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 - lightweight yet durable

COP 1152856

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Sold byAmazon ColombiaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

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

EFFORTLESS 1 1 MIX POUR - Simplify your project with a perfect ratio and fast expansion—no guesswork, just results.
CUSTOMIZABLE FINISH READY - Easily carve, shape, and coat with polyester or epoxy for a seamless, professional finish.
VERSATILE MULTI USE PERFORMANCE - From soundproofing to thermal insulation and void filling, this foam adapts to all your professional needs.
MARINE GRADE BUOYANCY PROTECTION - USCG-compliant foam keeps your boat afloat and safe, even when hull integrity is compromised.
PRECISION APPLICATION IN WARM TEMPS - Optimal 75-85°F working range ensures flawless expansion and curing every time.

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. It features a lightweight 2 lb density, rapid 5-minute cure time at optimal temperatures, and 94% closed cell structure for superior water resistance. Ideal for professional boatbuilders and DIY enthusiasts, it offers easy 1:1 mixing, excellent buoyancy, and versatile applications including soundproofing and thermal insulation. Available in 2 quart and 2 gallon kits, it delivers up to 8 cubic feet of durable, shapeable foam that can be coated for UV protection.

Specifications

ASIN	B01AAP3ILC
Best Sellers Rank	#28,058 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #33 in Boat Painting Supplies
Brand Name	TotalBoat
Coverage	8 cubic feet
Customer Reviews	4.6 4.6 out of 5 stars (1,038)
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 Type	Polyurethane Resin
Model Number	TB-FOAM
Recommended Uses For Product	Boatbuilding & Repair, Fiberglass Plug Making, Gap & Void Filling, Marine Flotation, Sculpture & Prop Making, Sound Dampening, Thermal Insulation
UPC	811932022103
Unit Count	256 Fluid Ounces

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