---
product_id: 420559211
title: "0846DX F Seal 181 Water Based Duct Sealant, 10.1 Oz., Gray"
brand: "red devil"
price: "₨20007"
currency: LKR
in_stock: true
reviews_count: 5
category: "Red Devil"
url: https://www.desertcart.lk/products/420559211-0846dx-f-seal-181-water-based-duct-sealant-10-1
store_origin: LK
region: Sri Lanka
---

# Fiber-reinforced leak-proof seal Weather-resistant indoor/outdoor durability UL 181 A-M & B-M certified 0846DX F Seal 181 Water Based Duct Sealant, 10.1 Oz., Gray

**Brand:** red devil
**Price:** ₨20007
**Availability:** ✅ In Stock

## Summary

> 🔧 Seal smart, save energy, and stay ahead with Red Devil F-Seal!

## Quick Answers

- **What is this?** 0846DX F Seal 181 Water Based Duct Sealant, 10.1 Oz., Gray by red devil
- **How much does it cost?** ₨20007 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.lk](https://www.desertcart.lk/products/420559211-0846dx-f-seal-181-water-based-duct-sealant-10-1)

## 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

- • **Seal Like a Pro:** Fiber-reinforced formula guarantees leak-free HVAC performance and energy savings.
- • **Certified Confidence:** UL 181 A-M & B-M certification means trusted compatibility with all duct types.
- • **Fast & Safe Application:** Quick-drying with low VOCs ensures efficient, eco-conscious sealing.
- • **Industry-Leading Standards:** Exceeds SMACNA pressure and sealing classes for top-tier HVAC reliability.
- • **Built to Brave the Elements:** Weather-resistant for reliable indoor and outdoor use, no matter the conditions.

## 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 offers fast drying and low VOCs for safe, efficient indoor and outdoor use. Exceeding industry standards, this 10.1 oz gray acrylic sealant ensures durable, energy-efficient HVAC performance.

## 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
Review: Good for all around applications

## 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 |
| Best Sellers Rank | #268,595 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #1,027 in Hardware Sealers |
| 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 1,222 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 |
| Material | Acrylic |
| Material Type | Acrylic |
| 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:** 1.1 Pounds
- **Item dimensions L x W x H:** 2 x 2 x 11.25 inches
- **Material:** Acrylic
- **Style:** 1 - Pack

## Images

![0846DX F Seal 181 Water Based Duct Sealant, 10.1 Oz., Gray - Image 1](https://m.media-amazon.com/images/I/51GL4IS8GML.jpg)

## Available Options

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

## Customer Reviews

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



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



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



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**Shop now:** [https://www.desertcart.lk/products/420559211-0846dx-f-seal-181-water-based-duct-sealant-10-1](https://www.desertcart.lk/products/420559211-0846dx-f-seal-181-water-based-duct-sealant-10-1)

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*Product available on Desertcart Sri Lanka*
*Store origin: LK*
*Last updated: 2026-03-01*