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1 Gallon Bucket of Mastic Duct Sealant
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Mastic compound is used to professionally seal duct work. Sealing duct work saves money on heating and cooling costs by preventing air leaks. Also available in 10.5oz cartridge. - For use on sheet metal, ductboard and flexible duct
- Use indoors or outdoors
- For low to high pressure systems
- Waterproof, resistant to ultraviolet light and remains flexible when cured
- Non-sagging formula
- Spreads easily
- Excellent adhesion
- Meets NAIMA requirements
- Meets UL 181A-M and 181B-M standards
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