H&B Primer - SA Water-Based Primer for Self Adhering Flashing
H&B Primer - SA is a water-based, modified polymer primer specifically designed to promote superior adhesion of Hohmann & Barnard self-adhered flashing membranes. It can be applied to a wide range of substrates, including CMU, plywood, OSB, and glass-faced sheathing. Its milky white formula dries clear and remains permanently pressure-sensitive, strengthening over time for lasting performance. With fast drying times and VOC compliance, this primer supports quick, safe, and reliable installation in both new construction and retrofit applications.
Features
- Water-based, modified polymer primer for use with self-adhering flashing membranes.
- Compatible with CMU, plywood, OSB, and glass-faced sheathing panels.
- Milky white in appearance; dries to a clear finish.
- Dries in 20–30 minutes depending on conditions.
- Remains permanently pressure-sensitive and gains bond strength over time.
- Applies easily using brush, roller, squeegee, or spray equipment.
- Covers 350–450 sq ft/gal on sheathing panels, 250–350 sq ft/gal on CMU and concrete.
- VOC-compliant and contains no flammable or hazardous solvents.
- Low odor and safe for indoor or outdoor use.
- Packaged in 5-gal pails for professional-scale jobs.
H&B Primer - SA Water-Based Primer for Self Adhering Flashing Specifications
| Specification | Details |
|---|---|
| Product type | Water-based modified polymer primer |
| Application methods | Brush, roller, squeegee, or spray equipment |
| Color | Milky white (dries to clear) |
| Coverage rate | 350–450 sq ft/gal on sheathing panels, 250–350 sq ft/gal on CMU and concrete |
| Drying time | 20–30 minutes or until tacky |
| Adhesion | Permanently pressure-sensitive; strengthens over time |
| VOC compliance | Yes (low odor, no hazardous or flammable solvents) |
| Storage temperature | 40°F – 100°F (4°C – 38°C) |
| Shelf life | 1 year (unopened containers) |
| Packaging | 5-gal pails |
NOTE: Store in original sealed containers above 40°F (4°C) and below 100°F (38°C). Unused primer can be cleaned with water before curing; use a citrus-based cleaner for cured primer.