McGill AirSeal Uni-Mastic 181
by McGill AirSeal
Professional-grade duct sealer formulated for low-, medium-, and high-pressure commercial and industrial duct systems.
4.4 - Fair Custom · Contact for pricing
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Media
www.mcgillairseal.com
Overview
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.
FSH Score Breakdown
Ease of Use 7.5
Features 5.0
Support 6.0
Value 7.0
Integrations 0.5
AI Capabilities 0.0
Customer Reviews
Key Features
| Feature | Value |
|---|---|
| Aerosol Sealing Technology | ❌ |
| Manual Mastic Application | ✅ |
| In-Place Sealing | ✅ |
All Features
| Feature | Value |
|---|---|
| Pressure Testing Compatible | ✅ |
| Fire Rated Certification | ❌ |
| Flexible Substrate Adhesion | ✅ |
| Low VOC Formulation | ✅ |
| Rapid Cure Time | ❌ |
| Large Scale Project Support | ✅ |
| Residential Only Compatible | ❌ |
Pricing
- Model
- Custom
- Starting at
- Contact for pricing
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