---
product_id: 30987123
title: "Duct Seal 81880 Compound, Easily Applied to Plumbing & Metal Fabrication, Paintable General Purpose Sealant, 1 lb"
brand: "rectorseal"
price: "$22.22"
currency: USD
in_stock: true
category: "Rectorseal"
url: https://www.desertcart.us/products/30987123-duct-seal-81880-compound-easily-applied-to-plumbing-and-metal
store_origin: US
region: United States of America
---

# Creates airtight, water-resistant seals Works from 25°F to 120°F for versatile application Soft, moldable putty for custom sealing Duct Seal 81880 Compound, Easily Applied to Plumbing & Metal Fabrication, Paintable General Purpose Sealant, 1 lb

**Brand:** rectorseal
**Price:** $22.22
**Availability:** ✅ In Stock

## Summary

> 🛠️ Seal smart, seal strong — the pro’s choice for airtight perfection!

## Quick Answers

- **What is this?** Duct Seal 81880 Compound, Easily Applied to Plumbing & Metal Fabrication, Paintable General Purpose Sealant, 1 lb by rectorseal
- **How much does it cost?** $22.22 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/30987123-duct-seal-81880-compound-easily-applied-to-plumbing-and-metal)

## Best For

- rectorseal enthusiasts

## Why This Product

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

## Key Features

- • **Safe & Strong:** Non-toxic, asbestos-free formula that won’t corrode metals or irritate skin—professional-grade peace of mind.
- • **Mold It Your Way:** Hand-moldable putty adapts perfectly to any shape or surface for a flawless seal every time.
- • **Temperature Tough:** Reliable performance from chilly 25°F to scorching 120°F—seal with confidence year-round.
- • **Paint-Ready Finish:** Apply and paint immediately without bleed-through, blending seamlessly into your project.
- • **Trade-Trusted Quality:** Preferred by HVAC, plumbing, and electrical pros for durable, reusable sealing solutions.

## Overview

RectorSeal Duct Seal 81880 is a gray, soft, non-toxic putty compound designed for easy hand application on clean, dry surfaces. It forms durable, airtight, and water-resistant seals that resist water, alcohol, and mild acids. Safe for plastics and metals, asbestos-free, and paintable immediately after application, it’s a versatile sealant trusted by HVAC, plumbing, and electrical professionals for reliable, reusable sealing in a wide temperature range.

## Description

Product Description RectorSeal Duct Seal Compound is a gray, soft, non-toxic, putty-type compound that adheres to most clean dry surfaces. The putty like duct sealant compound is easy to use and can be hand applied from 25°F to 120°F. Duct Seal creates an air and water tight seal. Resistant to water, alcohol, and mild acids and bases. Duct Seal Compound is asbestos-free. It will not damage plastic materials, corrode metals, or have adverse effect on human skin. Duct Seal compound; grey in color and putty like; non-corrosive and non-irritant. Can be hand-shaped to any form and reused if necessary, has many applications in HVAC/R, plumbing, metal fabrication, and a superb general purpose sealant around the home. May be painted immediately after applying and won't bleed through dry paint film. FOR THE TRADESMAN: RectorSeal is recognized as a leading provider of quality solutions for the professional trades serving heating, ventilation, and air conditioning (HVAC/R), plumbing, electrical, and construction markets. From the Manufacturer RectorSeal Duct Seal Compound is a gray, permanently soft, non-toxic, putty type compound which adheres to most clean, dry surfaces. It is designed to be used when sealing around the ends of electrical conduit and boxes. 10-Pound.

## Features

- APPLICATION: Rectorseal duct seal compound is a gray, soft, non-toxic, putty-type compound that adheres to most clean dry surfaces; Duct Seal can be hand-molded to any form and reused if necessary
- EASY TO USE: The putty like duct sealant compound is easy to use and can be hand applied from 25°f to 120°f; can be applied to electrical conduit ends and boxes, flashings, and service mast entries
- SUPERIOR FORMULA: Duct seal creates an air and water tight seal; resistant to water, alcohol, and mild acids and bases; duct seal compound is asbestos-free; it will not damage plastic materials, corrode metals, or have adverse effect on human skin
- SPECIFICATIONS: Duct seal compound; grey in color and putty like; non-corrosive and non-irritant; can be hand-shaped to any form and reused if necessary, has many applications in hvac/r, plumbing, metal fabrication, and a superb general purpose sealant around the home; may be painted immediately after applying and won't bleed through dry paint film
- FOR THE TRADESMAN: RectorSeal is recognized as a leading provider of quality solutions for the professional trades serving heating, ventilation, and air conditioning (HVAC/R), plumbing, electrical, and construction markets

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B008A3UG94 |
| Best Sellers Rank | #2,053 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #6 in Hardware Sealers |
| Brand Name | Rectorseal |
| Color | Gray |
| Compatible Material | Metal |
| Customer Reviews | 4.7 4.7 out of 5 stars (1,820) |
| Global Trade Identification Number | 00021449818803 |
| Included Components | Duct Seal Compound |
| Item Dimensions | 6.5 x 3 x 3 inches |
| Item Form | Putty |
| Item Type Name | Duct Seal Compound |
| Item Weight | 0.45 Kilograms |
| Manufacturer | The Rectorseal Corporation |
| Material Type | Putty |
| Model | 81880 |
| Number of Items | 1 |
| Part Number | 81880 |
| Style Name | 1 lb |
| Surface Recommendation | Adheres to most clean dry surfaces |
| UPC | 021449818803 |
| Unit Count | 1.0 Count |
| Water Resistance Level | Water Resistant |

## Product Details

- **Brand:** Rectorseal
- **Item Weight:** 0.45 Kilograms
- **Item dimensions L x W x H:** 6.5 x 3 x 3 inches
- **Material:** Putty
- **Style:** 1 lb

## Images

![Duct Seal 81880 Compound, Easily Applied to Plumbing & Metal Fabrication, Paintable General Purpose Sealant, 1 lb - Image 1](https://m.media-amazon.com/images/I/51CWERSfKML.jpg)

## Available Options

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

## Questions & Answers

**Q: Is it paintable?**
A: Cannot say. I bought it as a waterproof sealant and for this purpose it works perfectly.

**Q: Is this for 1 lb? Or for 10?**
A: 1 Lb. Was more than enough with plenty left over for other jobs

**Q: Can this be used to patch a hole in the wall around stove gas pipe?**
A: Are you talking about a gas line coming into the stove, I’d say yes it can be. If you’re talking about the actual stove pipe that gets hot then no.

**Q: Would this work to fill a 2 inch hole with electrical wires coming through it that is immersed in hot water?**
A: Yes, the only limit to this material is your wallet and imagination,

## Frequently Bought Together

- Rectorseal 81880 1-Pound Duct Seal Compound Gray
- Shurtape LS 300 HVAC Line Set Tape, 55m Length x 48mm Width, Black (Pack of 1)
- 3/4" x 6 ft. Elastomeric Pipe Insulation, 1/2" Wall

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-07-12*