Dow Corning 758 Silicone Sealant

Credit: Dow Corning Corp.

What makes this product green?

  • Low-emitting
  • Prevents moisture or air quality problems


Dow Corning's 758 is a neutral-cure silicone caulk designed to adhere to materials common in weather-resistant barriers. According to the manufacturer, 758 achieves primerless adhesion to surfaces including LDPE, anodized and powder-coated aluminum, and vinylCommon term for polyvinyl chloride (PVC). In chemistry, vinyl refers to a carbon-and-hydrogen group (H2C=CH–) that attaches to another functional group, such as chlorine (vinyl chloride) or acetate (vinyl acetate).. It has VOCVolatile organic compound. An organic compound that evaporates readily into the atmosphere; as defined by the U.S. Environmental Protection Agency, VOCs are organic compounds that volatize and then become involved in photochemical smog production. content of 42 g/l.

Manufacturer Information

Dow Corning Corp.
P.O. Box 994
Midland, MI 48686
Phone: 989-496-4400

Listed in: Caulk Joint Sealants


Jan 7, 2015 3:47 PM ET

Response to Ryan Ouimette
by Martin Holladay, GBA Advisor

I suggest that you post your question on GBA's Q&A page, where more people will see your question and be able to answer. Here is the link: Q&A page.

Jan 7, 2015 3:34 PM ET

Vapour Barrier Sealant
by Ryan Ouimette

Has any one used this product to seal poly vapour barrier?