DAP® CONCRETE & MORTAR FILLER & SEALANT is a ready-to-use, waterproof sealant formulated to repair cracks and holes in concrete, mortar and masonry surfaces. It contains silicone additives for improved adhesion, flexibility and water resistance. It forms a durable, 100% waterproof and weatherproof seal. Resists gas, oil, grease and salt. Paintable. Easy to apply, low in odor and water clean-up. VOC compliant. Interior/exterior use.
Surface Preparation: Surface must be clean, dry, structurally sound and free of all old caulk, dirt, grease, damaged concrete & foreign material.
Product Application:
Apply in temperatures above 40F. Do not apply when rain or freezing temperatures are forecasted within 24 hours. Cooler temperatures and higher humidity will slow down dry time.
Cut nozzle at 45° angle to desired bead size.
Load cartridge into caulk gun.
Fill cracks and gaps with sealant.
After application, a more uniform fill or neater appearance may be obtained by tooling lightly witha trowel or putty knife.
Allow to cure 24 hours before direct exposure to water (longer in cooler and/or humid conditions).
Paintable after 2 hours (longer in cool or humid conditions) with latex or oil-based paints.
Clean up excess wet sealant with a damp sponge before it skins over. Excess dried sealant will need to be cut or scraped away.