PURHarze
PURHarze, or polyurethane resins, are a class of polymers formed by the reaction of polyols with di- or polyisocyanates to produce urethane linkages. They exhibit a broad range of mechanical properties and can be tailored for coatings, foams, adhesives, sealants, and composites.
They are commonly formulated as two-component systems (2K PUR) consisting of a polyol or prepolymer component
PURHarze offer characteristics including strong adhesion to diverse substrates, good chemical and abrasion resistance, and tunable
Processing requires attention to pot life, mixing ratios, and curing conditions. Because isocyanates can cause sensitization