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
Technical Data for Dow Barrier Primer
Work / Pot Time (min) 480 Test Method Mix Ratio 1:1 (by volume)
Flash Point (°F) 95.0
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
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.)
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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