5 out of 5 Customer Rating
Tomcat® Rodent Block Expanding Foam Barrier is rated 4.3 out of 5 by 60.
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Tomcat

Rodent Block Expanding Foam Barrier

$13.99
5 out of 5 Customer Rating
Tomcat® Rodent Block Expanding Foam Barrier is rated 4.3 out of 5 by 60.
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Tomcat
Rodent Block Expanding Foam Barrier
$13.99

Keep mice from getting inside. This pesticide-free insulating foam sealant blocks rodents, expanding to fill gaps and cracks with a long-lasting, airtight bond to most building materials. Use it inside or outside to seal off the entry points rodents rely on.

4418501

Key Features

  • SPECIFICALLY FORMULATED TO BLOCK MICE: An insulating foam sealant engineered to expand into gaps and cracks, forming a long-lasting barrier rodents can't get through
  • LONG LASTING & PESTICIDE-FREE: Works as a physical barrier rather not a rodent control, forming a cured bond that holds up over time without needing to be reapplied
  • INSIDE & OUTSIDE RODENT BARRIER: Can be used both indoors and outdoors to seal the gaps and cracks rodents use to enter a structure

Tomcat Rodent Block Expanding Foam Barrier is a pesticide-free insulating foam sealant specifically formulated to block mice. It expands to fill in gaps and cracks, forming a long-lasting, airtight and water-resistant bond to most building materials and can be used inside or outside. The foam is tack-free in about 15 minutes and cures in about 8 hours; it can be trimmed, sanded, or painted once cured. Recommended usage temperature is 60-90°F, with 75°F as the optimal temperature for application.

Product Type: Expanding foam rodent barrier

Product Size: 12 oz.

SKU #: 4418515

Product Label

This is not the product label. Always read and follow the product label before use.

Safety data sheet can be found at: https://www.scottsmsds.com

Where to Use: Apply to gaps and cracks in walls, foundations, and other entry points, inside or outside a structure, where mice may gain access.

Where Not to Use: Do not use it to fill closed cavities or voids. This product is not for use in aviation, in food or beverage contact applications, or as structural support in marine applications.

When to Use: Use whenever you find cracks or crevices inside and outside your house, including the garage and attic, that are large enough for a mouse to access or as soon as you see a rodent or signs of one.

How Often to Use: This bottle is restartable for up to four weeks after first use, though restarting is not guaranteed to work.

  1. SHAKE: Shake vigorously for a minimum of 60 seconds before use.
  2. ATTACH STRAW & APPLY: Firmly screw the straw onto the valve, then dispense foam slowly. Fill gaps less than 50% full; the foam will continue to expand. Mist with water to speed curing.
  3. FINISH: When done, bend the straw back and press the tip fully over the seal on the back of the trigger.
  4. REUSE (OPTIONAL): To reuse the straw, cut off and discard the tip containing cured foam near the end of the straw, then bend the straw back to a straight position and spray foam again.
  • Trim overfilled gaps with a serrated blade once the foam has cured.
  • Tacky foam on solid surfaces dissolves with acetone.
  • Foam on skin or once cured must be mechanically removed or allowed to wear off over time.
  • Cure rate depends on temperature, humidity, and the size of the foam bed.
  • Cold temperatures adversely affect performance.
  • Keep away from children and pets.
  • The foam is extremely sticky. Use protection to avoid all contact with skin and eyes, such as gloves and safety glasses. Protect surfaces and use ventilation or proper respiratory protection.
  • This product is a flammable gas, and the contents are under pressure. Keep away from heat, sparks, and open flame; do not smoke, and extinguish all flames and pilot lights during use and until all vapors are gone. Do not puncture or incinerate the can, or expose it to temperatures over 120°F.
  • Cured foam may present a fire hazard if exposed to a flame or temperatures above 240°F.

Frequently Asked Questions

Does Tomcat Rodent Block Expanding Foam Barrier contain pesticide?

No. It's a pesticide-free foam sealant that works as a physical barrier. It’s specifically formulated to block mice from entering through gaps and cracks around your home.

Yes. It's labeled for inside and outside use as a rodent barrier.

The foam is tack-free in about 15 minutes and fully cures in about 8 hours, depending on temperature, humidity, and the size of the foam bed (how much you apply).

Yes. Tomcat Rodent Block is considered a flammable gas. The contents in the container are under pressure. The can should be kept away from heat, sparks, and open flame, and keep it away from children and pets.

The Tomcat Rodent Block straw can be reused for up to four weeks after first use by cutting off the cured tip and bending the straw back to spray again, though restarting isn't guaranteed to work.

Rated 5 out of 5 by from good very good product very easy to usefull no any other issues
Date published: 2024-07-03
Rated 5 out of 5 by from Rodent Block Works Excellent product. Follow the directions and see it work with zero worries. I no longer have any issues with mice or rodents of any kind. The product is very user friendly and no mess. Try this product and you will be impressed.
Date published: 2023-02-28
Rated 5 out of 5 by from Rodent Block will keep the pest out Tomcat Rodent Block is an effective way to keep rodents out of buildings. Use on cracks and crevices in foundations or anywhere else around home. I used around pipes coming up through my floors under kitchen sink. I also used in my crawl space under house. Product not only keeps out rodents, it helps insulate home sealing out drafts. I have used around my home any place pipes or wires have been run, This blocks places were rodents can get in the home. I recommend following directions because product can be messy if you don't follow directions.
Date published: 2022-07-15
Rated 5 out of 5 by from Love it! Foam Barrier doesnt let anything get past it. A great product for getting the job done! I had an issue with mice getting under my sink, from around a dishwasher hose gap. It blocked them out, and havent seen them since. I also have recently used it around a gap by my garage door just in case!
Date published: 2021-05-08
Rated 5 out of 5 by from Easy to use! I bought this product around a few months ago. I followed the directions and it filled all the voids in the seams of the wood siding. It was simple and easy to use, as long as you follow the directions.
Date published: 2021-02-28
Rated 5 out of 5 by from Fast expanding Seals great, easy to use. Price isn’t to high. You just put the straw that comes with it in nozzle and in the area that needs to be seal and pull the trigger. You don’t need a lot as it expands quickly.
Date published: 2020-12-02
Rated 5 out of 5 by from EASY TO USE I TRIED THIS FOR THE FIRST TIME AND IT REALLY WORKS. USE IT ANYWHERE YOU HAVE A CREVICE EVEN IF IT IS JUST FOR AIR INFILTRATION. IT SEALS THE OPENING COMLETELY. YOU CAN TRIM OFF ANY EXCESS. VERY PLEASED.
Date published: 2020-11-18
Rated 5 out of 5 by from Product works great I bought this because my neighbor started having large field rats in his yard.I sprayed this product in every hole I could find and so far the rats have stayed in his yard. Product has worked great so far.
Date published: 2020-11-13
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