Quick view Loctite SI 596 Red RTV Silicone Gasket 85G DESCRIPTIONRed, 1-part, flowable smooth, acetoxy silicone paste sealant. LOCTITE® SI 596 is a red, 1-part, flowable smooth, acetoxy silicone paste sealant. It forms a tough, flexible, waterproof, oil-resistant silicone rubber bond. It is also used as... $6.00 Add to Cart Compare