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ShurMASTIC® butyl foil tape used for airtight and moisture-free sealing of Class 1 Flex Duct, sheet metal and duct wrap vapor barriers, and is also approved for subgrade application on PVC-coated duct. A paintable, UL 181B-FX Listed mastic on a roll for indoor or outdoor use, SF 686 is designed with a butyl rubber adhesive system that can withstand wide temperature variances once applied.
| Adhesive Type | : | rubber |
| Color | : | Silver |
| Length | : | 100 yd |
| Material | : | Butyl Foil |
| Thickness | : | 17.0 mil |
| Type | : | Butyl Foil |
| Width | : | 3 in |
- Indoor/outdoor mastic foil tape
- UL 181B-FX Listed - clearly printed on the tape for quick identification
- Instant, water-resistant grip to most surfaces
- Paintable with paint recommended for aluminum
- Contains no asbestos, CFCs or PCBs