---
product_id: 413029512
title: "Rectorseal 81881 5-Pound Duct Seal Compound,grey"
brand: "rectorseal"
price: "$U3947"
currency: UYU
in_stock: false
reviews_count: 5
url: https://www.desertcart.uy/products/413029512-rectorseal-81881-5-pound-duct-seal-compound-grey
store_origin: UY
region: Uruguay
---

# Water & air tight seal Works 25°F–120°F 5 lbs reusable putty Rectorseal 81881 5-Pound Duct Seal Compound,grey

**Brand:** rectorseal
**Price:** $U3947
**Availability:** ❌ Out of Stock

## Summary

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

## Quick Answers

- **What is this?** Rectorseal 81881 5-Pound Duct Seal Compound,grey by rectorseal
- **How much does it cost?** $U3947 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.uy](https://www.desertcart.uy/products/413029512-rectorseal-81881-5-pound-duct-seal-compound-grey)

## 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 and watertight barrier that resists water, alcohol, and mild acids.
- • **Mold It Your Way:** Soft, hand-moldable putty adapts to any shape for a perfect fit every time.
- • **Paint-Ready Finish:** Apply paint immediately after sealing with no bleed-through for a flawless look.
- • **Versatile Trade Essential:** Ideal for HVAC, plumbing, electrical, and general home sealing needs.

## Overview

RectorSeal 81881 is a 5-pound gray duct seal compound designed for professional-grade sealing. This soft, reusable putty works effectively between 25°F and 120°F, creating durable air and water tight seals resistant to water, alcohol, and mild acids. Non-toxic and asbestos-free, it’s safe on plastics, metals, and skin. Perfect for HVAC, plumbing, electrical, and general sealing applications, it can be painted immediately without bleed-through, making it a versatile must-have for tradesmen and home pros alike.

## 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 25Â°F to 120Â°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: تم تجربته على فتحات في جدران الاسمنتيه يقوم باغلاق الفتحه بشكل ممتاز يعمل كانه صلصال وليس ايضا يعمل ايه اضرار ويتحمل الاجواء الخارجيه وبامكانك ازالته في اي وقت
Review: I used this sealing product around my pipes and vent outside . The previous sealant had cracked and ants were getting inside. It was very easy to use and wasn't messy at all. I had some left over so I put the package into a ziploc bag. It did a great job for me and the price was very reasonable.

## 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 | B008A3UG9E |
| ASIN  | B008A3UG9E |
| Batteries Included? | No |
| Batteries Required? | No |
| Best Sellers Rank | #27,396 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #146 in Hardware Sealers |
| Color | Gray |
| Customer Reviews | 4.8 4.8 out of 5 stars (249) |
| Customer reviews | 4.8 4.8 out of 5 stars (249) |
| Date First Available | 25 January 2014 |
| Date First Available  | 25 January 2014 |
| Included components | Duct Seal |
| Item Package Quantity | 1 |
| Item Weight | 454 g |
| Item model number | 81881 |
| Item model number  | 81881 |
| Manufacturer | The Rectorseal Corporation |
| Manufacturer  | The Rectorseal Corporation |
| Material | Rubber |
| Part number | 81881 |
| Product Dimensions | 11.43 x 25.4 x 3.81 cm; 453.59 g |
| Product Dimensions  | 11.43 x 25.4 x 3.81 cm; 453.59 g |
| Style | 5 lb |

## Product Details

- **Brand:** Rectorseal
- **Item dimensions L x W x H:** 11.4 x 25.4 x 3.8 centimeters
- **Item weight:** 1 Pounds
- **Material:** Rubber
- **Style:** 5 lb

## Images

![Rectorseal 81881 5-Pound Duct Seal Compound,grey - Image 1](https://m.media-amazon.com/images/I/51wNMjdUSlL.jpg)
![Rectorseal 81881 5-Pound Duct Seal Compound,grey - Image 2](https://m.media-amazon.com/images/I/91v-rpEPXCL.jpg)

## Questions & Answers

**Q: is it removable?**
A: Yes it can be removed. It is like a thick putty. It can be molded and and pushed into cracks.  It's a great sealer.

**Q: Will this work ok for furnace sheet metal ducts? They get to maybe 150F.**
A: I did not buy this for any HVAC repair. I bought it for a metal trap for a pellet gun to silence the noise from pellets hitting the metal.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by W***D on 26 October 2024*

تم تجربته على فتحات في جدران الاسمنتيه يقوم باغلاق الفتحه بشكل ممتاز يعمل كانه صلصال وليس ايضا يعمل ايه اضرار ويتحمل الاجواء الخارجيه وبامكانك ازالته في اي وقت

### ⭐⭐⭐⭐⭐ Review
*by K***W on 4 August 2025*

I used this sealing product around my pipes and vent outside . The previous sealant had cracked and ants were getting inside. It was very easy to use and wasn't messy at all. I had some left over so I put the package into a ziploc bag. It did a great job for me and the price was very reasonable.

### ⭐⭐⭐⭐⭐ Review
*by A***A on 30 September 2024*

I love this stuff, used it to block a hole under the bathroom sink around the pipe. Great price, fast shipping and incredible stuff!

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*Product available on Desertcart Uruguay*
*Store origin: UY*
*Last updated: 2026-02-26*