---
product_id: 149918408
title: "Great Stuff 99112809 Smart Dispenser Pestblock, Gray"
brand: "great stuff"
price: "R407"
currency: ZAR
in_stock: true
reviews_count: 8
category: "Great Stuff"
url: https://www.desertcart.co.za/products/149918408-great-stuff-99112809-smart-dispenser-pestblock-gray
store_origin: ZA
region: South Africa
---

# Tack-free in 10-15 minutes, trims in 1 hour Reusable Smart Dispenser lasts 30 days Expands up to 1" for airtight seal Great Stuff 99112809 Smart Dispenser Pestblock, Gray

**Brand:** great stuff
**Price:** R407
**Availability:** ✅ In Stock

## Summary

> 🚫🐜 Seal smart, live pest-free—because your home deserves the best defense!

## Quick Answers

- **What is this?** Great Stuff 99112809 Smart Dispenser Pestblock, Gray by great stuff
- **How much does it cost?** R407 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.za](https://www.desertcart.co.za/products/149918408-great-stuff-99112809-smart-dispenser-pestblock-gray)

## 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

- • **Seal Every Nook & Cranny:** Expands to fill gaps up to 1 inch, blocking pests and drafts for lasting comfort.
- • **Versatile Adhesion Power:** Bonds seamlessly to wood, metal, masonry, glass, and most plastics—interior or exterior.
- • **Energy-Saving Pest Blocker:** Creates a water-resistant, airtight barrier that boosts home energy efficiency while keeping nuisances out.
- • **Precision Control, Zero Waste:** Smart Dispenser lets you pause and resume projects with no-drip, no-mess application.
- • **Fast-Dry Formula for On-the-Go Pros:** Tack-free in 10-15 minutes and ready to trim or paint in just 1 hour to keep your projects moving.

## Overview

Great Stuff 99112809 Smart Dispenser Pestblock is a high-performance expanding foam sealant designed to block pests and seal gaps up to 1 inch. Featuring a reusable dispenser for up to 30 days of controlled, no-drip application, it bonds to a wide range of materials and dries tack-free in 10-15 minutes. Ideal for both interior and exterior use, it forms a durable, water-resistant barrier that enhances energy efficiency and keeps your home protected.

## Description

Great Stuff 99112809 Smart Dispenser Pestblock, Grey

Review: Worked Perfectly for Sealing Out Rodents - This product does exactly what it’s meant to do. I used it to seal an old hole on the side of my garage that previously had plastic stuffed into it to keep rodents out. I added a bit of copper mesh, and the foam flowed right through and expanded all around it, sealing everything up nicely. As a first-time user, it did get a little messy, but that was more user error than the product itself. It’s really a single-use item, but that seems standard for this type of product. Totally worth the money—especially for the peace of mind and not having to keep putting the job off. I would definitely recommend it. Pros: - Works exactly as intended - Expands well and seals thoroughly - Great for pest and rodent prevention - Easy to apply once you get the hang of it - Worth the cost for peace of mind Cons: - Can be messy for first-time users (likely avoidable with experience)
Review: Pest control - Works great to keep critters out of attic. Nozzle that's included makes it some much easier to apply.

## 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 |
|---------------|-------|
| Brand | Great Stuff |
| Item Weight | 12 Ounces |
| Item dimensions L x W x H | 3 x 3 x 8 inches |
| Material | Plastic |
| Style | Pestblock |
| 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 99112809 Smart Dispenser Pestblock, Gray - 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!

## Customer Reviews

### ⭐⭐⭐⭐⭐ Worked Perfectly for Sealing Out Rodents
*by T***S on February 7, 2026*

This product does exactly what it’s meant to do. I used it to seal an old hole on the side of my garage that previously had plastic stuffed into it to keep rodents out. I added a bit of copper mesh, and the foam flowed right through and expanded all around it, sealing everything up nicely. As a first-time user, it did get a little messy, but that was more user error than the product itself. It’s really a single-use item, but that seems standard for this type of product. Totally worth the money—especially for the peace of mind and not having to keep putting the job off. I would definitely recommend it. Pros: - Works exactly as intended - Expands well and seals thoroughly - Great for pest and rodent prevention - Easy to apply once you get the hang of it - Worth the cost for peace of mind Cons: - Can be messy for first-time users (likely avoidable with experience)

### ⭐⭐⭐⭐⭐ Pest control
*by K***Y on January 31, 2026*

Works great to keep critters out of attic. Nozzle that's included makes it some much easier to apply.

### ⭐⭐⭐⭐ Could Be a Bit More Gray
*by J***N on January 4, 2026*

Worked as advertised, I always have great luck with Great Stuff branded products. Was really hoping for a more substantial gray tint than the end result though. This may not suit your needs if you're looking for a dark gray filler. Still, it expanded fully and sealed well regardless!

## 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

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.co.za/products/149918408-great-stuff-99112809-smart-dispenser-pestblock-gray](https://www.desertcart.co.za/products/149918408-great-stuff-99112809-smart-dispenser-pestblock-gray)

---

*Product available on Desertcart South Africa*
*Store origin: ZA*
*Last updated: 2026-02-23*