DESMOPHEN R-221-75

DESMOPHEN R-221-75 is a saturated polyester resin supplied in propylene glycol monomethyl ether acetate (PMA). It is useful in improving weatherability and flexibility of polyester systems reacted with polyisocyanates. DESMOPHEN R-221-75 polyester resin is soluble in esters, ketones, glycol ether esters and aromatic hydrocarbons, but is insoluble in aliphatic hydrocarbons. It is compatible with most polyesters and with most polyisocyanates. DESMOPHEN R-221-75 can provide benefits to advanced material formulations by enhancing flexibility and durability of coatings and composites. Its chemical properties make it suitable for applications that require resistance to weathering for outdoor use and structural integrity for high performance materials.