New Construction: Dow Corning 790 one-part, ultra-low modulus silicone building sealant was used on all the pre-cast concrete wall joints and curtain walls. Dow Corning 795 one-part silicone glazing and weatherproofing sealant was used around all exterior window and door frames. Dow Corning 995 one-part, self-priming, silicone structural adhesive sealant was used for securing the curtain walls.