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

Product ID: 423761959

Details

Brand
Fiberglass
Manufacturer
Fiberglass
Material
Polyurethane
Number of Packs
1
Recommended uses for product
soundproofing

📏5 cubic feet coverage

🕒5 min full expansion

⚖️2 lbs lightweight density

$322.99

Duties & taxes included

In stock

Sold byAmazon EcuadorDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🚀 Elevate your projects with foam that fills, floats, and fortifies!

PRECISION 2 PART MIX - Exact 1:1 ratio for flawless foam activation every time
VERSATILE APPLICATION - Perfect for flotation, soundproofing, insulation, and void filling
RAPID EXPANSION CURE - Fully expands in 5 minutes to save you time on projects
RESIN COMPATIBLE FINISH - Cures to a surface ready for polyester, epoxy, or vinyl ester laminates
TEMPERATURE OPTIMIZED PERFORMANCE - Ideal working temp 75-80°F ensures max expansion and strength

Fiberglass Supply Depot’s 2-pound 2-part closed cell polyurethane foam delivers 5 cubic feet of lightweight, rapidly expanding foam designed for boat flotation, soundproofing, thermal insulation, and void filling. Its precise 1:1 mix ratio and compatibility with common resins make it a versatile, professional-grade solution optimized for use at 75-80°F.

Specifications

ASIN	B08R6C4HBL
Best Sellers Rank	78,667 in Business, Industry & Science ( See Top 100 in Business, Industry & Science ) 288 in Foam Raw Materials
Brand	Fiberglass Supply Depot
Coverage	2.5 cubic feet
Customer Reviews	4.5 4.5 out of 5 stars (477)
Manufacturer	Fiberglass Supply Depot Inc.
Material	Polyurethane
Model Number	Poly2lb1/2gk
Number of Items	2
Number of Packs	1
Part Number	Poly2lb1/2gk
Recommended Uses For Product	soundproofing, insulation, buoyancy, void filling
UPC	819794022866
Unit Count	2.0 count

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