KILZ KLEAR® Clear Sealer & Bonding Primer No. L2201 is a high performance fast-dry multi-surface clear primer developed to seal porous surfaces inside and outside your home.Particularly effective for ‘same color painting', KILZ KLEAR Primer will bond and seal porous and chalky surfaces with little change to current color. KILZ KLEAR Primer is a tough, flexible and breathable film to offer years of service. KILZ KLEAR Primer may also be used to seal highly porous surfaces with a transparent flat finish. Suitable for sealing torn drywall facing paper, dried wallcovering adhesive, ‘hot' joint compounds, concrete and stucco with surface pH up to 12.5. Not recommended for floors.