Bergdahl Associates, Inc.

+1 775-323-7542

Use of Adhesion Promoters

• Recommended For Repair Applications (Cheap security!)
  
• Required for polythioethers applied over polysulfides
  Example when applying PR-2001 (Polythioether) over PR-1422 or PR-1440
  
• Required for polysulfides to polysulfide of different chemistry
  Example when applying PR1440 (manganese dioxide) over PR-1422 (Dichromate)

 

Application

Apply a thin coat to the solvent cleaned surface with clean gauze and allow to dry for approximately 30 minutes at standard temperature (77°F at 50% RH).  After drying time, wipe off excess with a clean gauze pad and start the sealant procedure. If surface becomes contaminated or sealing is not accomplished with 4 hours after application of the adhesion promoter, repeat priming procedure.

• Store in original sealed container
• Discard if cloudy or particles are visible
• Do not use past its shelf life.

 

Product	Features	Chemistry	Bonds
PR-142*	Non-crazing for Acrylic and Polycarbonate	Silane	Glass Polycarbonate Acrylic
PR-148	Cleaner and coupling agent	Titanate	Fuel soaked sealant Aged paints and primers Stainless steel Titanium
PR-182	VOC compliant Water based worker/environmentally friendly	Silane
PR-187	Coupling agent for polythioether to polysulfide applications	Epoxy	All surfaces

*Note that PR-142 is used for some polythioether applications

 

All recommendations, statements, and technical data contained herein are based on tests we believe to be reliable and correct, but accuracy and completeness of said tests are not guaranteed and are not to be construed as a warranty, either expressed or implied. User shall rely on his own information and tests to determine suitability of the product for the intended use and assumes all risks and liability resulting from his use of the product.

Bergdahl Associates, Inc. 775-323-7542