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🔧 Seal smarter, not harder — the duct seal that works as hard as you do!
RectorSeal 81880 is a 1-pound, gray, non-toxic duct seal putty designed for professional HVAC, plumbing, and electrical applications. It forms a flexible, reusable, air- and water-tight seal that resists water, alcohol, and mild acids/bases without corroding metal or irritating skin. Easy to apply by hand between 25°F and 120°F, this asbestos-free compound is trusted by industry pros and DIYers alike for reliable, versatile sealing on various clean, dry surfaces.
| ASIN | B008A3UG94 |
| Brand | Rectorseal |
| Brand Name | Rectorseal |
| Color | gray |
| Compatible Material | Metal |
| Customer Reviews | 4.8 out of 5 stars 1,486 Your Review |
| Global Trade Identification Number | 00021449818803 |
| Item Dimensions | 16.5 x 7.6 x 7.6 cm |
| Item Form | Liquid |
| Item Weight | 0.45 Kilograms |
| Item dimensions L x W x H | 16.5 x 7.6 x 7.6 cm |
| Manufacturer | The Rectorseal Corporation |
| Material | putty |
| Material Type | putty |
| Model | 81880 |
| Number of Items | 1 |
| Part Number | 81880 |
| Style | 1 lb |
| Style Name | 1 lb |
| Surface Recommendation | Various Surfaces |
| UPC | 021449818803 |
| Unit Count | 1.0 Count |
| Water Resistance Level | Water Resistant |
R**R
great putty
was easy to use for putting around pipes coming out of fridges
Z**T
Much better than spray foam for small gaps!
"I used this to seal around the electrical conduit where it enters my house, and it was so easy to work with. It’s like a soft modeling clay that stays pliable, so you can really pack it into gaps to stop drafts and bugs. Unlike spray foam, it’s not messy and you can actually remove or adjust it later if you need to. Great price for a very effective product!"
K**G
Good stuff, great quality, great feel
Love this stuff works great for my application, the consistency of the product is nice and firm, looks like it's gonna stay flexible for a while and you don't have to worry about it drying out, it's a nice thick product that will be compatible with a lot of your applications. You can use this for a lot of different things, it'll be compatible with so many of your projects ones especially where you can't use grommets because of space constraints or anytime you need a extra seal on something, this stuff is great, most of all it's not supposed to dry out so that makes it really useful.
M**E
Good
Good
G**E
Super fácil de colocar
Tuve que pasar unos cables entre el techo de la cocina y el piso de la sala de arriba, mi temor era que los aromas de la cocina se filtraran, pero no quería usar algo que dejara fijados permanente los cables para cuando necesiten ser cambiados en el futuro. No se filtran los aromas, ni se desprende la masilla, estoy tranquila.
Trustpilot
2 weeks ago
2 months ago