F57 Antistatic Flooring Adhesive. STYCCOBOND F57 is a solvent free, fibre filled acrylic conductive adhesive, which is designed to give a high bond strength, strong initial tack, a long open time and good plasticiser resistance. It is protected against biodegradation and is suitable for use over normal underfloor heating installations. STYCCOBOND F57 can be used for securing a wide range of conductive/antistatic PVC and some textile backed floorcoverings. See the F. Ball Recommended Adhesives Guide for details of specific floorcoverings. For products not listed in the Recommended Adhesives Guide, please contact the floorcovering manufacturer or the F. Ball Technical Department. STYCCOBOND F57 can be applied to STOPGAP smoothing underlayments, structurally sound, smooth, dry subfloors of concrete and sand/cement screed and flooring grade plywood. STOPGAP Waterproof Surface Membranes, sound flooring grade asphalt and other non-absorbent surfaces must be skimmed with a minimum of 3mm of the appropriate STOPGAP smoothing underlayment.