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: 423761958

Details

Brand
Fiberglass
Manufacturer
Fiberglass
Material
Polyurethane
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

1360.34 DT

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Sold byAmazon TunisiaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🛠️ Elevate your build with foam that floats, fills, and finishes like a boss!

SPEEDY SETUP - Expands fully in just 5 minutes, so your project moves fast without compromise.
FLOAT LIKE A PRO - 4 lb density closed-cell foam ensures unmatched buoyancy for boats and docks.
VERSATILE MASTERY - Perfect for soundproofing, insulation, filling voids, and even sculpting or casting.
PRECISION COVERAGE - One gallon kit yields 2 cubic feet of foam—measure accurately for flawless results.
RESIN READY FINISH - Cured foam laminates seamlessly with polyester, epoxy, or vinyl ester resins—no melting worries.

Fiberglass Supply Depot’s 4 lb density expanding pour foam is a two-part polyurethane closed-cell liquid foam kit designed for professional-grade flotation, soundproofing, insulation, and filling applications. Each 1-gallon kit produces 2 cubic feet of foam that fully expands in 5 minutes at optimal temperatures, cures to a resin-compatible finish, and offers versatile use from marine to sculpting projects.

Specifications

ASIN	B08T2195F8
Best Sellers Rank	509,070 in DIY & Tools ( See Top 100 in DIY & Tools ) 24,141 in Adhesives & Sealers
Brand	Fiberglass Supply Depot
Coverage	2 cubic feet (volume coverage)
Customer Reviews	4.4 4.4 out of 5 stars (256)
Manufacturer	Fiberglass Supply Depot Inc.
Material	Polyurethane Foam
Number of Items	2
Number of Packs	1
Part Number	FBAPOLY4LBGK
Recommended Uses For Product	Flotation, Soundproofing, Insulation, Filling Voids, Sculpting, Casting
UPC	819794022934
Unit Count	5678.1177 millilitre

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