Can you use on basement cracks

The foam is made to fill voids in boats for flotation and is not structurally strong. That said, it will fill cracks as long as you're not depending on it for strength. After it is poured, it will expand. It pours like water so it might be difficult to get it where you want it on vertical walls. Easy to pour on a floor crack but not strong enough to walk on.

What is the flotation range for the 2g kit? will it support 1500 to 2000 lb floating dock?

1 cubic foot of 2 lb. Polyurethane close cell foam will float 60.2 lbs. per US Coast Guard regulations of Flotation. So by the their formula it should float about 480 lbs. of weight. So no you would need 6 2 gallon kits to float just the dock. That's not counting any weight of people that stand on the dock ....

How much does this cover?

A two gallon kit (1 gallon resin + 1 gallon activator) will yield 8 cubic feet which is equal to 59.84 gallons. 1 cubic foot equals 7.48 gallons.

Can the 2lb product be used to fill the void in my kayak made of high-density polyethylene or will it deform?

It should work just fine. Use a smaller amount at first and then mixed more as needed until the void was filled. I was not not sure how much it would expand so I started with a smaller amount . It expands and hardens quickly. I don't think it will deform your kayak, but it will expand out of any cracks and holes, but you can cut off any foam you don't want.

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TotalBoat 2 Lb Density Expanding Foam Kit, 2 Part Closed Cell Pourable Polyurethane for Boat Flotation, Insulation, Reinforcement and Void Filling (2 Gallon Kit)

Product ID: 23482186

Details

Brand
TotalBoat
Manufacturer
TotalBoat
Material
Polyurethane
Number of Packs
1
Recommended Uses For Product
Thermal Sound

🌊94% closed cell - superior water resistance

🧪1:1 mix ratio - foolproof easy blending

⚖️2 lb density - lightweight yet durable

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Description

🌊 Float Above the Rest with TotalBoat’s Next-Level Expanding Foam!

EFFORTLESS 1 1 MIXING - Simplifies application with a perfect resin-to-activator ratio for rapid, consistent curing.
RAPID EXPANSION HARDENING - Expands quickly and solidifies in ~5 minutes at optimal temps, saving you time on every project.
VERSATILE MULTI USE SOLUTION - Ideal for flotation, insulation, soundproofing, and gap filling—perfect for boaters and DIY pros alike.
MARINE GRADE CLOSED CELL FOAM - Ensures long-lasting buoyancy and resists water, oil, and solvent damage for ultimate durability.
GENEROUS COVERAGE LOAD CAPACITY - 2 Gallon kit yields 8 cubic feet, supporting up to 300 lbs of flotation—built for serious marine safety.

TotalBoat’s 2 lb density, two-part closed cell polyurethane foam kit delivers fast-setting, lightweight buoyancy and insulation for marine and DIY projects. With a simple 1:1 mix ratio and rapid expansion, it offers superior water resistance and structural reinforcement, meeting US Coast Guard standards. Perfect for filling voids, soundproofing, and thermal insulation, this 2-gallon kit covers 8 cubic feet and supports up to 300 lbs of flotation, making it a must-have for professional-grade boat maintenance and beyond.

Specifications

ASIN	B01AAP3ILC
Best Sellers Rank	#22,316 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #24 in Boat Painting Supplies
Brand Name	TotalBoat
Coverage	8 cubic feet
Customer Reviews	4.6 4.6 out of 5 stars (1,035)
Included Components	resin and hardener
Item Type Name	polyurethane foam
Item Weight	20 Pounds
Manufacturer	TotalBoat
Manufacturer Part Number	TB-FOAM
Material Type	Polyurethane Resin
Model Number	TB-FOAM
Recommended Uses For Product	Thermal Insulation, Sound Insulation, Flotation, Gap Filling, Nonstructural Support
UPC	811932022103
Unit Count	256.0 Fluid Ounces

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383573CFA

Duties & taxes included

In stock

Sold byAmazon Cote D' IvoireDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Cote D' Ivoire.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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