Dow Primer-C OS Low Solids Primer For Silicone Sealants - 358 Gram Bottle

DOWSIL Primer-C OS, for silicone adhesives and sealants, offers a low VOC and unique fluorescing feature that allows for a visual quality control check to ensure that the primer has been applied. DOWSIL Primer-C OS improves adhesion of silicone sealants to a variety of substrates, accelerates adhesion build of 2 part structural sealants,  fluoresces under a 365 nm wavelength light so that a visual check can confirm presence of primer all while conformings to South Coast and Bay Air Quality Management District Regulations for Architectural Sealant Primers. DOWSIL Primer-C OS  has a low VOC at 49 g/l as a low solids sealant primer, is user friendly with low VOC,  improves quality control processes by offering a visual confirmation of primer presence and has a quick cure time. DOWSIL Primer-C OS is non-staining and improves sealant adhesion to plastics. This moisture curing primer is a film-forming adhesion promoter.

Applications

• Accelerated adhesion of DOWSIL™ 983 Structural Glazing Sealant to coated aluminum substrates such as polyvinylidene fluoride (PVDF) or Kynar® based paints
• For in shop or field use with DOWSIL™ construction sealants, both 1 and 2 part.

Limitations

• This primer will dissolve the expanded polystyrene (EPS) insulation board found within EIFS
• Over-application of this product onto EIFS substrates could diminish the integrity of the substrate and void the EIFS manufacturers warranty.
• Expired primer turns milky white.
• This product is neither tested nor represented as suitable for medical or pharmaceutical uses.