---
product_id: 14093109
title: "Red Devil 0841DS RD-DS 181 Acrylic Latex Duct Sealant, 1/2 Gallon, Gray"
brand: "red devil"
price: "€ 94.52"
currency: EUR
in_stock: true
reviews_count: 13
category: "Red Devil"
url: https://www.desertcart.fi/products/14093109-red-devil-0841ds-rd-ds-181-acrylic-latex-duct-sealant
store_origin: FI
region: Finland
---

# Water resistant Strong metal-to-metal bond Permanent flexibility Red Devil 0841DS RD-DS 181 Acrylic Latex Duct Sealant, 1/2 Gallon, Gray

**Brand:** red devil
**Price:** € 94.52
**Availability:** ✅ In Stock

## Summary

> 🔧 Seal smart, save energy, and stay leak-free with Red Devil!

## Quick Answers

- **What is this?** Red Devil 0841DS RD-DS 181 Acrylic Latex Duct Sealant, 1/2 Gallon, Gray by red devil
- **How much does it cost?** € 94.52 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.fi](https://www.desertcart.fi/products/14093109-red-devil-0841ds-rd-ds-181-acrylic-latex-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

- • **Safety First:** Non-flammable and safe for enclosed spaces, giving you peace of mind during application.
- • **Seal with Confidence:** Permanently flexible acrylic latex formula ensures lasting elasticity and water resistance.
- • **Boost HVAC Efficiency:** Seals leaks that can cause up to 20% energy loss, saving you money and enhancing comfort.
- • **No More Discoloration:** Cured sealant maintains its gray tone over time, keeping your repairs looking professional.
- • **Versatile Application:** Perfect for both interior and exterior use on metal duct joints and flexible tubing.

## Overview

Red Devil 0841DS RD-DS 181 Acrylic Latex Duct Sealant is a 1/2 gallon gray, water-based paste designed for medium to high-pressure HVAC duct systems. It offers permanent flexibility, superior water resistance, and a strong adhesive grip on metal joints. Non-flammable and discoloration resistant, this US-made sealant improves energy efficiency by preventing air leaks, making it a trusted choice for professional-grade duct repairs.

## Description

RD•DS 181 Acrylic Duct Sealant is a gray water-based duct sealant used in medium and high-pressure duct systems. It is a special formulation which is non-flammable and provides permanent flexibility, excellent water-resistance and superior sealing strength. Use it to seal metal to metal joints to prevent air leaks in medium and high pressure systems of spiral and rectangular ductwork for air-conditioning, refrigeration, ventilation, and air distribution. RD•DS 181 may also be used to seal joints on run-outs of connecting metal flexible tubing. Cured sealant is discoloration resistant. Made in USA. 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: Excellent for ducting repairs in attic - Product arrived on time and container was intact and no damage to container. This was a concern from reading other reviews. No issues with this. Got an old paintbrush and went up into the attic to apply this duct sealant. The day before I inspected and re-taped as needed old repair work. I took some damp rags and cleaned the areas I was going to seal. I wanted to be sure the application areas were clean and dry per instructions. I applied the sealant onto my repairs with the duct tape, covering the areas completely with a 2 inch spread beyond the tape job just to be sure the sealing was good. The product was easy to apply with the paintbrush, and coats the areas well. The consistency of the sealant is like a thick pancake batter. I wore a mask because the odor is pretty strong, and wore latex gloves too. The next day I went to inspect and the ducting looks great. The sealant changes color slightly and it blends very well with the gray flex duct. I went ahead and applied to some spots that may need more coverage, and I did that with the putty knife. I’m glad my HVAC guy told me about this product. I had no idea it existed, but he said the duct tape alone won’t pass a property inspection but with the duct sealant it will. Really did a fantastic job and looks like it will last a long time and prevent future leaks where repairs were made. Good stuff!!
Review: Easy to Use, Seals Leaking Ducts/Joints - Air leaking from your HVAC ducts can results in up to a 20% (or more) loss of efficiency. This is because many vents are not properly sealed. Often the ducts are sealed with a poor-quality tape which can result in loss of heated or cooled air. Over time, the duct tape can detach from the ducts, results in air leaks. Even worse is the poor or shoddy workmanship that fails to properly seal the ducts. Our A/C unit was not cooling as efficiently, so I conducted a visual inspection of the ducts in our attic. I found multiple areas where the ducts were not properly sealed. I first applied a high-quality HVAC aluminum tape to all the poorly sealed joints. Then I brushed on the Red Devil Acrylic Latex Duct Sealant. I used a 3” paint brush and it took about 45 minutes to totally paint the sealant over all the taped joints. The latex duct sealant is like a heavy paste and goes on very easily. Even though you could wash out the brush, I used an inexpensive brush and tossed it when I was finished. I was very pleased with how easy it was to apply the latex duct sealant. I was even more pleased with the way it sealed up a large number of small leaks. It dries/sets it about an hour. Very effective seal. This is probably one of the best investments you can make to improve the cooling/heating efficiency of your HVAC system. The monthly savings more than pays for itself.

## Features

- PERMANENTLY FLEXIBLE: Acrylic latex formula provides excellent elasticity and water resistance
- INTERIOR / EXTERIOR USE: Can be used either inside or outside the home
- STRONG ADHESIVE GRIP: Provides a tough bond on metal to metal connections
- NON FLAMMABLE: Safe to use in enclosed areas. Made in the USA
- DISCOLORATION RESISTANT: Cured sealant will not discolor over time
- RD 181 Duct Sealant - Tub 1/2 Gallon
- Exceeds all pressure and sealing classes

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00R6GMYYG |
| Batteries | 1 Unknown batteries required. |
| Batteries Included? | No |
| Batteries Required? | No |
| Best Sellers Rank | #42,386 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #28 in Latex Caulk |
| Brand | Red Devil |
| Color | Gray |
| Customer Reviews | 4.6 4.6 out of 5 stars (599) |
| Date First Available | December 18, 2014 |
| Finish | Brushed |
| Global Trade Identification Number | 00075339012215 |
| Is Discontinued By Manufacturer | No |
| Item Form | Paste |
| Item Package Quantity | 1 |
| Item Weight | 6 pounds |
| Item dimensions L x W x H | 4 x 4 x 5 inches |
| Item model number | 0841DS |
| Manufacturer | Red Devil |
| Material | Acrylic Latex |
| Number of Items | 1 |
| Part Number | 0841DS |
| Pattern | Solid |
| Power Source | Hand_powered |
| Product Dimensions | 4 x 4 x 5 inches |
| Shape | Rectangular |
| Size | 1/2 Gallon |
| Style | 1 - Pack |
| Surface Recommendation | Metal |
| UPC | 075339012215 |
| Unit Count | 1.0 Count |
| Water Resistance Level | Water Resistant |

## Product Details

- **Brand:** Red Devil
- **Item Weight:** 6 Pounds
- **Item dimensions L x W x H:** 4 x 4 x 5 inches
- **Material:** Acrylic Latex
- **Style:** 1 - Pack

## Images

![Red Devil 0841DS RD-DS 181 Acrylic Latex Duct Sealant, 1/2 Gallon, Gray - Image 1](https://m.media-amazon.com/images/I/512U2FCr73L.jpg)
![Red Devil 0841DS RD-DS 181 Acrylic Latex Duct Sealant, 1/2 Gallon, Gray - Image 2](https://m.media-amazon.com/images/I/51BCFEzxfmL.jpg)
![Red Devil 0841DS RD-DS 181 Acrylic Latex Duct Sealant, 1/2 Gallon, Gray - Image 3](https://m.media-amazon.com/images/I/51DPLv9qA-L.jpg)
![Red Devil 0841DS RD-DS 181 Acrylic Latex Duct Sealant, 1/2 Gallon, Gray - Image 4](https://m.media-amazon.com/images/I/51KoJtMRxCL.jpg)
![Red Devil 0841DS RD-DS 181 Acrylic Latex Duct Sealant, 1/2 Gallon, Gray - Image 5](https://m.media-amazon.com/images/I/51gBuTDyj-L.jpg)

## Available Options

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ Excellent for ducting repairs in attic
*by J***S on May 9, 2024*

Product arrived on time and container was intact and no damage to container. This was a concern from reading other reviews. No issues with this. Got an old paintbrush and went up into the attic to apply this duct sealant. The day before I inspected and re-taped as needed old repair work. I took some damp rags and cleaned the areas I was going to seal. I wanted to be sure the application areas were clean and dry per instructions. I applied the sealant onto my repairs with the duct tape, covering the areas completely with a 2 inch spread beyond the tape job just to be sure the sealing was good. The product was easy to apply with the paintbrush, and coats the areas well. The consistency of the sealant is like a thick pancake batter. I wore a mask because the odor is pretty strong, and wore latex gloves too. The next day I went to inspect and the ducting looks great. The sealant changes color slightly and it blends very well with the gray flex duct. I went ahead and applied to some spots that may need more coverage, and I did that with the putty knife. I’m glad my HVAC guy told me about this product. I had no idea it existed, but he said the duct tape alone won’t pass a property inspection but with the duct sealant it will. Really did a fantastic job and looks like it will last a long time and prevent future leaks where repairs were made. Good stuff!!

### ⭐⭐⭐⭐⭐ Easy to Use, Seals Leaking Ducts/Joints
*by J***R on July 31, 2020*

Air leaking from your HVAC ducts can results in up to a 20% (or more) loss of efficiency. This is because many vents are not properly sealed. Often the ducts are sealed with a poor-quality tape which can result in loss of heated or cooled air. Over time, the duct tape can detach from the ducts, results in air leaks. Even worse is the poor or shoddy workmanship that fails to properly seal the ducts. Our A/C unit was not cooling as efficiently, so I conducted a visual inspection of the ducts in our attic. I found multiple areas where the ducts were not properly sealed. I first applied a high-quality HVAC aluminum tape to all the poorly sealed joints. Then I brushed on the Red Devil Acrylic Latex Duct Sealant. I used a 3” paint brush and it took about 45 minutes to totally paint the sealant over all the taped joints. The latex duct sealant is like a heavy paste and goes on very easily. Even though you could wash out the brush, I used an inexpensive brush and tossed it when I was finished. I was very pleased with how easy it was to apply the latex duct sealant. I was even more pleased with the way it sealed up a large number of small leaks. It dries/sets it about an hour. Very effective seal. This is probably one of the best investments you can make to improve the cooling/heating efficiency of your HVAC system. The monthly savings more than pays for itself.

### ⭐⭐⭐⭐⭐ Great Product
*by M***. on August 5, 2025*

Simply Great Product. It arrived, I went up to the attic, applied some foil and used to this to cover it all up as well as other open areas. Simply worked great and great price as well, thank you

## Frequently Bought Together

- Red Devil 0841DS RD-DS 181 Acrylic Latex Duct Sealant, 1/2 Gallon, Gray
- Romeda Aluminum Tape, 2 inch x 65 Feet Foil Tape (3.9 mil), Insulation Adhesive Metal Tape, High Temperature Heavy Duty HVAC Tape, Silver Tape Aluminum Foil Tape for Ductwork, Dryer Vent, HVAC
- Red Devil 4059 2" Chip Brush, wood, 1 Count (Pack of 1)

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*Product available on Desertcart Finland*
*Store origin: FI*
*Last updated: 2026-02-11*