---
product_id: 43516136
title: "Ideal 31-605 Duct Seal, 5 Pound Block"
brand: "ideal industries"
price: "S/.244"
currency: PEN
in_stock: true
reviews_count: 13
category: "Ideal Industries"
url: https://www.desertcart.pe/products/43516136-ideal-31-605-duct-seal-5-pound-block
store_origin: PE
region: Peru
---

# Moisture & air barrier protection Non-toxic & paintable immediately 5 lb block for long-lasting use Ideal 31-605 Duct Seal, 5 Pound Block

**Brand:** ideal industries
**Price:** S/.244
**Availability:** ✅ In Stock

## Summary

> 🛡️ Seal smart, seal strong — never let leaks or pests crash your space!

## Quick Answers

- **What is this?** Ideal 31-605 Duct Seal, 5 Pound Block by ideal industries
- **How much does it cost?** S/.244 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.pe](https://www.desertcart.pe/products/43516136-ideal-31-605-duct-seal-5-pound-block)

## 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

- • **Safe & Smart:** Non-toxic formula that won’t corrode metals or damage plastics, keeping your installations clean and durable.
- • **Built to Last:** 5-pound block ensures you have enough material for multiple projects without frequent repurchasing.
- • **Instant Finish:** Can be painted immediately after application, blending seamlessly with your work for a professional look.
- • **Bug & Weather Shield:** Effectively blocks moisture, air, and insect intrusion, protecting your home or workspace year-round.
- • **Seal with Confidence:** Permanently soft, pliable compound that never dries out for reliable sealing around junction boxes and service entrances.

## Overview

The Ideal 31-605 Duct Seal is a 5-pound, non-toxic, permanently soft putty designed to create moisture and air-tight seals around metal, masonry, wood, and plastic surfaces. UL listed and paintable immediately after application, it prevents corrosion and insect intrusion, making it a trusted choice for HVAC and electrical sealing needs.

## Description

IDEAL 5 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: 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.
Review: Does what it is supposed to - Helps seal around a/c pipes on the exterior walls of house. Lasts and is very easy to apply. Prevents insect/vermin intrusion and insulates.

## 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 | B00788AHU0 |
| Best Sellers Rank | #57,315 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #79 in HVAC Ducting |
| Brand | Ideal Industries |
| Color | Black |
| Date First Available | February 12, 2012 |
| Is Discontinued By Manufacturer | No |
| Item Form | Paste |
| Item Weight | 2.31 pounds |
| Item dimensions L x W x H | 10.4 x 5.1 x 1.1 inches |
| Item model number | 31-605 |
| Manufacturer | IDEAL |
| Material | Rubber |
| Number of Items | 1 |
| Product Dimensions | 10.4 x 5.1 x 1.1 inches |
| Style | Compact |
| Surface Recommendation | Metal |
| UPC | 783250316052 |
| Unit Count | 10 Count |
| Water Resistance Level | Water Resistant |

## Product Details

- **Brand:** Ideal Industries
- **Item Weight:** 2.31 Pounds
- **Item dimensions L x W x H:** 10.4 x 5.1 x 1.1 inches
- **Material:** Rubber
- **Style:** Compact

## Images

![Ideal 31-605 Duct Seal, 5 Pound Block - Image 1](https://m.media-amazon.com/images/I/81AIREhd34L.jpg)

## Available Options

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ 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.

### ⭐⭐⭐⭐⭐ Does what it is supposed to
*by S***R on December 14, 2024*

Helps seal around a/c pipes on the exterior walls of house. Lasts and is very easy to apply. Prevents insect/vermin intrusion and insulates.

### ⭐⭐⭐⭐⭐ material is freash
*by R***N on April 10, 2025*

Received as stated, worked well.

## Frequently Bought Together

- Ideal 31-605 Duct Seal, 5 Pound Block
- 900 Moldable Silicone Putty - Black
- Rectorseal 81880 1-Pound Duct Seal Compound Gray

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*Product available on Desertcart Peru*
*Store origin: PE*
*Last updated: 2026-02-06*