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1200 primer

DOWSIL™ 1200 OS Primer

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 vulcanising silicone sealants to a variety of common non-porous substrates.

DOWSIL™ 1200 OS Primer

Features of DOWSIL™ 1200 OS Primer

  • 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


  • Adhesion enhancing, colourless primer dispersed in heptane
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