STAIN-RESISTANT JOINT SEALANT For Aesthetically Sensitive Buildings
Dow Corning 991 is a one-component silicone joint sealant with proprietary stain-resistant technology. It is now offered in North America as an alternative to the two-part Dow Corning 756 Silicone Building Sealant-H.P., due to industry's demand for weatherproofing sealants that resist staining of sensitive substrates and streaking on glass and metal curtain wall panels. The 991 sealant is a ready-to-use version that cures to a traditional semi-gloss finish. Its rapid tack-free time helps reduce dirt pickup, the company says. Dow Corning Corp.; 800/637-5377; www.dowcorning.com/construction