concrete, masonry, and stone.
          ** NOTE TO SPECIFIER ** LOXON Quick Drying Primer may be applied interior or exterior and only above grade. Delete options not required.
 
          B.Basis of Design: LOXON Quick Dry Primer; as manufactured and supplied by Sherwin Williams. A quick-drying solvent-based primer for priming joints and substrates before application of LOXON sealants: S1, TX, H1, SL1, SL2, and NS2.
          1.Promotes improved adhesion to many substrates requiring a primer.
          2.Flashpoint: 65 degrees F (18 degrees C).
          3.Viscosity: 90 cps.
          4.Solids: 35 percent volume.
          5.VOC Content: 584 grams per L less water and exempt solvents.
          6.Drying Time: Approximately 15 minutes at 70 degrees F (21 degrees C) and 50 percent humidity.
          7.Yield: 35 to 40 sq ft per pint. 450 linear ft for 1/2 inch (13 mm) deep joint.
          8.Substrates: Concrete, masonry, metal, and fluorocarbon coatings, on aluminum.
          9.Shelf Life: 2 years when properly stored.
 
          PART 3EXECUTION
 
          3.1EXAMINATION
 
          A.Do not begin installation until substrates have been properly constructed and prepared.
 
          B.If substrate preparation is the responsibility of another installer, notify Architect in writing of unsatisfactory preparation before proceeding.
 
          3.2PREPARATION
 
          A.Clean surfaces thoroughly prior to installation.
 
          B.Prepare surfaces using the methods recommended by the manufacturer for achieving the best result for the substrate under the project conditions.
 
          3.3INSTALLATION
 
          A.Install in accordance with manufacturer's instructions, approved submittals, and in proper relationship with adjacent construction.
 
          3.4FIELD QUALITY CONTROL
 
          A.Field Inspection: Coordinate field inspection in accordance with appropriate sections in Division 01.
          ** NOTE TO SPECIFIER ** Include if manufacturer provides field quality control with onsite personnel for instruction or supervision of product installation, application, erection or construction. Delete if not required.
 
          B.Manufacturer's Services: Coordinate manufacturer's services in accordance with appropriate sections in Division 01.
 
          3.5CLEANING AND PROTECTION
 
          A.Clean products in accordance with the manufacturers recommendations.
 
          B.Touch-up, repair or replace damaged products before Substantial Completion.
 
         
END OF SECTION