Henry 356 Felt Backed Sheet Flooring And Carpet Adhesive, 4 Gal.Henry 356. For installations of residential feltbacked sheet flooring and commercial carpet; Jute, Action Bac (polypropylene), latex unitary, urethane foam, Action Bac (unitary), latex foam backed, nonbacked needle punched. Bonds to: Concrete, underlayments, wood substrates, terrazzo, and existing sheet flooring. Refer to flooring manufacturer's specific recommendations for subfloor preparation. Recommended trowel sizes for carpet are guidlines only,