---
product_id: 413029512
title: "Rectorseal 81881 5-Pound Duct Seal Compound,grey"
brand: "rectorseal"
price: "B/.139"
currency: PAB
in_stock: true
url: https://www.desertcart.com.pa/products/413029512-rectorseal-81881-5-pound-duct-seal-compound-grey
store_origin: PA
region: Panama
---

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

**Brand:** rectorseal
**Price:** B/.139
**Availability:** ✅ In 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?** B/.139 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.pa](https://www.desertcart.com.pa/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, watertight barrier resistant to water, alcohol, and mild acids
- • **Moldable Mastery:** Hand-moldable and reusable for endless custom sealing solutions
- • **Temperature Tough:** Performs flawlessly in a wide range of temperatures (25°F–120°F)
- • **Paint-Ready Finish:** Can be painted immediately without bleeding through for a clean, professional look

## Overview

The 81881 5-Pound Duct Seal Compound by Rectorseal is a versatile, gray, putty-like sealant designed for HVAC, plumbing, and electrical applications. It offers a reusable, non-toxic, and asbestos-free formula that adheres to most clean, dry surfaces, creating a durable air and water tight seal. Easy to hand-mold and apply across a broad temperature range, it resists corrosion and skin irritation, and can be painted immediately after application for a flawless finish.

## Description

Rectorseal 81881 5-Pound Duct Seal Compound,grey

## 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 |
|---------------|-------|
| Manufacturer | The Rectorseal Corporation |
| Part number | 81881 |
| Item Weight | 454 g |
| Product Dimensions | 11.43 x 25.4 x 3.81 cm; 453.59 g |
| Item model number | 81881 |
| Color | Gray |
| Style | 5 lb |
| Material | Rubber |
| Item Package Quantity | 1 |
| Included components | Duct Seal |
| Batteries Included? | No |
| Batteries Required? | No |

## Product Details

- **Material:** Rubber
- **Brand:** Rectorseal
- **Style:** 5 lb
- **Item weight:** 454 g
- **Item dimensions L x W x H:** 11.4 x 25.4 x 3.8 centimeters

## Images

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

## Available Options

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

## 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.

## Frequently Bought Together

- Rectorseal 81881 5-Pound Duct Seal Compound,grey
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**Shop now:** [https://www.desertcart.com.pa/products/413029512-rectorseal-81881-5-pound-duct-seal-compound-grey](https://www.desertcart.com.pa/products/413029512-rectorseal-81881-5-pound-duct-seal-compound-grey)

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*Product available on Desertcart Panama*
*Store origin: PA*
*Last updated: 2026-01-22*