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

⏱️5 min cure time - rapid hardening

⚖️2 lb density - ultra lightweight strength

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Description

🌊 Float Above the Rest with TotalBoat’s Rapid-Set Marine Foam!

MARINE GRADE DURABILITY - US Coast Guard compliant foam resists water, oil, and solvents—perfect for long-lasting boat flotation and insulation.
EFFORTLESS 1 1 MIX POUR - Simplify your project with an easy, equal-part formula that expands rapidly for flawless fills every time.
VERSATILE MULTI USE SOLUTION - From soundproofing and thermal insulation to gap filling and sculpting, this foam adapts to all your creative and repair needs.
PRECISION THERMAL PERFORMANCE - Optimized for 75-85°F to ensure maximum expansion and rigidity, delivering professional-grade results.
BULK COVERAGE WITH FOMO WORTHY YIELD - 2 Gallon kit covers up to 8 cubic feet, providing buoyancy for up to 300 lbs—don’t get left behind on safety and performance.

TotalBoat’s 2 lb density expanding polyurethane foam kit offers a fast-curing, lightweight, and 94% closed-cell solution engineered for marine flotation, insulation, and void filling. US Coast Guard compliant and optimized for warm conditions, it delivers superior water resistance and durability, making it ideal for boat repair, soundproofing, and thermal insulation with easy 1:1 mixing and rapid 5-minute curing.

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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C$24111

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In stock

Sold byAmazon NicaraguaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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