can this be cut with hot wire ?

Yes, but it is high density. It will not cut as easily as Styrofoam

Does this require moisture to cure?

This will not cure with moisture present.

whats the difference between 2#,4# & 6#? is the polyurethane hydrophobic or hydrophilic?

To clarify, each density of foam has a different expansion rate, so they are all used for different applications. Please refer to the reference chart of each listing for details regarding expansion. This material is hydrophobic. -FSD

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Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

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Fiberglass Supply Depot 2 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 2 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: 265890390

Details

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

📏5 cubic feet coverage per kit

⏱️5 min full expansion time

🛥️2 lb density for superior buoyancy

€ 240.38

Duties & taxes included

In stock

Sold byAmazon SpainDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🛠️ Float, Fill, and Fortify with Foam That Means Business!

LIGHTWEIGHT YET DURABLE - 2 lb density closed-cell foam provides buoyancy without adding bulk or weight.
RESIN COMPATIBLE FINISH - Can be laminated with polyester, epoxy, or vinyl ester resins without melting—perfect for professional-grade repairs.
RAPID 5 MINUTE EXPANSION - Get quick results with a fast curing time that fits your project schedule.
PRECISION MIXED 2 PART FORMULA - Ensures perfect chemical balance for consistent expansion and performance every time.
VERSATILE APPLICATION POWERHOUSE - Ideal for boat flotation, soundproofing, insulation, and filling hard-to-reach voids.

Fiberglass Supply Depot’s 2 lb density expanding pour foam is a 2-part polyurethane closed-cell liquid foam kit delivering 5 cubic feet of high-performance insulation, flotation, and soundproofing. Designed for precision mixing and rapid 5-minute expansion, it’s perfect for boat docks, void filling, and professional-grade repairs, compatible with multiple resin types for seamless finishing.

Specifications

ASIN	B08RP8DNDB
Best Sellers Rank	#20,978 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #52 in Urethane Adhesives
Brand	Fiberglass Supply Depot
Brand Name	Fiberglass Supply Depot
Coverage	5 cubic feet
Customer Reviews	4.6 out of 5 stars 296 Reviews
Manufacturer	Fiberglass Supply Depot Inc.
Manufacturer Part Number	Poly2lbgk
Material	Foam
Material Type	Foam
Model Number	Poly2lbgk
Number of Items	2
Number of Packs	1
Recommended Uses For Product	Soundproofing, Insulation, Flotation, Void Filling
UPC	819794022859
Unit Count	128 Fluid Ounces

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