---
product_id: 513660633
title: "Rectorseal 81880 1-Pound Duct Seal Compound Gray"
brand: "rectorseal"
price: "€ 22.33"
currency: EUR
in_stock: true
reviews_count: 5
category: "Rectorseal"
url: https://www.desertcart.pt/products/513660633-rectorseal-81880-1-pound-duct-seal-compound-gray
store_origin: PT
region: Portugal
---

# Water & air tight, resists moisture Reusable & non-toxic, eco-smart Soft, moldable putty for custom sealing Rectorseal 81880 1-Pound Duct Seal Compound Gray

**Brand:** rectorseal
**Price:** € 22.33
**Availability:** ✅ In Stock

## Summary

> 🛡️ Seal smarter, not harder — the tradesman’s secret weapon!

## Quick Answers

- **What is this?** Rectorseal 81880 1-Pound Duct Seal Compound Gray by rectorseal
- **How much does it cost?** € 22.33 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.pt](https://www.desertcart.pt/products/513660633-rectorseal-81880-1-pound-duct-seal-compound-gray)

## 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 & Smart:** Non-toxic, asbestos-free formula that won’t corrode metals or irritate skin
- • **Seal Like a Pro:** Creates an airtight, watertight barrier that resists water, alcohol, and mild acids
- • **Mold It Your Way:** Hand-moldable from 25°F to 120°F for perfect fit every time
- • **Paint-Ready Finish:** Can be painted immediately without bleeding through for a flawless look
- • **Versatile Powerhouse:** Ideal for HVAC, plumbing, electrical, and general home sealing needs

## Overview

RectorSeal 81880 is a gray, soft, non-toxic silicone putty designed for professional-grade sealing. It hand-molds easily to any shape, creating a durable air and water tight seal resistant to moisture, mild chemicals, and corrosion. Safe for multiple surfaces and reusable, it’s perfect for HVAC, plumbing, electrical, and general sealing applications, with a paint-ready finish that won’t bleed through.

## 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.

Review: great putty - was easy to use for putting around pipes coming out of fridges
Review: Absolutely as described - This is a unique product. It works well to seal up holes in electrical boxes with wire passing through. Easy to knead and shape. Not sticky to the hands but stays in place very well. Too soon to tell but seems like it will stay pliable and not harden. Bottom line a great product for sealing up those holes in the wall through out the house where plumbing or wire passes through.

## 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 resued if necessary
- EASY TO USE: The putty like duct sealant compound is easy to use and can be hand applied from 25â°f to 120â°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 | #27,989 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #181 in Hardware Sealers |
| Brand | Rectorseal |
| Brand Name | Rectorseal |
| Color | Gray |
| Compatible Material | Metal |
| Customer Reviews | 4.7 out of 5 stars 1,591 Reviews |
| Global Trade Identification Number | 00021449818803 |
| Included Components | Duct Seal Compound |
| Item Dimensions | 16.5 x 7.6 x 7.6 centimeters |
| Item Form | Putty |
| Item Type Name | Duct Seal Compound |
| Item Weight | 0.45 Kilograms |
| Item dimensions L x W x H | 16.5 x 7.6 x 7.6 centimeters |
| Item weight | 0.45 Kilograms |
| Manufacturer | The Rectorseal Corporation |
| Material | Silicone |
| Material Type | Silicone |
| Model | 81880 |
| Number of Items | 1 |
| Number of Packs | 1 |
| Part Number | 81880 |
| Style | Industrial |
| Style Name | Industrial |
| Surface Recommendation | Various surfaces |
| UPC | 021449818803 |
| Unit Count | 16 Grams |
| Water Resistance Level | Water Resistant |
| Water resistance level | Water Resistant |

## Product Details

- **Brand:** Rectorseal
- **Item dimensions L x W x H:** 16.5 x 7.6 x 7.6 centimeters
- **Item weight:** 0.45 Kilograms
- **Material:** Silicone
- **Style:** Industrial

## Images

![Rectorseal 81880 1-Pound Duct Seal Compound Gray - Image 1](https://m.media-amazon.com/images/I/51CWERSfKML.jpg)

## 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,

## Customer Reviews

### ⭐⭐⭐⭐⭐ great putty
*by R***R on 21 January 2025*

was easy to use for putting around pipes coming out of fridges

### ⭐⭐⭐⭐⭐ Absolutely as described
*by D***N on 29 May 2026*

This is a unique product. It works well to seal up holes in electrical boxes with wire passing through. Easy to knead and shape. Not sticky to the hands but stays in place very well. Too soon to tell but seems like it will stay pliable and not harden. Bottom line a great product for sealing up those holes in the wall through out the house where plumbing or wire passes through.

### ⭐⭐⭐⭐ Good
*by M***E on 5 July 2024*

Good

## 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 Portugal*
*Store origin: PT*
*Last updated: 2026-09-11*