Smith's Clear Penetrating Epoxy Sealer (CPES) consists of a tough, flexible resin system in a solvent blend, and is used to aid in the restoration of rotted or deteriorated wood.
The epoxy resin system chemically adheres to the wood fibers and significantly strengthens them while allowing for normal expansion and contraction.
CPES is effective because it contains a special blend of solvents that penetrate deep into wood cellulose and fibers. When applied to rotten wood, Clear Penetrating Epoxy Sealer changes the cellulose (which the bacteria and fungi find easily digestible) into epoxy impregnated cellulose that resists fungi, while reinforcing and restoring the wood.
The Cold Weather Formula of Clear Penetrating Epoxy Sealer mixes one-to-one by volume as does the Warm Weather Formula. Once mixed, it is recommended that the product be used within its "pot life", although it will be fluid for much longer.