will this keep mice out?

From the manufacturer since I requested how it deters critters from eating it. Dear Mr. U******ff, Thank you for your inquiry. Great Stuff™ Pestblock Insulating Foam Sealant is a pesticide-free method to physically block critters, bugs and other pests from your home. The formulation contains an additional distasteful agent that strongly discourages consumption of the foam and protects the integrity of the physical barrier, keeping pests outside where they should be. The sealant blocks insects and pests from entering the home by sealing gaps, cracks and holes where they commonly enter. In addition to blocking pests from the home, Great Stuff Pestblock Insulating Foam Sealant air-seals holes, gaps and cracks to help keep air from leaking out of or seeping into the home’s envelope, saving on heating and cooling costs. Best regards, _______________________ Mike DuPont Contact Center Regional Telephone Numbers DuPont Website Facebook logo Indeed Logo Twitter Logo Original Inquiry Information provided: I'm trying to find out the difference between pest block and the other products. I have used several your products including the pond one but the pest block is new to me. I've tried to find the information and I see nothing that makes it different in your literature. I found one post that said it had denatonium benzoate but I don't is in your literature or msds. Specifically what makes it different? Specific Products of Interest Application Exterior Foundation issues Great Stuff™ Pestblock,Great Stuff Pro™ Pestbloc

can this be used to fill in crack in concrete?

Yes but only a large deep crack. It will dry and swell out of the intended space and need to be trimmed. It will not be hard like concrete, and it doesn't stay gray. It turned yellow like all other Great Stuff I've used.

Can this be use to insulate outlets? We have ants coming in and out of ours.

Do not use any expandable foam to seal outlets. It can push things out of place; additionally, it makes it very difficult and messy to ever change your outlets later on, as the foam expands and can seal up the wires. I have seen this once, in a house, and it was not a good idea. To seal things up, I would suggest silicone caulking or something that will not expand.

can a small amount of the spray be flushed down the toilet?

No! Please don't do that!!! This stuff is not only water resistant (won't dissolve!!!), it is rigid and would be like flushing a plastic toy down your toilet! Just toss it in the garbage!

Deliver to Morocco

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Great Stuff99112809 Smart Dispenser Pestblock, Gray

Great Stuff99112809 Smart Dispenser Pestblock, Gray

Product ID: 149918408

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Details

Material
Plastic
Brand
Great Stuff
Style
Pestblock
Item Weight
12 Ounces
Item dimensions L x W x H
3 x 3 x 8

🔄Reusable Smart Dispenser lasts 30 days

🧱Expands up to 1 inch for airtight sealing

⏱️Tack-free in 10-15 minutes, trims in 1 hour

Description

🚫🐜 Block pests and drafts like a pro—seal smarter, not harder!

VERSATILE BARRIER - Bonds seamlessly to wood, metal, masonry, glass, and most plastics—perfect for both interior and exterior use.
SEAL WITH PRECISION - Smart Dispenser offers drip-free, controlled foam application for flawless sealing every time.
ENERGY SAVING SHIELD - Creates a long-lasting, airtight, and water-resistant seal that boosts your home's energy efficiency by blocking drafts and pests.
STAY READY STAY SMART - Reusable dispenser stays attached for up to 30 days, so you never lose momentum on your DIY or professional projects.
FAST TRACK YOUR PROJECTS - Dries tack-free in just 10-15 minutes and cures rigid in 1 hour, so you can trim, sand, and paint without delay.

Great Stuff 99112809 Smart Dispenser Pestblock is a high-performance expanding foam sealant designed to fill gaps up to 1 inch, creating airtight, water-resistant seals. Featuring a reusable dispenser for up to 30 days of drip-free use, it bonds to a wide range of materials and cures quickly for fast project completion. Ideal for blocking pests and improving energy efficiency in both interior and exterior applications.

Specifications

Material	Plastic
Brand	Great Stuff
Style	Pestblock
Item Weight	12 Ounces
Item dimensions L x W x H	3 x 3 x 8 inches
Compatible Material	Wood, Metal, Masonry, Glass, Plastic
Water Resistance Level	Water Resistant
Item Form	Spray
UPC	041343012084
Unit Count	1.0 Count
Global Trade Identification Number	00041343012084
Number of Items	1
Color	Gray
Manufacturer	Dow
Part Number	99112809
Item Weight	12 ounces
Product Dimensions	3 x 3 x 8 inches
Item model number	99112809
Size	12 Ounce (Pack of 1)
Item Package Quantity	1
Number Of Pieces	1
Included Components	SMART DISPENSER straw
Batteries Included?	No
Batteries Required?	No
Warranty Description	Warranty

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