PEL-CAT 9807 catalyst is an organic quaternary amine salt that promotes the polyisocyanurate reaction or trimerization. It is suitable for all polyisocyanurate foam systems where it provides a uniform and controlled rise profile compared to potassium based catalysts. For improved flowability consider PEL-CAT 9715 or PEL-CAT 9669 catalysts as well. PEL-CAT 9807 catalyst is typically used in rigid polyurethane foam applications.