Mold Max XLS II is a Shore 30A tin-catalyzed silicone rubber that exhibits very low long-term shrinkage. XLS II molds last longer than other silicones in production when casting chemically harsh resins such as epoxies and polyesters as well as urethane foams.
Mix ratio is 100A:10B by weight. Pot life is 40 minutes and cure time is 24 hours at room temperature. Mold Max XLS II can be thickened with THI-VEX additive for brush-on applications.
Important: you must weigh Part A & B components using a gram scale to be successful with Mold Max XLS II.