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)

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

🌊94% closed cell - superior water resistance

🧪1:1 mix ratio - foolproof easy blending

⚖️2 lb density - lightweight yet durable

$U19661

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Description

🌊 Float Above the Rest with TotalBoat’s Pro-Grade Expanding Foam!

EFFORTLESS 1 1 MIXING - Simplifies application with a perfect resin-to-activator ratio for fast, consistent results every time.
RAPID EXPANSION CURE - Foam expands quickly and hardens in ~5 minutes at optimal temps, saving you time on projects.
MARINE GRADE DURABILITY - Closed-cell structure resists water, oil, and solvents, ensuring long-lasting flotation and insulation.
VERSATILE MULTI USE FOAM - Ideal for boat flotation, soundproofing, thermal insulation, and filling voids with precision.
GENEROUS COVERAGE LOAD SUPPORT - 2-gallon kit yields 8 cubic feet and supports up to 300 lbs buoyancy—built for serious marine projects.

TotalBoat 2 Lb Density Expanding Foam Kit is a US Coast Guard compliant, two-part polyurethane foam designed for marine flotation, insulation, and void filling. Featuring a simple 1:1 mix ratio, rapid 5-minute cure time, and 94% closed-cell structure, it delivers lightweight, water-resistant durability ideal for boat repair and soundproofing. The 2-gallon kit covers 8 cubic feet and supports up to 300 lbs of buoyancy, making it a trusted choice for professionals and enthusiasts alike.

Specifications

ASIN	B01AAP3ILC
Best Sellers Rank	#37,303 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #36 in Boat Painting Supplies
Brand	TotalBoat
Brand Name	TotalBoat
Coverage	8 cubic feet
Customer Reviews	4.6 out of 5 stars 1,043 Reviews
Included Components	1 Gallon Resin, 1 Gallon Activator
Item Type Name	polyurethane foam
Item Weight	20 pounds
Manufacturer	TotalBoat
Manufacturer Part Number	TB-FOAM
Material	Polyurethane Resin
Material Type	Polyurethane Resin
Model Number	TB-FOAM
Number of Items	1
Number of Packs	1
Recommended Uses For Product	Boatbuilding & Repair, Fiberglass Plug Making, Gap & Void Filling, Marine Flotation, Sculpture & Prop Making, Sound Dampening, Thermal Insulation Recommended Uses For Product Boatbuilding & Repair, Fiberglass Plug Making, Gap & Void Filling, Marine Flotation, Sculpture & Prop Making, Sound Dampening, Thermal Insulation See more
UPC	811932022103
Unit Count	256 Fluid Ounces

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$U19661

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In stock

Sold byAmazon UruguayDelivered 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 Uruguay.

Secure transaction

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