Chemicallawinfo database

This standard specifies the product classification, requirements, test methods, inspection rules, marking, packaging, and storage for curing agents for solvent-based polyurethane wood coatings. It is applicable to compounds rich in isocyanate groups (NCO), produced by the addition polymerization or self-polymerization reaction of diisocyanate monomers (such as toluene diisocyanate (TDI), hexamethylene diisocyanate (HDI), isophorone diisocyanate (IPDI), diphenylmethane diisocyanate (MDI), etc.) and polyhydroxy compounds, dissolved in organic solvents at a certain ratio for direct use as curing agents for various solvent-based polyurethane wood coatings.