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Red Devil 0846DX F-Seal 181 is a premium fiber-reinforced, water-based duct sealant designed for superior leak-proof sealing of HVAC systems. UL 181 A-M & B-M certified, it works seamlessly on metal, fiberglass, and flexible ducts, offering durable indoor/outdoor protection with fast drying and low VOCs. Trusted by professionals to exceed industry standards, it’s the go-to solution for energy-efficient, long-lasting HVAC performance.
| ASIN | B01I7JVUR2 |
| Best Sellers Rank | #117,036 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #148 in Heating & Cooling Ducting Products |
| Brand | Red Devil |
| Brand Name | Red Devil |
| Color | Gray |
| Compatible Material | Fiberglass, Metal |
| Customer Reviews | 4.5 out of 5 stars 78 Reviews |
| Global Trade Identification Number | 00075339003480 |
| Included Components | Duct Sealant |
| Item Dimensions | 5.1 x 5.1 x 28.6 centimeters |
| Item Form | Liquid |
| Item Type Name | Water Based Duct Sealant |
| Item Weight | 1.05 Pounds |
| Item dimensions L x W x H | 5.1 x 5.1 x 28.6 centimeters |
| Item weight | 1.05 Pounds |
| Manufacturer | Red Devil |
| Material | White |
| Material Type | White |
| Model | 0846DX |
| Number of Items | 1 |
| Number of Packs | 1 |
| Part Number | 0846DX |
| Style | F Seal |
| Style Name | F Seal |
| Surface Recommendation | Metal |
| UPC | 075339003480 |
| Unit Count | 1 Count |
| Water Resistance Level | Water Resistant |
| Water resistance level | Water Resistant |
J**7
Dries fast/dull med gray color
Update: The Venus have held up well and still almost two years later look so much sturdier and new!! I used this to seal my mobile home vents after applying duct vent tape to seal them up. For my personal project, I wish I would have gotten the bucket instead of the caulking dispenser tube as I needed more and it would have been easier to work with. This tube lasted for eight vents but I may slather more on when I get another tube for my last three vents since I’ll have extra to get rid of. The color is a dull gray and when I got it on my hands a few times, I definitely had to scrub under water with soap to get it off. It scraped off the floor and other surfaces easily like a rubber glue which was nice. I will try and update after we turn the heat on this winter to tell how it’s holding up.
S**B
Red devil did it!
The product is good for what it is. It does what the professional stuff does. If you are sealing anything like air duct it is always recommended to use a fiber base around the area of leakage.
M**E
Easy to work with
Great product
A**R
Added clisure
This was so worth getting, had a little job and didn’t need a whole bucket. Follow instructions and it does the job.
J**B
Nice and easy to use.
Made my duct job very easy to finish. Even overhead the thickness worked quite well. So far no cracks or failures after a week.
Trustpilot
2 months ago
5 days ago