Abstract: A curable silicone elastomer composition is disclosed. The composition comprises one or more non-fluorinated polydiorganosiloxane polymers and silica filler. The silica filler is at least partially treated with a fluorinated hydrophobing treating agent. Also provided is a method of making the composition and its use in the manufacture of insulators for high voltage applications, especially high voltage direct current (HVDC) applications and accessories such as cable joints, cable terminal applications, and connectors. The fluorinated hydrophobing treating agents are selected from one or more silanol terminated fluorinated siloxane oligomer(s) having from 2 to 20 siloxane units, and/or one or more fluorinated silane diol(s), and/or one or more fluorinated trialkoxy silane(s), and/or one or more fluorinated silazane(s), or a mixture thereof.

Abstract: The present disclosure provides for an aqueous coating composition to coat and form a film on porous construction materials to help in controlling efflorescence in the porous construction materials. The aqueous coating composition includes a binder having an acrylic polymer in an acrylic polymer waterborne dispersion, wherein the acrylic polymer has a glass transition temperature (Tg) of 1° C. to 60° C.; and an alkoxy silane coalescing agent in a waterborne silane coalescing emulsion. The aqueous coating composition optionally further includes an additive selected from the group consisting of a pigment, a filler and combinations thereof. In one embodiment, the alkoxy silane coalescing agent provides the only coalescing agent for the acrylic polymer waterborne dispersion in the aqueous coating composition.