would this provide floatation if used in the bow of a kayak?

Yes, that is one of its intended uses. It is a closed cell foam.

Question any way to pump this? I have a void under a concrete walkway and I need to get it back 4 feet The void is 4x4 and 2 to 6 inches deep.

You only have a brown 30 seconds after you mix the product to put it in the location that you are wanting depending on temperature if you have a mixing tip then you could pump it however it needs to be agitated for 20 seconds

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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 (Quart 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 (Quart Kit)

Product ID: 273973810

Details

Brand
Fiberglass
Color
Black Clear
Item Form
Liquid
Material
Foam Resin
Special Feature
Versatility

🧱Closed-cell foam for waterproof insulation

⏱️5 min full cure time

🛥️4 lb density for superior flotation

C$6966

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Sold byAmazon NicaraguaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

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

SPEEDY SETUP - Fully cures in just 5 minutes, so your projects move fast without waiting around.
SEAL SOUNDPROOF - Closed-cell structure ensures waterproof insulation and effective sound dampening.
FLOAT ABOVE THE REST - 4 lb density foam delivers unmatched buoyancy for boats, docks, and decoys.
PRECISION PERFORMANCE - Optimal working temperature of 75-80°F and 45-second working time for flawless application.
VERSATILE CRAFTING POWER - Perfect for sculpting, casting, filling voids, and laminating with polyester or epoxy resins.

Fiberglass Supply Depot’s 4 lb density expanding pour foam is a two-part polyurethane closed-cell liquid foam designed for superior flotation, soundproofing, insulation, and filling voids. It cures fully in 5 minutes, is waterproof, and compatible with polyester, epoxy, and vinyl ester resins, making it ideal for marine, industrial, and creative applications.

Specifications

ASIN	B08T255GS5
Best Sellers Rank	#33,391 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #68 in Urethane Adhesives
Brand	Fiberglass Supply Depot
Brand Name	Fiberglass Supply Depot
Color	Black, Clear, Yellow
Compatible Material	Vinyl
Container Type	Can
Customer Reviews	4.4 out of 5 stars 160 Reviews
Full Cure Time	5 minutes
Item Form	Liquid
Item Package Quantity	1
Manufacturer	Fiberglass Supply Depot Inc.
Material	Foam , Resin
Material Type	Foam,Resin
Number of Pieces	2
Other Special Features of the Product	Versatility
Part Number	poly4lbqk
Special Feature	Versatility
UPC	819794022897
Unit Count	64 Ounce
Viscosity Level	Medium to High
Volume	2 liters
Water Resistance Level	Waterproof

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C$6966

Duties & taxes included

In stock

Sold byAmazon NicaraguaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Nicaragua.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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