---
product_id: 296902443
title: "0846DW F-Seal 181 Fiber Reinforced Water Based Duct Sealant, 10.1 oz, White, 24 Pack"
brand: "red devil"
price: "€ 351.37"
currency: EUR
in_stock: true
reviews_count: 6
url: https://www.desertcart.gr/products/296902443-0846dw-f-seal-181-fiber-reinforced-water-based-duct-sealant
store_origin: GR
region: Greece
---

# Fast-drying, low VOC formula Weather-resistant for indoor/outdoor use UL 181 A-M & B-M certified 0846DW F-Seal 181 Fiber Reinforced Water Based Duct Sealant, 10.1 oz, White, 24 Pack

**Brand:** red devil
**Price:** € 351.37
**Availability:** ✅ In Stock

## Summary

> 🔥 Seal smart, save energy, and stay ahead of the HVAC game!

## Quick Answers

- **What is this?** 0846DW F-Seal 181 Fiber Reinforced Water Based Duct Sealant, 10.1 oz, White, 24 Pack by red devil
- **How much does it cost?** € 351.37 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.gr](https://www.desertcart.gr/products/296902443-0846dw-f-seal-181-fiber-reinforced-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 environments.
- • **Leak-Proof HVAC Mastery:** Fiber-reinforced formula guarantees airtight, energy-saving duct seals.
- • **Industry-Leading Standards:** Exceeds SMACNA Pressure and Sealing Classes for professional-grade reliability.
- • **Built to Brave the Elements:** Weather-resistant durability ensures lasting performance indoors and out.
- • **Universal HVAC Compatibility:** Certified for metal, fiberglass, and flexible ducts—one sealant to rule them all.

## Overview

Red Devil 0846DW F-Seal 181 is a premium fiber-reinforced, water-based duct sealant designed for superior HVAC sealing. UL 181 A-M & B-M certified, it works on all duct types and withstands indoor and outdoor conditions. Its fast-drying, low VOC formula ensures quick, safe application while exceeding industry standards for pressure and sealing. Ideal for professionals seeking durable, energy-efficient HVAC solutions.

## Description

Red Devil F-Seal 181 is a premium fiber-reinforced water-based duct sealant engineered for superior performance in all HVAC systems. This versatile sealant is UL 181 A-M & B-M certified, making it suitable for metal, fiberglass, and flexible ducts. Its fast-drying, low VOC formula ensures quick application and safety in sensitive environments. F-Seal 181 exceeds all SMACNA Pressure and Sealing Classes, providing unmatched sealing capabilities for high, medium, and low-pressure HVAC systems. The durable, weather-resistant formula is perfect for both indoor and outdoor use, resisting mold, mildew, and UV damage. It contributes to LEED EQ Credit 4.1 and meets CA Dept. of Public Health Emission Requirements V1.1, 2011. This USA-made product offers excellent adhesion, flexibility, and can be painted after full cure. For best results, apply in temperatures between 40°F and 110°F, allowing 24-72 hours drying time before pressure testing. F-Seal 181 is your go-to solution for efficient, long-lasting HVAC duct sealing.

## 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 |
|---------------|-------|
| Material | Acrylic |
| Brand | Red Devil |
| Style | 24 - Pack |
| Item Weight | 25.9 Pounds |
| Item dimensions L x W x H | 12 x 8 x 12 inches |
| Water Resistance Level | Water Resistant |
| Item Form | Paste |
| Unit Count | 24.0 Count |
| Global Trade Identification Number | 10075339024697 |
| Number of Items | 24 |
| Color | White |
| Surface Recommendation | Metal |
| Manufacturer | Red Devil |
| Part Number | 0846DW24 |
| Item Weight | 25.9 pounds |
| Product Dimensions | 12 x 8 x 12 inches |
| Item model number | 0846DW |
| Size | 10.1 Oz |
| Item Package Quantity | 1 |
| Included Components | Duct Sealant |
| Batteries Required? | No |

## Product Details

- **Material:** Acrylic
- **Brand:** Red Devil
- **Style:** 24 - Pack
- **Item Weight:** 25.9 Pounds
- **Item dimensions L x W x H:** 12 x 8 x 12 inches

## Images

![0846DW F-Seal 181 Fiber Reinforced Water Based Duct Sealant, 10.1 oz, White, 24 Pack - Image 1](https://images-na.ssl-images-amazon.com/images/G/01/x-locale/common/grey-pixel.gif)

## Available Options

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ 5.0 out of 5 stars







  
  
    Dries fast/dull med gray color
  

*by J***7 on Reviewed in the United States on August 18, 2023*

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.

### ⭐⭐⭐⭐⭐ 5.0 out of 5 stars







  
  
    Applies easily
  

*by A***. on Reviewed in the United States on October 8, 2021*

This applies like any other caulk you're familiar with. It holds well and sets very well.

### ⭐⭐⭐⭐⭐ 5.0 out of 5 stars







  
  
    Nice and easy to use.
  

*by J***B on Reviewed in the United States on July 11, 2020*

Made my duct job very easy to finish.  Even overhead the thickness worked quite well. So far no cracks or failures after a week.

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**Shop now:** [https://www.desertcart.gr/products/296902443-0846dw-f-seal-181-fiber-reinforced-water-based-duct-sealant](https://www.desertcart.gr/products/296902443-0846dw-f-seal-181-fiber-reinforced-water-based-duct-sealant)

---

*Product available on Desertcart Greece*
*Store origin: GR*
*Last updated: 2026-01-25*