---
product_id: 58747093
title: "Duct Seal 1 lb"
brand: "ideal industries"
price: "R$196"
currency: BRL
in_stock: true
reviews_count: 13
category: "Ideal Industries"
url: https://www.desertcart.com.br/products/58747093-duct-seal-1-lb
store_origin: BR
region: Brazil
---

# Water resistant barrier Non-toxic & paintable 1 lb compact sealant Duct Seal 1 lb

**Brand:** ideal industries
**Price:** R$196
**Availability:** ✅ In Stock

## Summary

> 🛡️ Seal smart, seal strong — don’t let leaks cramp your style!

## Quick Answers

- **What is this?** Duct Seal 1 lb by ideal industries
- **How much does it cost?** R$196 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.br](https://www.desertcart.com.br/products/58747093-duct-seal-1-lb)

## Best For

- ideal industries enthusiasts

## Why This Product

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

## Key Features

- • **Trusted & UL Listed:** Industry-approved quality that professionals rely on for HVAC and electrical sealing
- • **Safe for All Materials:** Won't corrode metals or damage plastics—perfect for diverse applications
- • **Instant Paint-Ready Finish:** Apply paint immediately after sealing for a seamless professional look
- • **Permanently Soft & Flexible:** Moldable putty that never hardens, ensuring long-lasting seals
- • **Ultimate Moisture & Air Barrier:** Seals junctions flawlessly to keep your space airtight and dry

## Overview

IDEAL 1 lb Duct Seal is a versatile, non-toxic, and permanently soft sealing compound designed to create moisture- and air-tight barriers around metal, masonry, wood, and plastic surfaces. UL listed and water resistant, it’s perfect for HVAC, electrical junction boxes, and service entrances, offering a paintable finish without damaging surrounding materials.

## Description

IDEAL 1 lb. duct seal in dark gray putty color is Ideal for sealing metal, masonry, wood or plastic. It offers 1.65 specific gravity and is non-toxic. It has calcium carbonate, magnesium aluminum silicate, crystalline quartz silica, butane polymer, synthetic polymer, carbon black, antioxidant, cellulose fiber, aluminum silicate, tall oil rosin and naphthenic wax composition. Duct seal is UL listed.

Review: Really great to use to seal outside ducting - Great product for outside ducting. I had a new HVAC system put in, and I had to get new refrigerant lines put in as well. Metal cover/ducting was put over the lines down the side of the house. I wanted to better seal the bottom of the ducting. This product is like a sticky and slightly tougher playdoh. You can shape it, and pull pieces apart to fit any space. I suspect that this 1 lb unit can easily cover up to 1/2 square foot of space. Some advice: 1. Remove the internal plastic cover -- it's tricky, as it rips easily. I ended up with pieces of it embedded. 2. Use a knife to cut pieces off -- you can rip them off, but it does leave a ragged "edge" that needs to be re-shapped. Overall, great product for the price!
Review: Easy to use and doesn't dry out - I like having this to seal penetrations. Very easy to use, soft and pliable and does not dry out. Works great and keeps bugs out. I will always have this stuff in my tool box.

## Features

- Moisture and air barrier
- Seals around junction boxes, flashings and service entrances
- Permanently soft, non-toxic compound can be painted immediately after application
- Won't adversely affect other plastic materials or corrode metals

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B003MZK122 |
| Best Sellers Rank | #96,599 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #160 in HVAC Ducting |
| Brand | Ideal Industries |
| Color | Black |
| Date First Available | April 14, 2012 |
| Global Trade Identification Number | 00783250316014 |
| Is Discontinued By Manufacturer | No |
| Item Form | Liquid |
| Item Weight | 0.16 ounces |
| Item dimensions L x W x H | 8 x 4 x 2 inches |
| Item model number | 31-601 |
| Manufacturer | IDEAL |
| Material | Aluminum, Rubber |
| Number of Items | 1 |
| Product Dimensions | 8 x 4 x 2 inches |
| Style | Compact |
| Surface Recommendation | Metal |
| UPC | 013227238897 783250316014 |
| Unit Count | 1.0 Count |
| Water Resistance Level | Water Resistant |

## Product Details

- **Brand:** Ideal Industries
- **Item Weight:** 0.01 Pounds
- **Item dimensions L x W x H:** 8 x 4 x 2 inches
- **Material:** Aluminum, Rubber
- **Style:** Compact

## Images

![Duct Seal 1 lb - Image 1](https://m.media-amazon.com/images/I/718Bc2LOwaL.jpg)
![Duct Seal 1 lb - Image 2](https://m.media-amazon.com/images/I/614b6FdNhzL.jpg)
![Duct Seal 1 lb - Image 3](https://m.media-amazon.com/images/I/614e+i+Cd9L.jpg)
![Duct Seal 1 lb - Image 4](https://m.media-amazon.com/images/I/61tQVNGiU-L.jpg)
![Duct Seal 1 lb - Image 5](https://m.media-amazon.com/images/I/71Czrtd0kiL.jpg)

## Available Options

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

## Questions & Answers

**Q: does this have a adhesive on the back?**
A: No, this is like play dough.  You can mold it into anything.  Hope this helps.

**Q: can this be used in 3 in. PVC conduit service entrance coming out of the ground to block water coming through conduit and feeder wires to the meter?**
A: Yes

**Q: May we know if it has certified by Underwriter's Labotratories?**
A: Yes it is, UL# R11734

**Q: could it be used to fill the gap between the skimmer body and pool concrete siding?**
A: Sure.... It is for outdoor use

## Customer Reviews

### ⭐⭐⭐⭐⭐ Really great to use to seal outside ducting
*by E***S on February 18, 2023*

Great product for outside ducting. I had a new HVAC system put in, and I had to get new refrigerant lines put in as well. Metal cover/ducting was put over the lines down the side of the house. I wanted to better seal the bottom of the ducting. This product is like a sticky and slightly tougher playdoh. You can shape it, and pull pieces apart to fit any space. I suspect that this 1 lb unit can easily cover up to 1/2 square foot of space. Some advice: 1. Remove the internal plastic cover -- it's tricky, as it rips easily. I ended up with pieces of it embedded. 2. Use a knife to cut pieces off -- you can rip them off, but it does leave a ragged "edge" that needs to be re-shapped. Overall, great product for the price!

### ⭐⭐⭐⭐⭐ Easy to use and doesn't dry out
*by N***K on July 18, 2025*

I like having this to seal penetrations. Very easy to use, soft and pliable and does not dry out. Works great and keeps bugs out. I will always have this stuff in my tool box.

### ⭐⭐⭐⭐⭐ Must have
*by T***S on January 5, 2025*

This product is great! I have used it numerous times and in numerous applications. It is maleable, holds in place, and can be used for plugging holes, insulation around outside piping to keep mice out, etc. Love it!

## Frequently Bought Together

- Duct Seal 1 lb
- 900 Moldable Silicone Putty - Black
- Rectorseal 81880 1-Pound Duct Seal Compound Gray

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*Product available on Desertcart Brazil*
*Store origin: BR*
*Last updated: 2026-02-20*