Berger Roof Shield Bonding Primer

Berger Roof Shield Bonding Primer is a clear transparent, elastomeric acrylic, waterproofing adhesive, bonding primer/sealer.

Berger Roof Shield Bonding Primer is an elastomeric acrylic waterborne, latex based, high resin content formula that contains no fillers or pigments. It is designed to prepare roofing surfaces for a finish coating. Berger Roof Shield Bonding Primer rejuvenates, revitalizes and strengthens the surface to which it is applied, helping to prevent cracking, efflorescence, spalling and segregation.


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High resin content formulaExcellent penetrating characteristicsExcellent adhesion

Surface preparation:

  • Clean exterior surfaces to remove any previous coatings, dirt, grease, and other foreign materials
  • Remove loose paint and powdery substances
  • Patch any holes, cracks, seams, imperfections with Berger Premium Acrylic Caulk or All Purpose Sealant
  • For metal surfaces remove all foreign matter before priming
  • Rusted and uncoated metal must be primed with Berger Red Oxide Primer
  • Use a degreaser on galvanized or coated metals which have oils or surface treatments


Application Procedure:

  • Stir well before using
  • Do not apply when humidity is very high or when coating will be subjected to rain or heavy dew
  • Apply using brush, roller or spray
  • Spread primer uniformly. Spread Rate will vary depending on substrate
  • Apply a coat between 10 to 16 mils wet film thickness
  • Wait at least 4 hours before applying a compatible paint or coating
  • For airless sprayer application use at least a 1 gallon per minute piston type airless sprayer with a minimum tip size of .021
  • Remove all line filters and gun filters before spraying


Tips: No thinning required.

Tools you will need

Paint Brush
Spray Gun

Available Packs

1 Gallon

1 Coat
9-13 m2/ltr**


On well-prepared surfaces, as per the painting system recommended. Please refer to the Product Data Sheet for surface preparation and method of application.

** Actual coverage may vary from the quoted coverage due to factors such as method and condition of application, surface roughness, and porosity.

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