---
product_id: 294140587
title: "Red Devil 0841DX F Seal 181 Water Based Duct Sealant, 1 gallon, Gray"
brand: "red devil"
price: "S/.1239"
currency: PEN
in_stock: false
category: "Red Devil"
url: https://www.desertcart.pe/products/294140587-red-devil-0841dx-f-seal-181-water-based-duct-sealant
store_origin: PE
region: Peru
---

# Fast-drying, low VOC formula Weather-resistant for indoor/outdoor use UL 181 A-M & B-M certified Red Devil 0841DX F Seal 181 Water Based Duct Sealant, 1 gallon, Gray

**Brand:** red devil
**Price:** S/.1239
**Availability:** ❌ Out of Stock

## Summary

> 🔧 Seal smart, save energy, and never sweat a leak again!

## Quick Answers

- **What is this?** Red Devil 0841DX F Seal 181 Water Based Duct Sealant, 1 gallon, Gray by red devil
- **How much does it cost?** S/.1239 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.pe](https://www.desertcart.pe/products/294140587-red-devil-0841dx-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:** Low VOC, quick-dry formula keeps your workspace healthy and your project on schedule.
- • **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 results.
- • **Built to Brave the Elements:** Weatherproof and mold-resistant for reliable indoor and outdoor performance.
- • **Universal Duct Compatibility:** Certified for metal, fiberglass, and flexible ducts—one sealant to rule them all.

## Overview

Red Devil 0841DX 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/outdoor conditions with weatherproof durability. Its fast-drying, low VOC formula ensures safe, efficient application while exceeding SMACNA industry standards for pressure and sealing. Made in the USA, it offers excellent adhesion, flexibility, and paintability, making it the go-to solution for energy-efficient, long-lasting HVAC duct sealing.

## Description

Red Devil 0841DX F Seal 181 Water Based Duct Sealant, 1 gallon, Gray : desertcart.in: Industrial & Scientific

## 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 | B01I7JVUO0 |
| Best Sellers Rank | #264,785 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #1,013 in Hardware Sealers |
| Brand | Red Devil |
| Colour | Gray,Red |
| Country of Origin | USA |
| Generic Name | Water Based Duct Sealant, 1 Gallon |
| Global Trade Identification Number | 00075339003466 |
| Included Components | Duct Sealant |
| Item Dimensions LxWxH | 17.8 x 17.8 x 20.3 Centimeters |
| Item Form | Paste |
| Item Weight | 454 g |
| Item dimensions L x W x H | 17.8 x 17.8 x 20.3 Centimeters |
| Item model number | 0841DX |
| Manufacturer | Red Devil |
| Material | Acrylic |
| Net Quantity | 128.0 Milliliters |
| Number of Items | 1 |
| Product Dimensions | 17.78 x 17.78 x 20.32 cm; 453.59 g |
| Style | 1 - Pack |
| Surface Recommendation | Metal |
| UPC | 075339003466 |
| Water Resistance Level | Waterproof |

## Product Details

- **Brand:** Red Devil
- **Item Weight:** 1 Pounds
- **Item dimensions L x W x H:** 17.8 x 17.8 x 20.3 Centimeters
- **Material:** Acrylic
- **Style:** 1 - Pack

## Images

![Red Devil 0841DX F Seal 181 Water Based Duct Sealant, 1 gallon, Gray - Image 1](https://m.media-amazon.com/images/I/41ZqU0jfMgL.jpg)
![Red Devil 0841DX F Seal 181 Water Based Duct Sealant, 1 gallon, Gray - Image 2](https://m.media-amazon.com/images/I/41mA24pdQ+L.jpg)
![Red Devil 0841DX F Seal 181 Water Based Duct Sealant, 1 gallon, Gray - Image 3](https://m.media-amazon.com/images/I/512U2FCr73L.jpg)
![Red Devil 0841DX F Seal 181 Water Based Duct Sealant, 1 gallon, Gray - Image 4](https://m.media-amazon.com/images/I/51EFF1j-LOL.jpg)
![Red Devil 0841DX F Seal 181 Water Based Duct Sealant, 1 gallon, Gray - Image 5](https://m.media-amazon.com/images/I/51mrtVaX86L.jpg)

## Questions & Answers

**Q: Is the "F" in the bucket like a liquid (brushable) or more like a paste?**
A: It's not quite like a paste but it's not liquidity either and doesn't drip so you can put it on thick.  I love this stuff, not much of a odor as well. I used a cheap chip brush to spread it.

**Q: I'm redoing all the flex ductwork (insulated kind) in a crawl space. should i use the d our f sealant ?**
A: You could use either one.  Both are perfect for what you are doing, but I would use the F-Seal because it has fibers in it.

**Q: Is this safe to use and will it work on gas dryer duct work joints (inside the fittings and outside)?**
A: Sorry, this should not be used on a dryer. It is for HVAC only. Thanks.

**Q: How long do I need to wait before turning on the A/C after application?**
A: Hi, you should wait 24 hours. Thanks....

## Frequently Bought Together

- Red Devil 0841DX F-Seal 181 Fiber Reinforced Water Based Duct Sealant, 1 Gallon, Gray, Made in USA
- Pro Grade - Chip Paint Brushes - 12 Ea 2 Inch Chip Paint Brush Light Brown

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**Shop now:** [https://www.desertcart.pe/products/294140587-red-devil-0841dx-f-seal-181-water-based-duct-sealant](https://www.desertcart.pe/products/294140587-red-devil-0841dx-f-seal-181-water-based-duct-sealant)

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*Product available on Desertcart Peru*
*Store origin: PE*
*Last updated: 2026-01-31*