It is a silicone-based material that helps ensure positive lubrication
and sealing by slightly swelling rubber O-rings and seals. Is
compatible with most plastics and rubbers with provide heat-stable
and oxidation-resistant performance to extend the life of the O-Ring. It
is waterproof and shields against moisture and other contaminants. It
also helps to seat the O-ring properly, speeding up assembly
operations.