GREAT STUFF GREAT STUFF PESTBLOCK
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Items Included in this Collection


Item #1222280 |
Model #99112809
Reusable for up to 30-days
Blocks critters, bugs and other pests from your home
Pesticide-free
No drip dispensing, eliminates mess
Won’t harm bees
Expands to fill, seal, and insulate gaps up to 1 inch
Forms a long-lasting, airtight, weather-resistant seal
Adheres to wood, metal, masonry, glass and most plastics
Interior/exterior use
General | |||
|---|---|---|---|
Dry Color | Black | Insulation Type | Closed cell |
Series Name | Pestblock | Net Contents (oz.) | 12 |
Type | Canister | Dry Time | 60-minute |
Use Location | Indoor/Outdoor | Dispenser Type | Smart dispenser |
Features | |||
|---|---|---|---|
Fire Resistant | No | Sound Barrier | No |
Formaldehyde Free | Yes | Vapor Retardant | Yes |
Mold Resistant | Yes | Water Resistant | Yes |
Paintable/Stainable | Paintable/Stainable | ||
Certifications | |||
|---|---|---|---|
CA Residents: Prop 65 Warning(s) | No | GREENGUARD Gold Certified | No |
ENERGY STAR Certified | No | ||
Warranty | |||
|---|---|---|---|
Warranty | None | ||
Compatibility | |||
|---|---|---|---|
For Use in Basements | Yes | For Use in Floors | No |
For Use in Crawlspaces | Yes | For Use in Garage Doors | No |
For Use on Plastic | Yes | For Use in Masonry | Yes |
For Use on Metal | Yes | For Use in Plumbing | Yes |
For Use on Wood | Yes | For Use in Vents | Yes |
For Use in Ceilings | Yes | For Use in Walls | Yes |
For Use on Insulation | Yes | For Use in Windows | No |
For Use in Attics | Yes | Fits 2 x 4 Walls | Yes |
For Use in Doors | No | Fits 2 x 6 Walls | Yes |
For Use in Duct | Yes | For Use on Glass | Yes |
For Use in Electrical | Yes | ||
Dimensions | |||
|---|---|---|---|
R-Value per Inch | 3.7 | Maximum R-Value | 3.7 |
Miscellaneous | |||
|---|---|---|---|
UNSPSC | 30141500 | ||
Ratings may include incentivized customer reviews.
What Customers Are Saying
Customers overwhelmingly praise this pest-blocking foam for effectively sealing gaps and preventing insects and rodents, with many reporting dramatic reductions in ants, cockroaches, spiders, and mice. The reusable dispenser and precision nozzle are frequently highlighted as standout features, with users appreciating the ease of application and ability to trim and paint the cured foam. Most find it successfully fills cracks between one-eighth and one-quarter inch wide, creating airtight seals that eliminate drafts. A small number report dispenser clogging or inconsistent spray patterns, and a few note the foam appears cream-colored rather than gray. Despite minor drawbacks, most customers consider it highly effective and worth the investment.
Customer review summary generated by AI, including incentivized reviews.Single Use only
Went to Lowes in person, described what I needed to two associates, got this bottle, read the instructions, but neither the bottle nor the employees told me that this is typically single use. I just used it once along one cabinet, and the next day its unusable. Apparently you cant easily buy replacement nozzles either. Super disappointed, what a waste of money.
Mixed feelings.
My biggest beef with "Great Stuff" is the nozzle attachement which is not tight and easily unscrew causing a mess if you miss it, so always wear gloves. This "special effect" could be fixed by making the tread much more fine. Now, this "new nozzle" is even worse than the open tube: the trigger only opens the tip and you still have to push the tip sideways as before so, now you have to use two hands. I have an idea for Great Stuff: 1) provide the old nozzle replacements, like 5 of them in a plast...
Borderline scam
I've been using great stuff for a long time, and it's not something I'd necessarily call a pleasure to use. This version is no different. Voids are formed, expansion is limited, so you typically have to do a 2nd pass once dry. These, however, are ridiculously short-lived. I bought two cans and I barely got 20 linear feet of 1 inch beads. That's over a dollar a foot. I could have just bought a small roll of fiberglass insulation and been better off.
Verified Pro
Hello treyus30, We are sorry to hear that our product did not meet your expectations and would like to hear more about your experience. If you would...

Yummy bug formula
Cool foam. I didn't think bug's ate the other stuff until I saw this green can. Thought this was the organic version and then learned it was for bug resistant foam. So hopefully they will be fooled by the other non bug foam. If you are a bug reading this, please, consume and tell your friends.
Verified Purchaser
Hello Dennis, thank you for the review and we are glad that our products are working great for you.

product not as advertised
If you are buying this foam because the can says it is a gray color,do not buy it ! I purchased a can to fill some voids in wood near my gray deck, and the product is not gray but the standard yellow color ! I tried to contact Dupont to tell them this issue and to get a reimbursement for the wasted money I spent and they refused my claim. Also, the advertised no drip straw does not work at all. Definetely not worth the money !!!!!
Hello tomg, We are sorry to hear that our product did not meet your expectations and we would like to hear more about your experience. If you would ...

Worked just as it said!
Used this to help seal a missing wood floorboard. Easy to apply, cut easily when dried (and that was fun!). No bugs or dirt are getting in now! And loved that it was grey, not that bright yellow.
Verified Purchaser
Hello Mike, Thank you for the great review and we are glad that our product worked for you.

Received an expired product
Ordered this for delivery and received a product with a past expiration date. Disappointing.
Dries yellow if exposed to sunlight
This product appears to fill in the gaps around our basement windows okay but it will not stay grey in color with any sunlight exposure (turns yellowish). The dispenser attachment often popped off while applying the foam resulting in wasted material. I hope they redesign these cans and tweak the formula so the color actually stays the color that's on the label. Sure, you can paint the foam, but that's just extra work.
Hello Marslu87, Great Stuff™ Insulating Foam Sealant products can be used outdoors. However, the products are very sensitive to UV light. Exposure to...

waste
This is not worth buying did not come out of the straw. It came out of the where you screw the straw onto on top of the can and went everywhere, except in the holes I wanted it to piece of c*** product fire. Beware, not good at all. I got it on my skin. I can't get it off.So if you want something tn
Hello QueenSwfl, We are sorry to hear that our product did not meet your expectations and we would like to hear more about your experience. If you w...

Cures too fast in the nozzle, too thick
Great foam, poor nozzle design. By the time an assistant cuts the nozzle and hands you the can in a tight space, the foam is already curing in the nozzle. GreatStuff needs to slow the foam cure and decrease its density so the product is functional.
Verified Purchaser
Hello Core365, Great Stuff™ cans with the Original Dispenser are considered one-time use and will seal shut if left to sit for more than 2 hours afte...







Hello Alesd, Thank you for the review and I will pass your input on to our design team.