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Silpoly is based on polyester, which means it's hydrophobic (doesn't absorb water). Not all slippery materials are hydrophobic, but this definitely factors in. Silicone sealant also repels water, b...
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Silpoly is based on polyester, which means it's hydrophobic (doesn't absorb water). Not all slippery materials are hydrophobic, but this definitely factors in. Silicone sealant also repels water, b...