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-part polyurethane for strong, closed-cell foam

⏱️5 min full expansion time

🛥️4 lb density for superior flotation

859.12 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 fortifies!

RESIN READY - Cured foam laminates seamlessly with polyester, epoxy, or vinyl ester without damage.
SPEEDY SETUP - Expands fully in just 5 minutes to keep your projects moving fast.
VERSATILE MASTERY - Perfect for soundproofing, insulation, sculpting, and filling voids—one kit, endless possibilities.
FLOAT ABOVE THE REST - 4 lb density foam delivers unmatched buoyancy for boats and docks.
PRECISION PERFORMANCE - Exact 1:1 mixing ratio ensures consistent, reliable results every time.

Fiberglass Supply Depot’s 4 lb density expanding pour foam is a 2-part polyurethane closed-cell liquid foam kit that produces 2 cubic feet of durable, buoyant material. Ideal for boat and dock flotation, soundproofing, insulation, and filling voids, it cures quickly in about 5 minutes and can be laminated with various resins without melting, making it a versatile solution for professional-grade projects.

Specifications

ASIN	B08T2195F8
Best Sellers Rank	#44,739 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #86 in Urethane Adhesives
Brand Name	Fiberglass Supply Depot
Coverage	2 cubic feet
Customer Reviews	4.5 4.5 out of 5 stars (261)
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, Sculpting, Casting
UPC	819794022934
Unit Count	192 Fluid Ounces

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