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: 273973809

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

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Description

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

RAPID EXPANSION - Expands fully in just 5 minutes, letting you work fast without sacrificing precision.
PRECISION MIXING - Two-part formula with a 45-second working time ensures exact control and flawless results every time.
RESIN COMPATIBLE - Can be laminated with polyester, epoxy, or vinyl ester resins without melting—ideal for custom finishes.
BUOYANT POWERHOUSE - 4 lb density closed-cell foam ensures unmatched flotation and durability for boats and docks.
VERSATILE APPLICATION - Perfect for soundproofing, insulation, filling voids, and even sculpting or casting projects.

Fiberglass Supply Depot’s 4 lb density expanding pour foam is a high-performance, two-part polyurethane closed-cell foam kit that delivers 2 cubic feet of durable, buoyant, and insulating material. Designed for boat flotation, soundproofing, void filling, and versatile crafting, it cures quickly and bonds seamlessly with common resins, making it a must-have for professionals demanding precision and reliability.

Specifications

ASIN	B08T2195F8
Best Sellers Rank	#26,214 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #57 in Urethane Adhesives
Brand Name	Fiberglass Supply Depot
Coverage	2 cubic feet
Customer Reviews	4.5 4.5 out of 5 stars (259)
Manufacturer	Fiberglass Supply Depot Inc.
Manufacturer Part Number	FBAPOLY4LBGK
Material Type	Foam,Resin
Recommended Uses For Product	Flotation, Soundproofing, Insulation, Filling Voids, Sculpting, Casting
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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$221.91

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