---
product_id: 149918408
title: "GREAT STUFF Pestblock"
brand: "great stuff"
price: "€ 30.93"
currency: EUR
in_stock: true
category: "Great Stuff"
url: https://www.desertcart.be/products/149918408-great-stuff-pestblock
store_origin: BE
region: Belgium
---

# Tack-free in 10-15 mins, trims in 1 hour Reusable Smart Dispenser lasts 30 days Expands up to 1" for airtight seal GREAT STUFF Pestblock

**Brand:** great stuff
**Price:** € 30.93
**Availability:** ✅ In Stock

## Summary

> 🚫🐜 Seal the deal, stop the pests, and upgrade your home’s defense!

## Quick Answers

- **What is this?** GREAT STUFF Pestblock by great stuff
- **How much does it cost?** € 30.93 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.be](https://www.desertcart.be/products/149918408-great-stuff-pestblock)

## Best For

- great stuff enthusiasts

## Why This Product

- Trusted great stuff brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Fast-Track Your DIY:** Dries tack-free in just 10-15 minutes and cures rigid for trimming and finishing within an hour—keep your projects on schedule.
- • **Energy-Saving Barrier:** Creates a long-lasting, water-resistant seal that improves home energy efficiency by blocking air leaks and moisture.
- • **Seal Every Nook & Cranny:** Expands precisely to fill gaps up to 1 inch, blocking pests and drafts effortlessly.
- • **Versatile Adhesion Power:** Bonds securely to wood, metal, masonry, glass, and most plastics—perfect for both interior and exterior use.
- • **Work Smarter, Not Harder:** Reusable Smart Dispenser offers drip-free, controlled application—pause and resume projects without waste for up to 30 days.

## Overview

Great Stuff 99112809 Smart Dispenser Pestblock is a gray, ready-to-use expanding foam sealant that fills gaps up to 1 inch to create airtight, water-resistant seals. Featuring a reusable smart dispenser for precise, no-drip application lasting up to 30 days, it bonds to multiple materials including wood, metal, and masonry. Tack-free in 10-15 minutes and fully trim-ready in 1 hour, it’s UL classified and designed for both interior and exterior use, enhancing energy efficiency while blocking pests and drafts.

## Description

Great Stuff 99112809 Smart Dispenser Pestblock, Grey

## Features

- This ready-to-use foam sealant expands up to 1" to take the shape of gaps, creating a long-lasting, airtight seal. Block out nuisances entering your home.
- PUT FOAM WHERE THEY ROAM. Take on common areas where nuisances get in such as PVC pipe penetrations, around electrical cable lines, water faucet penetrations, attic hatch frames, rim joists, sill plates and more.ates and more.
- DISPENSE SMARTER. Securely thread the Reusable Smart Dispenser and leave attached to the can to seal projects for up to 30-days. Insulating foam stops as you stop for clean, easy, no-drip dispensing and increased precision with more control.
- SPRAY ANYWHERE. Fill gaps and keep nuisances out with exceptional adhesion to building materials on both the interior and exterior of your home. Adheres to wood, metal, masonry, glass and most plastics.
- VERSATILITY. Stop waiting around and keep the pace of your projects on target. This foam sealant dries tack-free in 20 minutes and cures rigid for trimming in 1 hour. Trim, sand, stain and paint for a truly GREAT finish to your DIY projects.
- Light Grey in color - Forms a long-lasting, airtight and water-resistant barrier
- Helps improve the home’s energy efficiency by sealing gaps and cracks
- Interior/Exterior use - Bonds to most building materials and surfaces
- Tack free in 10–15 minutes; Trims in one hour
- UL Classified

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07GL5H78K |
| Best Sellers Rank | #1,326 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #12 in Wall Surface Repair Products |
| Brand Name | Great Stuff |
| Color | Gray |
| Compatible Material | Wood, Metal, Masonry, Glass, Plastic |
| Customer Reviews | 4.3 4.3 out of 5 stars (4,782) |
| Global Trade Identification Number | 00041343012084 |
| Included Components | SMART DISPENSER straw |
| Item Dimensions | 3 x 3 x 8 inches |
| Item Form | Spray |
| Item Type Name | Pestblock |
| Item Weight | 12 Ounces |
| Manufacturer | Dow |
| Material Type | Plastic |
| Model | 99112809 |
| Number of Items | 1 |
| Part Number | 99112809 |
| Style Name | Pestblock |
| UPC | 041343012084 |
| Unit Count | 1.0 Count |
| Warranty Description | Warranty |
| Water Resistance Level | Water Resistant |

## Product Details

- **Brand:** Great Stuff
- **Item Weight:** 12 Ounces
- **Item dimensions L x W x H:** 3 x 3 x 8 inches
- **Material:** Plastic
- **Style:** Pestblock

## Images

![GREAT STUFF Pestblock - Image 1](https://m.media-amazon.com/images/I/71DaS6sXYZL.jpg)

## Available Options

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

## Questions & Answers

**Q: will this keep mice out?**
A: From the manufacturer since I requested how it deters critters from eating it.


 
Dear Mr. U******ff,
 
Thank you for your inquiry.
 
Great Stuff™ Pestblock Insulating Foam Sealant is a pesticide-free method to physically block critters, bugs and other pests from your home. The formulation contains an additional distasteful agent that strongly discourages consumption of the foam and protects the integrity of the physical barrier, keeping pests outside where they should be. The sealant blocks insects and pests from entering the home by sealing gaps, cracks and holes where they commonly enter. In addition to blocking pests from the home, Great Stuff Pestblock Insulating Foam Sealant air-seals holes, gaps and cracks to help keep air from leaking out of or seeping into the home’s envelope, saving on heating and cooling costs.
 
Best regards,
_______________________
Mike
DuPont Contact Center
Regional Telephone Numbers
DuPont Website

Facebook logo Indeed Logo Twitter Logo
 
Original Inquiry
 
Information provided:
I'm trying to find out the difference between pest block and the other products. I have used several your products including the pond one but the pest block is new to me. I've tried to find the information and I see nothing that makes it different in your literature. I found one post that said it had denatonium benzoate but I don't is in your literature or msds. Specifically what makes it different?
 

 
Specific Products of Interest
 
 
Application
Exterior Foundation issues
 
 
 
Great Stuff™ Pestblock,Great Stuff Pro™ Pestbloc

**Q: can this be used to fill in crack in concrete?**
A: Yes but only a large deep crack. It will dry and swell out of the intended space and need to be trimmed. It will not be hard like concrete, and it doesn't stay gray. It turned yellow like all other Great Stuff I've used.

**Q: Can this be use to insulate outlets? We have ants coming in and out of ours.**
A: Do not use any expandable foam to seal outlets. It can push things out of place; additionally, it makes it very difficult and messy to ever change your outlets later on, as the foam expands and can seal up the wires. I have seen this once, in a house, and it was not a good idea. 
To seal things up, I would suggest silicone caulking or something that will not expand.

**Q: can a small amount of the spray be flushed down the toilet?**
A: No! Please don't do that!!! This stuff is not only water resistant (won't dissolve!!!), it is rigid and would be like flushing a plastic toy down your toilet! Just toss it in the garbage!

## Frequently Bought Together

- Great Stuff 99112809 Smart Dispenser Pestblock, Gray
- Steel Wool Mice Control, 2 Pack 3" x10 Ft Hole Filler, Gap Blocker, Barrier, Protect Against Animals in Holes Holes, Siding, Pipeline, Vents for Garden, House, Garage
- Raytrends Copper Mesh Rodent Control Kit, 5 Inch x 35ft Rustproof Copper Wool Blend, DIY Hole Filler, Complete with Precision Scissors and Packing Tool for Mice & Rodent Defense

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*Product available on Desertcart Belgium*
*Store origin: BE*
*Last updated: 2026-06-23*