; Founded in 1928, NPC Colored Sealants serves several customers in the commercial, residential and industrial sectors. It offers a variety of sealants in more than 200 colors. The company provides water-based adhesive and gutter and lap sealant. NPC Colored Sealants offers products under the SIL-TEX and CO-POLY and 900 Solar Seal brands. It provides sealants for vinyl siding, windows, roof...