ExoAir Primer
VOC-Compliant Adhesive Primer for Air Barrier Systems
ExoAir® Primer is a fast-drying, VOC-compliant adhesive primer specifically engineered for use with the ExoAir line of air barrier systems. It ensures strong adhesion and complete compatibility with all required components in the assembly. Designed to optimize workflow and performance, ExoAir Primer prepares porous and non-porous substrates, ensuring the ExoAir membranes adhere securely and effectively. Its quick tack time allows for minimal disruption on the job site and efficient installations in both new construction and retrofit projects.
Key Benefits of ExoAir Primer
- Full System Compatibility: Works seamlessly with all ExoAir air barrier membranes and components.
- Fast Tack Time: Dries in just 15 to 30 minutes, minimizing delays on-site.
- Reliable Adhesion: Prepares surfaces for long-term bonding with superior penetration and grip.
- VOC Compliant: Meets environmental standards for safer indoor and outdoor use.
Common Applications
- Priming substrates before ExoAir 110 membrane installation
- Compatible with concrete, CMU, gypsum, and wood sheathing
- Suitable for commercial and residential air barrier applications
Packaging & Installation
ExoAir Primer is supplied in pails for roller or brush application. It is applied as a thin, even coat and dries quickly based on ambient conditions. Coverage rates vary depending on the porosity and texture of the substrate. The product enables rapid sequencing of trades and prevents project delays by allowing for same-day membrane application.
Product Properties
| Property | Value |
|---|---|
| Tack Time | 15 to 30 min |
| Coverage Rate | 250 ft²/gal (6 m²/L), depending on porosity and texture of substrate |
Also explore EnviroDri Window & Door for complementary flashing applications. Visit Tremco Sealants for complete air barrier solutions.




