Acrylic Bonding Primer 905
Acrylic Bonding Primer 905 is a durable water-based primer suitable for priming most roofing substrates before applying the appropriate top coat. Substrates suitable for the 905 include previously coated metal, smooth and granulated modified bitumen, and built up roofs. Acrylic Bonding Primer 905 is not meant to be a rust primer, use Rust Prime 910 or 912 for any rusted surfaces.
BENEFITS
- Designed to be used as a adhesion bonding primer before roof coatings are applied.
- Excellent adhesion to most roof surfaces.
- Bonds to unstable substrates.
- Provides a tough, adhesive, durable film.
- Quick drying time.
- Environmentally safe.
- Easy to use, easy clean up, non-toxic and VOC compliant water based coating.
APPLICATION
All surfaces to be coated must be clean, dry and free of any oil, grease or dirt. Power washing is recommended. Any existing coating must be checked for good adhesion. Before application, any loosely adhered coating must be removed and bare surfaces must be prepared, cleaned and checked for compatibility.
Acrylic Bonding Primer 905 is ready to use. Thinning is not required or recommended.
- Spray: Airless sprayer. 1/2 g.p.m. capacity with a #017 tip.
- Brush: Good quality synthetic bristle brush.
- Roller: Short nap roller.
This coating conforms to all Air Quality Management Districts and Air Pollution Control Districts requirements for Volatile Organic Content in California, U.S.A.
TYPICAL PHYSICAL PROPERTIES
| Color: | Light Grey |
| Viscosity: | 85 – 100 KU @ 25°C / 77°F |
| Density, lb./gal: | 9.41 ± .1 |
| PH: | > 8.9 |
| Percent Solids by Weight: | 49% ± 1% |
| Flash Point: | Same as water. |
| Hardness, Shore A: | 60 – 80 (ASTM D-2240) |
| Tensile Strength at Max Stress: | N/A |
| % Elongation at Break: | N/A |
| Permeability: | N/A |
| Recommended Coverage: | Metal surfaces – 200 sq ft per gallon Smooth asphalt – 100 sq ft per gallon Modified Bitumen – 100 sq ft per gallon Call American Weatherstar for coverage rate information for other substrates. |
| Min. Surface Application Temp.: | 7.2°C / 45°F. Do not allow to freeze. |
| Drying Time: | 3 hours @ 25°C / 77°F, 50% relative humidity. |
| Packaging: | 5 gallon buckets, 50 gallon drums. |
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