Tra-Con Tra-Cast FS255 Flexible Clear Epoxy Casting Compound

TRA-CAST FS-255 is a clear, low viscosity, epoxy casting compound recommended for industrial embedding and casting applications where its combination of superior properties -- good clarity, long pot life, near-zero shrinkage, low residual stress, improved flexibility, and excellent impact strength -- are required. It readily bonds to ceramics, glass, most metals, and many plastics, and it is therefore especially useful for aerospace and electronic applications where its flexibility, consistency and self-sealing properties are needed (i.e. repottable electronic assemblies). Fully cured TRA-CAST FS-255 is a clear electrical insulator which is mechanically strong and tougher than comparable silicone gels, and it is further resistant to water, weather, gases and vapors, petroleum products (fuels, solvents and lubricants), mild acids and alkalis, salt solutions and many other organic and inorganic compounds. A vacuum de-airing step for 15 minutes may be required for the best clarity and optical properties. Longer cures at 25°C may be required for more fully matured castings.Information provided by Tra-Con Inc.