GREAT STUFF Pestblock

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

Update 12/1/2024: Previously using the foam applicator tube had been challenging and messy. Yet, I don't appear to be smart enough to operate the new "Smart Dispenser" tip. I simply can't get the Smart Dispenser tips to work properly or sometimes at all. I'll try another brand with the old tip style. Living in a rural setting means taking a hands-on approach to keep unwanted critters at bay. My proximity to neighbors with cattle and chickens, along with my encounters with various small wildlife, necessitates a strong defense against potential intruders. Fifteen years ago, I discovered a method that has proven effective: installing copper mesh secured with Great Stuff 99112809 Smart Dispenser Pestblock foam under the bottom edges of my home's James Hardy cement siding. This combination has successfully prevented entry from various pests. The Pestblock foam is particularly noteworthy for its durability and pest-deterring capabilities. However, application can be messy and requires careful preparation. I learned the hard way that protective gear such as gloves, long sleeves, and pants are non-negotiable, as the foam adheres to skin stubbornly, leading to an uncomfortable removal process. I'm currently applying the same technique to seal the bottom openings of a steel shop building, aiming to deter mice without creating an entirely impenetrable barrier. Despite the application challenges, Great Stuff Pestblock remains my go-to solution for effective pest control in a rural setting. Its performance outweighs the cleanup inconvenience, making it a valuable tool in maintaining a pest-free environment.

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!

This is truly Great Stuff. It sealed the holes in my garage perfectly

This is great at plugging up those holes that cold air or mice can fit through to find ways into your home. Also can plug the hole in your eves the critter or even wasps can get into.

We bought this for the spaces between the sidewalk, joints and by the house. We specifically got gray so it would blend in. Ha! Joke's on us. Within a day it was turning yellow, then turned bright orange. We're going to try painting it next so it won't stick out so badly. Also, it expands big time. It definitely needs to be trimmed off.

This product was messy. The repair was unable to use it completely because when you tried to tighten the applicator onto the can, it never became secure. So all the product goes out the side.

After drying I cut some of the stuff away that expanded and basically behind the stuff that expanded was almost nothing but air so I'm guessing maybe it was too cold outside I don't know but it's not as good as I would have liked it to be