F81 Epoxy Flooring Adhesive. STYCCOBOND F81 is a solvent free, two-part epoxy adhesive designed for use in areas that may be subject to surface water. When the adhesive has cured it is resistant to water, oil and grease. Although it is suitable for outdoor use, it is not intended to be used as, or a substitute for a waterproof surface membrane. STYCCOBOND F81 can be used for securing a wide range of floorcoverings including some vinyl and rubber floorings, PVC backed synthetic grass carpet and fibrebonded carpets.