Will can spray overhead? switched recessed lights to cool led & want to fill wood box holding recessed light can to sop heat loss.

Since they recommend turning the can upside down to clear the gun for storage, it will not spray that way, however you can attach a length of clear tubing to the spray tip and get an overhead gap filled.

What is coverage at 1 inch thickness

Thank you for your interest in our product. The yield on this product is each can will cover 970 linear feet based on 3/8" bead of foam. Unlike the 2 part foams, this product is meant for gaps of 3" or less. Thank you

How many cans do I need to spray under my 21 inch acrylic tub?

you have not provided enough information to answer the question. Clarify the size of the area you want to place this foam. Do you plan to just fill the area under the bottom of the tub or completely around the total under side of the tub - bottom and side walls? Example for bottom of tub: 20 inches wide x 60 inches long x 4 inches high. Given these dimensions there is plenty of material to fill that area. If you plan to go around the sidewalls - you will need a few more cans which you can buy at a hardware store.

will it work on metal siding on concrete?

This will stick to both surfaces.

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Fully operational. Shipping worldwide, on schedule.Duty & taxes paid at delivery

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GREAT STUFF PRO Gaps & Cracks 24 oz Spray Foam Insulation Sealant

Product ID: 8324112

Details

Brand
GREAT STUFF
Item Weight
1.5 pounds
Material
Polyurethane
Style
24 oz
Water Resistance Level
Water

🔥Fireblock rated safety

❄️Cuts up to 40% energy loss

🇺🇸Made in USA quality

5451 kr

Duties & taxes included

In stock

Sold byAmazon NorwayDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🔥 Seal smart, save big — the pro’s choice for airtight perfection!

SEAL BIG GAPS FAST - Expands up to 3 inches to fill and insulate large cracks and penetrations with precision.
QUICK DRY JOBSITE READY - Tack-free in under 10 minutes and trim-ready in just 60, speeding up your project timeline.
BUILT IN FIREBLOCK PROTECTION - Bright orange foam that meets fire code to slow flames and smoke spread in hidden spaces.
ENERGY EFFICIENCY GAME CHANGER - Reduces heating and cooling loss by up to 40%, slashing utility bills and carbon footprint.
TRUSTED AMERICAN CRAFTSMANSHIP - Proudly manufactured in the USA with premium polyurethane foam for lasting durability.

GREAT STUFF PRO Gaps & Cracks is a professional-grade, polyurethane spray foam sealant made in the USA. It expands up to 3 inches to create a water-resistant, airtight, and fireblock-rated seal around pipes, vents, and framing. Designed to reduce energy loss by up to 40%, it dries quickly—tack-free in minutes and trim-ready in an hour—making it ideal for efficient insulation and code-compliant fire safety in residential and commercial projects.

Specifications

Asin	B0044UYJXG
Best Sellers Rank	#59,596 in Tools & Home Improvement (See Top 100 in Tools & Home Improvement) #210 in Hardware Sealers
Brand Name	GREAT STUFF PRO
Color	Orange
Compatible Material	Most Plastics
Customer Reviews	4.6 4.6 out of 5 stars (298) 4.6 out of 5 stars
Included Components	12-Gaps & Cracks 24oz (1 Case)
Item Form	Foam
Item Highlight	Pack of 12, Closed Cell, Polyurethane, Fireblock, Expanding Spray Foam Sealant, Insulates & Seals Gaps Up to 3"
Item Weight	1.5 pounds
Manufacturer	Dow
Material Type	Polyurethane Foam
Number Of Items	12
Part Number	GSGC24-12
Style Name	24 oz
Surface Recommendation	Pipe
Unit Count	288 Ounce
Upc	850012619963
Water Resistance Level	Water Resistant

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Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

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