Compatible - Bonds to silicone treated fabrics to prevent water from seeping through seamsWaterproof - Provides a water-tight seal that wont peel or crack over time, keeping you warm and dryLong-lasting - Rubber sealant seals seams and patches pinhole leaks for repairs that last for yearsFlexible - Cures to an elastic, rubber seal that flexes and stretches with high performance gearWeather-resistant - Tough formula is not affected by extreme heat or cold