PEL-SIL 9346 silicone surfactant is compatible with most polyols and is designed for use with a wide range of second and third generation blowing agents in both appliance formulations and laminated continuous rigid boardstock foam. PELSIL 9346 is designed to maximize the k factor both initially and after long term aging. PEL-SIL 9346 will produce foam with good flowability and a high percentage of closed cells, providing lower repair rates and consistent compliance with energy standards.