Quidur 446-31 Modified diphenylmethane diisocyanate Merquinsa Crosslinking / Coupling / Curing Agents >> Isocyanate PU - Thermoplastic, TPU ADHESIVE >> Solvent based SEALANT FOOTWEAR & LEATHER AUTOMOTIVE Soluble in acetone, MEK, ethyl acetate and chlorinated solvents QUIDUR 446-31 is a solvent-free curing agent based on modified MDI, in liquid form at ambient temperature, which is used for cross-linking purposes in polyurethane adhesives. QUIDUR 446-31 improves the temperature resistance of the adhesive joint, for the automotive and shoe industries, when it is used in the production of polyurethane adhesives (PEARLSTICK) in which it behaves as a component in the reaction. It may be used also in the production of solvent - free sealants, of coatings, as a Primer for nonporous substrates. Solvent-free curing agent based on modified MDI. Used for crosslinking purposes in polyurethane adhesives for automotive and shoe industries. Improves temperature resistance. Can be used in the production of solvent-free sealants.