420 Clear VCT is a clear, thin-spread floor adhesive that bonds to concrete and cementitious underlayments in commercial and residential applications. It has a strong initial grab and excellent bond strength. The product is moisture- and alkali-resistant and has up to 18 hrs of working time. It dries clear and provides anti-microbial protection. Henry Adhesives. 866-443-4455.  www.wwhenry.com