Dow Barrier Primer

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Description for Dow Barrier Primer

• Adhesion promoter for use on sensitive porous substrates • Two-component epoxy resin system • Suitable for use on substrates such as natural stone, masonry and glass-reinforced concrete.

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Application Type	Primer
1 Part or 2 Part	2-Part
Material Form	Liquid
Substrate	Metal, Carbon steel, Glass-reinforced concrete
Manufacturer	Dow
Chemistry	Epoxy resin
Cure Method	2-Part
Color	Pale yellow

Best Practices for Dow Barrier Primer

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Technical Data for Dow Barrier Primer

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Overview

Application Type
- Primer
1 Part or 2 Part
- 2-Part
Material Form
- Liquid
Substrate
- Concrete - Glass-reinforced concrete
- Metal
- Steel - Carbon steel
Industry
- Construction
Chemistry
- Epoxy - Epoxy resin
Cure Method
- 2-Part Cure - 2-Part
Color
- Yellow - Pale yellow

Specifications

Cure Specs

Work / Pot Time (min)	480	Test Method
Mix Ratio	1:1 (by volume)

Other Properties

Flash Point (°F)	95.0

Business Information

Shelf Life Details	From date of manufacture
Shelf Life (mon)	12

Not Good For

Don't Use For	Dow Corning® 790 Silicone Building Sealant, Dow Corning® 888 Silicone Joint Sealant, Dow Corning® 890-SL Silicone Joint Sealant, Dow Corning® NS Parking Structure Sealant, Dow Corning® SL Parking Structure Sealant

Best Practices for Dow Barrier Primer

*See Terms of Use Below
1. Surface Preparation
  
  Surfaces to be primed should be clean, dry and free from contaminants. Use an abrasive cleaning method and then blow with compressed air to remove dust.(Air compressors used for this purpose must be equipped with traps capable of providing moisture- and oil-free air.)
2. Application
  
  Mix together equal parts of Parts A and B (by volume). After mixing, the primer should be used within 8 hours. Apply a thin, uniform layer by brush to the surfaces to be primed, avoiding contact with areas that will not be sealed. Allow the primer to air dry for a minimum of one hour before sealant application (primer should be dry to the touch). Sealant should be applied within 6 hours of primer application.
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