GREAT STUFF Pestblock

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

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 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.

I am building a house and have used a lot of gap filler. This one with the new dispenser is amazing. They fixed the "straw problem" and this works really well at all angles. Fills decently. And the best part is I was actually able to use the entire can without it clogging. Also was able to store a can and come back and reuse a week later. I won't buy one without this type of dispenser ever again.

Just used this stuff to fill gaps in my brick and mortar where yellow jackets had worked their way in between to make a nest and it filled the gaps right up. Heads up it’s very sticky so have some throw-away rags ready to use. Dried gray so the look matches the rest of the brick and mortar around it.

Than that of the manufacturer, Dupont. First, the spray handle never tightens: it spins around like a top. This crap is a mess.. I ruined a pair of gloves cleaning up the drips that this product doesn't produce. There is no foam per se. I thought it would come out like the foam you see in the picture that's orange. That's what I get for thinking. The product dries white, not grey. I'll spray paint the area but I shouldn't have to do that. This is like cake icing and it drips all over. Never, never, never again. Dupont, you got my $ once; I hope you spent it on something that wasn't frivolous because it's the last you'll get from me. There is zero quality, application is nearly impossible, for lack of a better word. I wisj I could mail this crAp as is back to Dupont and then maybe they can tell us all about the versatility of shoving it up something else that is more apropos. The ad says the item can be returned but that's a lie. I hate that. If an item can't be returned, why have a return policy?

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.

Thai stuff is great. The easy to use can actually does stop when u want reducing waste. You don’t have to use can all at once ! It’s great to not waste a can and be able to grab it and use for different projects. The color was to be grey but dried more like a cream white color

This filled the holes in my basement wall perfect and nobody’s biting thru that

Pestblock spray does what it says on the tin — it seals cracks and crannies into a hardened barrier. It works… up to a point. But if the pests are truly determined, they’ll find a way. Case in point: I’ve got one mouse I’ve named Charles Bronson. Every night he chips away at the seal like a career criminal in The Great Escape, tunneling under my fireplace with a level of grit and persistence that deserves its own film franchise. Pestblock may deter the average mouse, but Charles? Charles sees it as character development.

I used it to seal off areas where mice were getting into my garage and also to seal off spaces where wintry draft were coming in the garage and it did the job. No more drafts!

We used this at our RV to fill holes inside where the RODENTS can squeeze in. Pests won't chew threw it and no smell.