Momentive silicone adhesive sealant momentive tse399 this clear adhesive sealant from momentive is a single component rtv which cures quickly by reacting with atmospheric moisture to form a soft dielectric silicone rubber and is ideal for use on metal glass and plastics these materials incorporate a newly developed crosslinking chemistry and are non corrosive to metallic substrates they are particularly well suited for use in electrical and electronic applications when cured they retain