Chem-Pruf Door Co.
doors and frames
In 1974, Chem-Pruf founder William V. Pitt designed, engineered and built the first successful industrial fiberglass door that would not bow, rack or warp. This remarkable door was made possible by a unique, now patented, one-piece fiberglass stile and rail system. Tough, corrosion-resistant fiberglass door plates which form the faces of the door were permanently bonded to the stile and rail to create the finished corrosion resistant door. With an idea, a feat of engineering and a wealth of manufacturing know-how, Bill Pitt founded not only Chem-Pruf Door Company but an entire industry.
Chem-Pruf continues to set the standards with industry “firsts":
Neutral Pressure Fire Doors - Chem-Pruf Fiberglass Door Systems are approved for neutral/negative pressure and tested for 45 minutes, 60 minutes and 90 minutes. Chem-Pruf FRP door systems (door and frame) are labeled by Warnock-Hersey (WHI).
Positive Pressure Fire Doors - Chem-Pruf Fiberglass Door Systems are also approved for positive pressure and are tested for 45 minutes, 60 minutes and 90 minutes with UBC 7-2-1997 and are labeled like our negative pressure doors. In addition, Chem-Pruf FRP door systems meet UL 10c NFPA 252.
Door Panel - The FRP fire rated doors are 1-3/4" thick with flush, seamless construction and are manufactured using chemically proven fire retardant resins. Every Chem-Pruf product is custom manufactured to the highest manufacturing standards and strict quality control and are guaranteed for life against failure due to corrosion.
Door Panel - The FDA/USDA doors are 1-3/4" thick and are manufactured using a specifically tailored resin that resists contaminants typically found in food processing applications. The seamless construction eliminates crevices, gaps, seams and other areas where potential bacteria buildup can occur.
Door Panel - The Pharmaceutical Doors are 1-3/4" thick and are manufactured using a specifically tailored resin that resists contaminants typically found in pharmaceutical/clean room environments. The seamless construction eliminates crevices, gaps, seams and other areas where potential bacteria buildup can occur. The FRP door can stand up to daily washdowns and rigorous cleaning with harsh chemicals.
Our engineers and sales staff are eager to help create the exact door for your unique requirements. Call us today at 800-444-6924 and let us show you why we are #1 in the industry in designing and manufacturing custom fiberglass doors. Plus, like all our fiberglass doors, our custom doors are guaranteed not to fail due to corrosion for life.
STYLE 4 DOOR FRAME - STANDARD
Chem-Pruf's Style 4 equal rabbet frame has a profile of 2" x 5 ". This frame conforms to SDI standard dimensions and easily adapts to all types of wall construction with a thickness of 5 " or greater. The header will be 2" unless otherwise specified (see below).
STYLE 5 WALL WINDOW - STANDARD
Chem-Pruf's Style 5 Wall Window is a 1 1/4 inch profile, 5 3/4 inch wide single rabbet fixed window frame with a drainable stop. The drainable stop prevents buildup of dirt or trash on the sill.
The perfect solution to a corrosive environment, Chem-Pruf FRP wall louvers provide years of low-maintenance, corrosion-resistant service. All parts - jambs, headers, sills, slats and vanes - are manufactured from gel-coated, fiberglass-reinforced polymers (FRP). Resins are tailored for the exact conditions where the louvers will be installed.
Louers are of a flush constructions, with a gelcoated outer surface of approximately 25 mills (equal to 50-60 coats of paint). The gelcoat is molded into the laminate and utilizes the same resin chemistry used in the glass resin substrate. Gelcoat serves as the primary barrier against corrosive attack and can be formulated in a wide variety of colors.
In the fabrication process, following the gelcoating, an envelope consisting of 2 ounces of continuous-strand fiberglass is infused with resin to form a completely solid, corrosion -resistant part. Bosses for securing and positioning the slats or vanes are integrally molded at one time as the jambs are formed.
All reinforcing resins contain halogenated additive or coreactants plus anitomy trioxide. Resins yield a flame spread of 25 or less per ASTM E-84 and are self-extinguishing per ASTM D-635. The use of ATH (hydrated aluminum powder) to lower smoke propagation and suppress ignitability is frequently used.
Last Update: 2017-11-29