Silicone white sealant paste capable of bonding and sealing most surfaces. Can also be used for potting and coating. Resists ageing and weathering.LOCTITE SI 594 is a white, thixotropic, acetoxy silicone sealant paste. It is designed for superior bonding and sealing to most surfaces. This homogenous product resists ageing, weathering, and thermal cycling, making it suitable for potting, coating, or sealing applications. It can withstand UV light and ozone. Cures via room temperature vulcanizing.