Ensuring optimal adhesion for self-adhering membranes is crucial for the long-term performance and integrity of any building envelope. The Protecto BT-Primer, available from A1A Wholesale Supply, is specifically formulated to prepare challenging substrates, providing a robust and reliable bond for Protecto Wrap’s advanced waterproofing and air/vapor barrier systems.
BT-Primer is a high-tack, SBS rubber-based primer that is highly versatile. It is recommended for use under a wide range of Protecto Wrap products, including:
- BT25XL Window & Door Flashing Tape
- PS45 Commercial Grade Window and Door Flashing
- PS45 Butyl
- BT20XL Window and Door Butyl Flashing Tape / Air/Vapor Barrier Butyl Membrane
- Protecto Flex Window & Door Flashing Tape
- PW 100/40 Air/Vapor Barrier
- PW 100/60 Air/Vapor Barrier
- EIFS/Stucco products
- JS I&WG HT, JS I&WG HT25, JS I&WG HT Butyl (Horizontal use, such as peel and stick ice and water guard applications.)
A key feature of BT-Primer is its moisture tolerance when used over DensGlass Gold; it is suitable for use on moist or damp DensGlass Gold surfaces. This primer is particularly effective for applications where surface temperatures are below 45∘F. It provides excellent adhesion to a variety of substrates, including DensGlass Gold, some OSB boards, metal, wood, dry concrete, and dry masonry.
The primer has a quick tack-free time of approximately 20 to 45 minutes, which helps to maintain efficient project schedules. Some bubbling may occur in the primer as it cures, but this has no effect on performance and will smooth out upon membrane application.
Key Features and Benefits for Contractors:
- Enhanced Adhesion: Provides a strong, reliable bond for Protecto Wrap membranes.
- Cold Weather Performance: Recommended for applications below 45∘F.
- Moisture Tolerant: Can be used on moist or damp DensGlass Gold.
- Wide Substrate Compatibility: Effective on DensGlass Gold, OSB, metal, wood, and concrete/masonry.
- Fast Tack-Free Time: Allows for quicker membrane application.
- VOC Compliant: Meets environmental standards.
- Versatile Use: Compatible with both butyl and rubberized asphalt Protecto Wrap products.
Directions for Use:
- Preparation: The surface must be clean, dry, and free of dirt, dust, loose concrete, or other contaminants that may adversely affect adhesion. Thinning of the primer is not recommended.
- Application:
- Apply primer to all surfaces by roller or brush, ensuring a uniform coat.
- Primed surfaces should be free of runs, puddles, or excessive primer, as this could cause blistering. Brush or roll out all primer puddles or drips immediately.
- Prime only as much area as can be covered in half a day’s work. Re-prime areas not covered within this time with a light coat of BT-Primer.
Storage:
- Store in accordance with regulations for the storage of flammable liquids.
- Store between 40∘F (4∘C) and 120∘F (49∘C) in original unopened containers, out of weather and direct sunlight.
- Store in a dry, well-ventilated area away from heat and all sources of ignition. Store away from oxidizers and acids.
- Replace lids on opened containers when not in use to lessen solvent evaporation.
Safety Precautions:
- Flammable: Contains volatile solvents. Keep away from heat, sparks, and flame. Do not store in direct sunlight.
- Wear gloves and safety glasses.
- Ensure the work area is well ventilated.
- Clean up with mineral spirits, xylene, toluene, or acetone.
Product Details:
- Brand: Protecto Wrap
- Product Name: BT-Primer
- Type: SBS Rubber-Based Primer
- VOC Compliant: Yes
- Adhesion (to DensGlass Gold, OSB, Metal, Wood, Dry Concrete, Dry Masonry): Excellent
- Tack Free Time: 20-45 minutes
- Coverage: 150 square feet per gallon (depending on porosity of the substrate)
- Recommended Application Temperature: Below 45∘F for specific applications, or as needed to ensure optimal adhesion.
- Storage Temperature: 40∘F (4∘C) to 120∘F (49∘C)
- Packaging:
- 1 U.S. Gallon (4 gallons/carton, 9 lbs weight per carton)
- 5 U.S. Gallon Pail (1 pail, 46 lbs weight)
