DOWSIL™ 1200 OS Primer (Pint)


An air drying primer supplied as a dilute solution of moisture reactive materials in volatile siloxane and is used to improve both the quality and speed of adhesion development to room temperature vulcanizing silicone sealants to a variety of common non-porous substrates.

Technical Data Sheet

  • Adhesion enhancing, colorless primer dispersed in heptane
  • Useful for both moisture-curing RTV, and heat-curing silicones
  • Diluted in low-molecular-weight silicone fluid
  • Meets many international regulations for low VOC content (including European Union)
  • Enhances bonding/adhesion of RTV and heat-cure silicones to ceramics, glass, wood, masonry, structural plastics (including FR-4), and many metals
Typical Properties
Adhesion to Marble, Masonry, Wood
Color Clear
Flash Point, Closed Cup 27 °C
Shelf Life 540 Days
Volatile Organic Content 76 g/liter
Application Benefits
Use Battery Pack, Boards and Assemblies, Components, Connectors, Engine Systems, Housings
Processing-Formulating Benefits
Number of Parts One

Additional information

Weight 1.5 lbs
Dimensions 1 × 1 × 1 in