McGill AirSeal Uni-Mastic 181
by McGill AirSeal
Professional-grade duct sealer formulated for low-, medium-, and high-pressure commercial and industrial duct systems.
Highlights
Media

About This Product
Uni-Mastic 181 is a water-based duct sealer from McGill AirSeal (est. 1951) for sealing joints and seams on sheet metal, flexible, and fiberglass ductboard systems. Provides excellent adhesion to galvanized metal and is recommended for indoor and outdoor applications. Distributed through a nationwide network of HVAC supply houses.
Capabilities
How this product is delivered and what's included out of the box.
- Mobile app
- Not available
- Free trial
- No
- Free tier
- No
- Public API
- No
- Deployment
- On Premise
FSH Score Breakdown
Customer Reviews
Features
Compliance & Safety1feature
Pricing
- Model
- Custom
- Starting at
- Contact for pricing
Similar Duct Sealing Services Tools
Compare all →Other tools in the same category. Compare to find the best fit.
Retrotec DucTester
Retrotec
Professional duct leakage testing equipment for HVAC contractors and energy auditors with 30+ years of precision.
RCD #6 Mastic Duct Sealant
RCD Corporation
Fiber-reinforced, UL-listed water-based mastic preferred by professional HVAC and weatherization contractors nationwide.
Vent Cap Systems Duct Testing Supplies
Vent Cap Systems
Complete duct leakage testing supplies including duct blasters, vent caps, and HERS rating equipment for contractors.
Aeroseal
Aeroseal LLC
Patented aerosol duct sealing technology reducing leakage by up to 95% with computerized verification, deployed in 90+ countries.