Applying Dow Corning 791 Silicone Weatherproofing Sealant

Dow Corning 791 Gray Silicone Weatherproofing Sealant 791GRY
Brand: Dow Corning
Series: 791

How to use this sealant product

It is recommended that you consult the Dow Corning Americas Technical Manual, Form No. 62-1112, for detailed information on state-of-the-art application methods and joint design. Please contact your local Dow Corning Sales Application Engineer for specific advice.

Preparation

Make sure to clean all joints removing all foreign matter and contaminants like grease, oil, dust, water, frost, surface dirt, old sealants, glazing compounds and any protective coatings.

Method of Application

  • Install necessary backing material or joint filler, setting blocks, spacer shims and tapes.
  • Areas adjacent to your substrate's joints should be masked to ensure neat and clean sealant line results.
  • Primer is most likely not required on non-porous surfaces.
  • On porous surfaces, Dow Corning recommends testing a small area prior to application.
  • To confirm optimal adhesion on any surface, adhesion testing should always be carried out prior to starting any project.
  • Apply Dow Corning 791 silicone weatherproofing sealant in a continuous fashion using a light but steady pressure.
  • Continue to tool the silicone sealant to spread it against the backing material and the joint surfaces before a skin begins to form.
  • The applied caulk should be tooled within 15 minutes or before a cured skin forms.
  • Remove all masking tape immediately after the caulking bead is tooled again to ensure neat and clean sealant line results.

Please contact your local Dow Corning Sales Application Engineer for specific advice.

DISCLAIMER: These instructions are from the product manufacturer. PK Supplies Inc. makes every effort to ensure that these instructions are accurate. By following these instructions you agree that PK Supplies Inc. is not liable for any damages or losses caused by these instructions.

Instructions can be used for...

Dow Corning 791 Gray Silicone Weatherproofing Sealant 791GRY
Dow Corning 791 silicone weatherproofing sealant is a neutral cure, one-part, architectural-type sealant. This excellent silicone sealant is easily gunnable in all weather conditions and cures quite...Read more
$6.89 - $83.76
Dow Corning 791 White Silicone Weatherproofing Sealant Sausage 791WS
Dow Corning 791 silicone weatherproofing sealant sausage is a neutral cure, one-part, architectural-type sealant. This excellent silicone sealant is easily gunnable in all weather conditions and...Read more
$11.99 - $12.09

Your Trusted Supply Source for...

Secure Checkout