Henry 647 PlumPro is an ultra-fast-track, roller-applied adhesive ideal for quick turnaround, residential and commercial vinyl flooring installations. Including all applications of commercial and residential installation of luxury vinyl tile and plank (LVT and LVP), fiberglass-encapsulated sheet vinyl (cushion back) On all grade levels: concrete, well-bonded cementitious underlayment’s, APA-grade underlayment plywood (untreated), radiant-heated subfloors where temperatures do not exceed 85F (29C), terrazzo, ceramic tile, metal, certain epoxy coating sand existing, fully-adhered, non-cushion-backed resilient. Ideal for DIY or large commercial applications for ease and high quality installations. Sold as a 4 gallon.