Dow Corning 3145 RTV MIL-A-46146 Clear Silicone Sealant is a one component, room temperature curing, silicone adhesive that is used for assembling print wire boards and sealing housings, modules, and electrical leads. This 3145 Dow Corning silicone sealant is non-flowing and has high elongation, tensile, and tear strength. 90 mL Tube.