



🛡️ Seal smarter, not harder — the pro’s go-to duct seal putty!
RectorSeal 81880 is a 1-pound gray duct seal compound designed for professional trades and home use. This soft, non-toxic putty forms a reliable air- and water-tight seal on most clean, dry surfaces, functioning effectively between 25°F and 120°F. Resistant to water, alcohol, and mild acids, it’s asbestos-free and safe on plastics and metals. Reusable and paintable immediately after application, it’s a versatile, trusted solution for HVAC, plumbing, electrical, and general sealing tasks.










| ASIN | B008A3UG94 |
| Best Sellers Rank | #26,986 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #173 in Hardware Sealers |
| Brand | Rectorseal |
| Brand Name | Rectorseal |
| Color | Gray |
| Compatible Material | Metal |
| Customer Reviews | 4.8 out of 5 stars 1,339 Reviews |
| Global Trade Identification Number | 00021449818803 |
| Included Components | Duct Seal Compound |
| Item Dimensions | 16.5 x 7.6 x 7.6 centimeters |
| Item Form | Putty |
| Item Type Name | Duct Seal Compound |
| Item dimensions L x W x H | 16.5 x 7.6 x 7.6 centimeters |
| Item form | Putty |
| Item height | 3 inches |
| Manufacturer | The Rectorseal Corporation |
| Material | Putty |
| Material Type | Putty |
| Style | 1 lb |
| Style Name | 1 lb |
| Surface Recommendation | Various surfaces |
| UPC | 021449818803 |
| Unit Count | 16 Grams |
| Water Resistance Level | Water Resistant |
| Water resistance level | Water Resistant |
R**R
great putty
A**A
Great product to have around
M**E
Good
S**E
Great Product!
P**Y
Sealed around my furnace and it did a great job - I think it will last a long time.
Trustpilot
1 month ago
2 months ago