According to their Technical Data Sheet, 1 can will extrude a 3/8” bead approximately 134.0 ft under ideal conditions. So the cubic volume is 0.375" x 0.375" x (134' x 12)" = 226.125 cubic inches. 1 cubic foot = 1728 cubic inches. Therefore it would take about 7.6 cans to produce a cubic foot.

Can i apply this on a hot surface like car exhaust? Doesn't it catch fire?

I've used RTV silicone for minor muffler holes, good to 650 F. But it is flexible and doesn't stick to anything so you need to get it globbed onto both sides so it holds. Unfortunately the portion of a muffler that usually fails is where the pipe comes in (due to welding). JB Weld might work better there.

If this is injected between sheetrock walls, will it reduce sound transfer?

If you want to insulate the walls between rooms, it would be better to remove the sheetrock and use a spray foam insulation product, rather than a spray foam sealant. Bats of heavy rock wool might also be good sound insulation. A spray foam product expands for a minute or two and you risk popping the nails/screws holding the sheetrock in place if there is not enough room for it to expand fully. Trying to deaden the sound without removing the sheetrock would require punching lots of holes in the walls and spraying the foam through the holes, and then patching all of the holes and repainting. This will deaden the sound between rooms, but it will require a lot of cans to do it.

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Tite Foam Big Gaps

Product ID: 292934057

Details

Brand
LOCTITE
Item dimensions L x W x H
6.5 x 6.5 x 20
Item weight
1 Pounds
Material
Plastic
Style
Foam sealant

📏Fills gaps up to 3 inches

🧱Bonds to wood, concrete, metal & more

🛡️UV-resistant polymer foam

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AED 88

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Description

🚀 Seal Big, Save Bigger: The Pro’s Choice for Gap-Free Living!

MAX GAP FILLER 📏 - Expands to seal and insulate large gaps up to 3 inches—no draft left behind.
BUILT TO LAST 🛡️ - Premium polymer formula resists harsh UV rays for durable, long-term protection.
UNIVERSAL ADHESION 🧱 - Strongly bonds to a wide range of materials including wood, brick, metal, and PVC.
FAST CLEAN AND EASY APPLICATION ⚡ - Dries quickly with minimal mess—perfect for professional-grade DIY projects.
FLEXIBLE SEAL FOR DYNAMIC SPACES 🔄 - Withstands building movement without cracking or losing its seal.

Loctite Tite Foam Big Gaps is a high-density, UV-resistant expanding foam sealant designed to fill, insulate, and protect large gaps up to 3 inches. Its superior adhesion bonds to most building materials, while its flexible polymer structure endures building movement without cracking. Ideal for professional and DIY use, it dries fast and offers long-lasting durability against weather and pests.

Specifications

ASIN	B07Q3WPB6B
Brand Name	LOCTITE
Color	white
Compatible Material	Wood
Customer Reviews	4.2 4.2 out of 5 stars (10,898)
Global Trade Identification Number	00079340652385
Included Components	Loctite TITE FOAM Insulating Foam Sealant, Big Gaps, 12-Ounce Can
Item Dimensions	6.5 x 6.5 x 20 centimeters
Item Form	Foam
Item Type Name	foam sealant
Item Weight	454 g
Manufacturer	HENKEL ADHESIVES
Material Type	Plastic
Model	2975888
Number of Items	1
Part Number	2975888
Style Name	Foam sealant
Surface Recommendation	Miscellaneous
UPC	079340652385
Unit Count	1 Count
Water Resistance Level	Water Resistant

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