 DAP was the first to the market with the introduction of latex caulk in 1964, and since then the company has introduced numerous other caulks, sealants, insulating foams and other patch and repair products.They followed with acrylic latex technology in 1970 and silicone sealants in the mid-1980s.In the 1990s, the Plastic Wood brand was integrated into the DAP portfolio of products, and between 2004 and 2006, DAP acquired both Phenoseal and Custom Building Products ready-mix repair products.