GP 5833 Phenolic novolac Georgia-Pacific Chemical Crosslinking / Coupling / Curing Agents Epoxy (EP) ADHESIVE flake phenolic novolac resins for use as curing agents for epoxy resins in molding applications. These resins are useful as co-reactants or hardeners for epoxy resins to produce thermoset systems with high-quality, "engineering plastics" properties. The phenolic novolac resins used are non-heat reactive materials by themselves, but have phenolic-OH groups that react with epoxy groups. This base catalyzed reaction produces a crosslinked polyether structure that is highly resistant to chemicals and heat and provides a good moisture-vapor barrier. Since the curing mechanism does not produce by-products, thick sections may be obtained without voids and stresses and with low shrinkage. These properties are advantageous in applications such as adhesives. Solid novolac resin with low ionic impurities. Used in adhesives. Used also as curing agent for epoxy resins. Solid novolac resin with low ionic impurities. Used as as curing agent for epoxy resins. Produces thermoset systems. Provides resistance to chemicals and heat and a good moisture-vapor barrier. Since the curing mechanism does not produce by-products, thick sections may be obtained without voids and stresses and with low shrinkage. These properties are advantageous in applications such as adhesives.