---
product_id: 674471243
title: "Rodent Block Expanding Foam Barrier, Fills Gaps to Keep Mice From Entering the Home, 12 oz."
brand: "tomcat"
price: "¥6597"
currency: JPY
in_stock: true
url: https://www.desertcart.jp/products/674471243-rodent-block-expanding-foam-barrier-fills-gaps-to-keep-mice
store_origin: JP
region: Japan
---

# Pesticide-free rodent barrier Water-resistant & durable bond Expands to fill gaps airtight Rodent Block Expanding Foam Barrier, Fills Gaps to Keep Mice From Entering the Home, 12 oz.

**Brand:** tomcat
**Price:** ¥6597
**Availability:** ✅ In Stock

## Summary

> 🚫🐭 Seal the deal, stop the squeal!

## Quick Answers

- **What is this?** Rodent Block Expanding Foam Barrier, Fills Gaps to Keep Mice From Entering the Home, 12 oz. by tomcat
- **How much does it cost?** ¥6597 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/674471243-rodent-block-expanding-foam-barrier-fills-gaps-to-keep-mice)

## Best For

- tomcat enthusiasts

## Why This Product

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

## Key Features

- • **Custom Finish Ready:** Trim, sand, and paint to blend seamlessly with your home’s aesthetic.
- • **Eco-Smart Pest Defense:** Pesticide-free formula protects your home without harmful chemicals.
- • **Built to Last, Rain or Shine:** Water-resistant and airtight bond ensures long-term protection indoors and out.
- • **Versatile Application Anywhere:** Perfect for garage, attic, basement, foundation—spray and secure every vulnerable spot.
- • **Seal Every Crack, Block Every Mouse:** Expanding foam fills and seals gaps to keep rodents out for good.

## Overview

Tomcat Rodent Block Expanding Foam Barrier is a 12 oz. pesticide-free spray foam that expands to fill gaps and cracks, creating a durable, airtight, and water-resistant seal to prevent mice from entering your home. Suitable for indoor and outdoor use, it can be trimmed, sanded, and painted for a clean finish.

## Description

Rodent Block Expanding Foam Barrier, Fills Gaps to Keep Mice From Entering the Home, 12 oz.

## Features

- Tomcat Rodent Block Expanding Foam Barrier fills gaps and cracks to block mice from coming inside your home
- Our spray foam is the pesticide-free way to create a rodent barrier
- This expanding foam provides a long-lasting, airtight, and water-resistant bond to most building materials
- Spray in crevices inside and outside your house, including the garage, attic, basement, and foundation
- Tomcat Rodent Block Expanding Foam Barrier can be trimmed, sanded, and painted if desired

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Product Name | Spray Keeps Mice From Coming Inside the House |
| Units | 12 Grams |
| Brand | Tomcat |
| Format | Foam,Spray |

## Product Details

- **Brand:** Tomcat
- **Scent:** Unscented
- **Item volume:** 12 Fluid Ounces
- **Material features:** Non Toxic
- **Item form:** Foam,Spray

## Images

![Rodent Block Expanding Foam Barrier, Fills Gaps to Keep Mice From Entering the Home, 12 oz. - Image 1](https://m.media-amazon.com/images/I/61QuN-Td4RL.jpg)

## Available Options

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

## Questions & Answers

**Q: Can this be put under radiator without fire hazard?**
A: I used this product in May. It worked very well. I was worried about the radiator in the home because that's where I put most of it. So far no problem but it did sit and harden for 5 months.

**Q: Does it have a smell ?**
A: Didnt notice any smell. Used outside though

**Q: Can you use the can upside down**
A: I didn't need to have it upside down, but I definitely had it sideways and it filled crevices great.  If upside down is a problem, try sideways and use your free hand to point the end of the straw where you need it.

**Q: Found a gap between siding and wall pointing downward.  Mice climb up and get inside.  Will the foam hold up and not get pulled down by gravity?**
A: The foam dries very hard!  I don't see how mice could or would eat thru all of that!  But maybe I would be surprised at what mice can do!  I have an unfarmed 40 acres next to me so there are many mice in the field!  I had to hire a pest control service to put bait boxes in different areas inside and out!  It's costing me around $40.00 a month!  I didn't have mice in the house until I had a walk in tub put in!  They did plumbing under the house and things were not sealed up tightly, so hello mice!

## Frequently Bought Together

- Tomcat Rodent Block Expanding Foam Barrier, Fills Gaps to Keep Mice From Entering the Home, 12 oz.
- 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
- Xcluder Rodent Control Fill Fabric, Large DIY Kit with Inspection and Fit Tool, Stainless Steel Wool, Stops Rats and Mice

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**Shop now:** [https://www.desertcart.jp/products/674471243-rodent-block-expanding-foam-barrier-fills-gaps-to-keep-mice](https://www.desertcart.jp/products/674471243-rodent-block-expanding-foam-barrier-fills-gaps-to-keep-mice)

---

*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-02-14*