What is the compressive strength of the foam, in PCF?

They only give the compressive strength in PSI and that is 78 for the 4lb foam

What is the viscosity of the liquids before they mix?

The best way to describe it would be like warm pancake syrup.

i'm new at this..what does density mean i see 2lb..4lb..6lb? thanks

Think of it as hardness or strength. The 2lb will be more sponge like 6 will be harder.

Can you use pole foam to insulate the walls of a shop? Does it go thru a heat? Will it blister the tyvek or metal on the outside?

It doesn't fill a very big volume like spray foam. It is very liquid and comes out of any cracks. Will set up hard as a rock though.

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Fiberglass Supply Depot 4 Lb. Density Expanding Pour Foam, 2 Part Polyurethane Closed Cell Liquid Foam for Boat and Dock Flotation, Soundproofing, Filling Voids, and Insulation (1 Gallon Kit)

Fiberglass Supply Depot 4 Lb. Density Expanding Pour Foam, 2 Part Polyurethane Closed Cell Liquid Foam for Boat and Dock Flotation, Soundproofing, Filling Voids, and Insulation (1 Gallon Kit)

Product ID: 692715743

Details

Brand
Fiberglass
Manufacturer
Fiberglass
Material
Foam Resin
Number of Packs
1
Recommended Uses For Product
Flotation

📏2 cubic feet coverage per kit

⏱️5 min full expansion time

🛥️4 lb density for superior flotation

2197.80 DT

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Description

🛠️ Float, fill, and fortify—foam that works as hard as you do!

RAPID EXPANSION - Foam fully expands in just 5 minutes, letting you move fast and finish projects on your schedule.
PRECISION MIXING - Equal parts Part A and B with a 45-second working window ensures professional-grade results every time.
MULTI USE MASTERY - From soundproofing and insulation to sculpting and filling voids, this foam adapts to your creative and functional needs.
BUOYANT POWERHOUSE - 4 lb density foam engineered to support moderate loads—perfect for boats, docks, and gas tank stabilization.
VERSATILE COMPATIBILITY - Seamlessly laminates with polyester, epoxy, or vinyl ester resins without melting—ideal for custom builds and repairs.

Fiberglass Supply Depot’s 4 lb density expanding pour foam is a 2-part polyurethane closed-cell liquid foam kit delivering 2 cubic feet of durable, buoyant, and insulating material. Designed for boat and dock flotation, soundproofing, and filling voids, it cures quickly and bonds with common resins, making it a versatile solution for professionals demanding reliable performance and precision.

Specifications

ASIN	B08T2195F8
Brand Name	Fiberglass Supply Depot
Coverage	2 cubic feet
Customer Reviews	4.4 4.4 out of 5 stars (255)
Manufacturer	Fiberglass Supply Depot Inc.
Manufacturer Part Number	FBAPOLY4LBGK
Material Type	Foam,Resin
Number of Items	1
Number of Packs	1
Recommended Uses For Product	Flotation, Soundproofing, Insulation, Filling Voids
UPC	819794022934
Unit Count	192 Fluid Ounces

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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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2197.80 DT

Duties & taxes included

In stock

Sold byAmazon TunisiaDelivered 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 Tunisia.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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