---
product_id: 420559211
title: "Red Devil 0846DX F Seal 181 Water Based Duct Sealant, 10.1 Oz., Gray"
brand: "red devil"
price: "155.25 DT"
currency: TND
in_stock: true
reviews_count: 5
category: "Red Devil"
url: https://www.desertcart.tn/products/420559211-red-devil-0846dx-f-seal-181-water-based-duct-sealant
store_origin: TN
region: Tunisia
---

# Fast-drying, low VOC formula Weather-resistant for indoor/outdoor use UL 181 A-M & B-M certified Red Devil 0846DX F Seal 181 Water Based Duct Sealant, 10.1 Oz., Gray

**Brand:** red devil
**Price:** 155.25 DT
**Availability:** ✅ In Stock

## Summary

> 🔧 Seal smart, save energy, and stay ahead of the curve!

## Quick Answers

- **What is this?** Red Devil 0846DX F Seal 181 Water Based Duct Sealant, 10.1 Oz., Gray by red devil
- **How much does it cost?** 155.25 DT with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/420559211-red-devil-0846dx-f-seal-181-water-based-duct-sealant)

## Best For

- red devil enthusiasts

## Why This Product

- Trusted red devil brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Fast & Safe Application:** Quick-dry, low VOC formula means less downtime and healthier indoor air quality.
- • **Leak-Proof HVAC Mastery:** Fiber-reinforced formula guarantees airtight sealing, boosting energy efficiency and cutting costs.
- • **Industry-Leading Standards:** Exceeds SMACNA pressure and sealing classes for professional-grade reliability.
- • **Built to Brave the Elements:** Weather-resistant durability ensures lasting performance inside and out, no matter the climate.
- • **Universal HVAC Compatibility:** Certified for metal, fiberglass, and flexible ducts—one sealant to rule them all.

## Overview

Red Devil 0846DX F Seal 181 is a premium fiber-reinforced, water-based duct sealant designed for superior leak-proof sealing of all HVAC duct types. UL 181 A-M & B-M certified and weather-resistant, it delivers fast drying with low VOCs for safer, efficient indoor and outdoor use. Trusted by professionals, it surpasses industry standards to optimize HVAC performance and energy savings.

## Description

Red Devil F-Seal 181 is a specially formulated fiber reinforced water based duct sealant/mastic for indoor/outdoor use. Suitable for pressure sealing all types of HVAC duct systems including metal, fiberglass ductboard and flexduct. Made in USA. FEATURES: LEED EQ 4.1 Compliant Indoor/Outdoor Excellent Adhesion Excellent Flexibility Low VOC USE ON: Metal and Flexible Ducts Vents Air Conditioners HVAC Appliances SPECIFICATIONS: UL 181 A-M & B-M certified and can be used on all types of HVAC ductwork. ABOUT RED DEVIL: Red Devil is still a privately-owned family business with state-of-the-art manufacturing facilities in Pryor, Oklahoma. Click on the Red Devil link at the top of this page to visit our Brand Store.

Review: Works great - I sealed my ducts in the basement and now my basement is not that cold anymore in the summer when my A/C is running. Now I know how much money I had wasted for the last 10 years :-). Now my upstair has more air flow and cooler.
Review: Good for all around applications - I bought this to fill a small ducting leak in my a/c but also applied it to my house when doing stucco repairs on holes left behind by the last sprinkler timer on the outside of my house. It dried perfectly and painted over very well. I docked it a star because I noticed the canister developed a leak while dispensing the contents on the first use. I wasn't using much pressure with the caulk gun so not sure why it happened so easily. However, it did seal itself so I can continue using it. The packaging needs some improvement, though.

## Features

- SUPERIOR SEALING: Fiber-reinforced formula ensures leak-free HVAC systems, improving energy efficiency and performance
- VERSATILE APPLICATION: UL 181 A-M & B-M certified for use on all types of HVAC ductwork, including metal, fiberglass, and flexible ducts
- INDOOR/OUTDOOR DURABILITY: Weather-resistant sealant withstands various conditions, making it ideal for both interior and exterior use
- FAST-DRYING & LOW VOC: Quick application and reduced drying time, with low volatile organic compounds for safer use in sensitive environments
- EXCEEDS INDUSTRY STANDARDS: Surpasses all SMACNA Pressure and Sealing Classes, ensuring top-quality performance for your HVAC systems

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B01I7JVUR2 |
| Brand | Red Devil |
| Brand Name | Red Devil |
| Colour | Gray,Red |
| Compatible Material | Metal |
| Country of Publication | USA |
| Customer Reviews | 4.4 out of 5 stars 1,246 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, 10.1 oz |
| Item Weight | 476 g |
| Item dimensions L x W x H | 5.1 x 5.1 x 28.6 Centimeters |
| Manufacturer | Red Devil |
| Manufacturer Part Number | 0846DX |
| Material | Acrylic |
| Material Type | Acrylic |
| Model | 0846DX |
| Number of Items | 1 |
| Style | F Seal |
| Style Name | F Seal |
| Surface Recommendation | Metal |
| UPC | 075339003480 |
| Unit Count | 1.0 Count |
| Water Resistance Level | Water Resistant |

## Product Details

- **Brand:** Red Devil
- **Item Weight:** 1.05 Pounds
- **Item dimensions L x W x H:** 2 x 2 x 11.25 inches
- **Material:** Acrylic
- **Style:** 1 - Pack

## Images

![Red Devil 0846DX F Seal 181 Water Based Duct Sealant, 10.1 Oz., Gray - Image 1](https://m.media-amazon.com/images/I/51GL4IS8GML.jpg)
![Red Devil 0846DX F Seal 181 Water Based Duct Sealant, 10.1 Oz., Gray - Image 2](https://m.media-amazon.com/images/I/61DR9w5x7fL.jpg)
![Red Devil 0846DX F Seal 181 Water Based Duct Sealant, 10.1 Oz., Gray - Image 3](https://m.media-amazon.com/images/I/61wXviPRg2L.jpg)
![Red Devil 0846DX F Seal 181 Water Based Duct Sealant, 10.1 Oz., Gray - Image 4](https://m.media-amazon.com/images/I/61g4OiMBuXL.jpg)
![Red Devil 0846DX F Seal 181 Water Based Duct Sealant, 10.1 Oz., Gray - Image 5](https://m.media-amazon.com/images/I/71BJyuDkMZL.jpg)

## Available Options

This product comes in different **Size, Style** options.

## Customer Reviews

### ⭐⭐⭐⭐ Works great
*by H***. on 26 July 2020*

I sealed my ducts in the basement and now my basement is not that cold anymore in the summer when my A/C is running. Now I know how much money I had wasted for the last 10 years :-). Now my upstair has more air flow and cooler.

### ⭐⭐⭐⭐ Good for all around applications
*by S***G on 2 October 2020*

I bought this to fill a small ducting leak in my a/c but also applied it to my house when doing stucco repairs on holes left behind by the last sprinkler timer on the outside of my house. It dried perfectly and painted over very well. I docked it a star because I noticed the canister developed a leak while dispensing the contents on the first use. I wasn't using much pressure with the caulk gun so not sure why it happened so easily. However, it did seal itself so I can continue using it. The packaging needs some improvement, though.

### ⭐⭐⭐⭐⭐ great buy
*by J***T on 11 March 2025*

great buy great buy great buy

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*Product available on Desertcart Tunisia*
*Store origin: TN*
*Last updated: 2026-09-09*