F44 Acrylic Adhesive. STYCCOBOND F44 is a solvent free acrylic emulsion adhesive, which is designed to give a high bond strength, strong initial tack and a long open time. It is protected against bio-degradation and is suitable for use over normal underfloor heating installations. STYCCOBOND F44 can be used for securing vinyl sheet and tile floorcoverings to EN654, EN649 and EN651; rubber floorcoverings and some textile floorcoverings with PVC and polyurethane foam backings. STYCCOBOND F44 can also be used in conjunction with STYCCOBOND F2 Release Adhesive to provide a RELEASE BOND system.