---
product_id: 43516136
title: "Ideal 31-605 Duct Seal, 5 Pound Block"
brand: "ideal industries"
price: "₪218"
currency: ILS
in_stock: true
reviews_count: 8
category: "Ideal Industries"
url: https://www.desertcart.co.il/products/43516136-ideal-31-605-duct-seal-5-pound-block
store_origin: IL
region: Israel
---

# 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:** ₪218
**Availability:** ✅ In Stock

## Summary

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

## Quick Answers

- **What is this?** Ideal 31-605 Duct Seal, 5 Pound Block by ideal industries
- **How much does it cost?** ₪218 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.il](https://www.desertcart.co.il/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

- • **Trusted & Tested:** UL listed and highly rated with 4.6 stars from 700+ pros who rely on it daily.
- • **Bug & Vermin Defense:** Effectively blocks insect and vermin intrusion, keeping your spaces secure and insulated.
- • **Instant Finish Ready:** Non-toxic formula allows immediate painting post-application—no waiting, no hassle.
- • **Seal with Confidence:** Permanently soft, pliable compound that never dries out, ensuring a reliable seal every time.
- • **Versatile Compatibility:** Works seamlessly on metal, masonry, wood, and plastic without corrosion or damage.

## Overview

The Ideal 31-605 Duct Seal is a 5-pound, dark gray, non-toxic putty designed to create a durable moisture and air barrier around junction boxes, flashings, and service entrances. Its permanently soft, paintable formula prevents corrosion and insect intrusion, making it a trusted, UL-listed solution favored by HVAC and electrical professionals.

## 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 | #77,168 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #121 in HVAC Ducting |
| Brand | Ideal Industries |
| Brand Name | Ideal Industries |
| Color | Black |
| Compatible Material | Plastic, Rubber |
| Customer Reviews | 4.6 out of 5 stars 721 Reviews |
| Included Components | Duct Seal |
| Item Dimensions | 10.4 x 5.1 x 1.1 inches |
| Item Form | Paste |
| Item Weight | 2.31 Pounds |
| Item dimensions L x W x H | 10.4 x 5.1 x 1.1 inches |
| Manufacturer | IDEAL |
| Material | Rubber |
| Material Type | Rubber |
| Style | Compact |
| Style Name | 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)

## 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 Israel*
*Store origin: IL*
*Last updated: 2026-01-31*