🛠️ Seal smarter, not harder — the duct seal that works as hard as you do!
Rectorseal 81880 is a 1-pound gray duct seal compound designed for professional-grade sealing. Its soft, non-toxic putty formula creates durable, water- and chemical-resistant seals on a variety of surfaces. Moldable and reusable, it’s ideal for HVAC, plumbing, electrical, and general construction applications, trusted by tradesmen for its reliability and safety.
| Material | Putty |
| Brand | Rectorseal |
| Item dimensions L x W x H | 6.5 x 3 x 3 inches |
| Compatible Material | Metal |
| Water Resistance Level | Water Resistant |
| Item Form | Putty |
| UPC | 021449818803 |
| Unit Count | 16.0 Ounce |
| Style | 1 lb |
| Global Trade Identification Number | 00021449818803 |
| Number of Items | 1 |
| Color | Gray |
| Surface Recommendation | Various surfaces |
| Manufacturer | The Rectorseal Corporation |
| Part Number | 81880 |
| Item Weight | 15.8 ounces |
| Product Dimensions | 6.5 x 3 x 3 inches |
| Country of Origin | China |
| Item model number | 81880 |
| Size | 1 Pound (Pack of 1) |
| Item Package Quantity | 1 |
| Number Of Pieces | 1 |
| Special Features | Non-toxic |
| Included Components | Duct Seal Compound |
| Batteries Included? | No |
| Batteries Required? | No |
A**R
Works GREAT!
I used this for a roll around window AC that had some little holes of light coming through. This product worked perfect and easy to apply and use.
R**N
Easy to work with and gets the job done!
Installed a couple mini splits this summer and it came with putty however I didn't have enough to fill up the hole so i purchased these and this is perfect, it's moldable and pliable without breaking. Easy to work with, water resistance and hopefully will help with the insulation.
C**Y
Been looking for this
This thing is exactly what I needed to seal a gap between floor end and outer front shelf of my camper. The gap is hidden inside a closed compartment in the storage, but since I've removed a wall that separated this compartment and the storage space, I needed to make sure no dust or bugs would come in. Worked as planned, it stays in place and you can always push it further for more adhesion or add more if needed. Great solution for that issue I had.
T**Y
Sticks to paper
Does anyone else have trouble getting it unstuck from the plastic wrapping? It's my only complaint. It can be a real PIA!
S**M
Good product!
Used putty to fill in hole where central A/C hose runs into house, and it worked like a charm. Best of all its weather resistant and easy to mold.
K**Y
Best seal ever!!
I really like this seal it is very easy to form and mount in place I'm very pleased with the outcome I would definitely purchase this again.
L**U
A lot For The Price
Great price on this sealant.
E**D
Great product
Awesome product for my needs!! I have a sliding glass door with poor installation. I'm using it as a weather stripping agent around the frame. I'm hoping this will help the cold from coming in and keep cool air from going out in the summer's.
Trustpilot
2 weeks ago
4 days ago
