AeroMarine Polyurethane Pour Foam
for Insulation and Flotation

"Boat Foam"
"Closed Cell Foam"

U.S. Coast Guard Approvable Liquid Foam

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AeroMarine Products, Inc.
8659 Production Avnue
San Diego, CA 92121


This expanding boat foam is closed cell, rigid foam.

Uses of this liquid two-part urethane foam include:

Polyurethane flotation for boats, barges, docks, canoes, kayaks, pontoons, etc.

Polyurethane insulation for buildings, pools, spas.

**This is a pour foam only. It is NOT a sprayable foam!

Always wear a respirator or self-contained breathing apparatus when working with pour foam.

urethane foam


Low Density Flotation and Insulation Foam (2# per cubic foot)

 

Price

AeroMarine 2# Density polyurethane flotation Foam
1/2 Gallon kit; includes one quart each of Part A and Part B. Yields two cubic feet. 

2 part foam $44.00

Ships Immediately


AeroMarine 2# Density polyurethane flotation Foam 2 Gallon Kit; Consists of 1 gallon of Part A and 1 gallon of Part B.
Yields 8 cubic feet.

2 part foam

$95.00

Ships Immediately


AeroMarine 2# Density polyurethane flotation Foam 10 Gallon Kit; Consists of 5 gallons of Part A and 5 gallons of Part B. Yields 40 cubic feet. Net weight of contents is about 84 pounds total.

Note: Our regular shopping cart uses UPS Ground. which gets expensive when ordering multiple kits.  If you need multiple kits then we have a form that can help us all get lower freight rates by using a trucking service- click here.

2 part pour foam

$359.00

Ships Immediately


Need several kits?

AeroMarine 2# Density polyurethane flotation Foam 110 Gallon Kit; Consists of 55 gallons of Part A and 55 gallons of Part B.
Yields over 500 cubic feet.

two part urethane foam

$3900.00

Call to place order



Double Density Foam (4# per cubic foot)

 

Price

AeroMarine 4# Density polyurethane foam
1/2 Gallon kit; includes one quart each of Part A and Part B. Yields one cubic foot.

2 part foam

$47.00

Ships Immediately


AeroMarine 4# Density polyurethane foam
2 Gallon kit; includes one gallon each of Part A and Part B. Yields 4 cubic feet.

liquid foam

$97.00

Ships Immediately


AeroMarine 4# Density polyurethane foam
Ten Gallon kit; includes 5 gallons each of Part A and Part B. Yields 20 cubic feet.

liquid foam

$372.00

Ships Immediately



Quadruple Density Foam (8# per cubic foot)

 

Price

AeroMarine 8# Density polyurethane foam
1/2 Gallon kit; includes one quart each of Part A and Part B. Yields 1/2 cubic foot.  This is our highest density, strongest pour foam.  It is excellent for repairing boat decks.

NOT FOR FLOTATION!

high density pour foam

$49.00

Ships Immediately


AeroMarine 8# Density polyurethane foam
2 Gallon kit; includes one gallon each of Part A and Part B. Yields 2 cubic feet.

NOT FOR FLOTATION!

expandable foam flotation

$109.00

Ships Immediately


AeroMarine 8# Density polyurethane foam
10 Gallon kit; includes 5 gallons each of Part A and Part B. Yields 10 cubic feet.

NOT FOR FLOTATION!

flotation foam 2 part

$380.00

Ships Immediately


  Pour Foam FAQ's                                                                          

Q. I'm making a pontoon boat from empty 55 gallon drums. How much floatation foam do I need?

A. Each 55 gallon drum requires about 8 cubic feet of urethane foam. Since each cubic foot weighs two pounds, you will need 16 pounds of foam per empty drum. Therefore, it will require about one gallon kit (makes two gallons) per drum.

Q. Can I brush or spray the liquid foam onto a vertical wall to provide a uniform thickness of insulation foam?

A. No, the liquid foam will just run to the floor, then rise. You will have a big blob of foam on the floor. It is NOT a sprayable foam.

Q. Is this flotation foam compatible with styrofoam?

A. Yes. It will not "eat" or dissolve styrofoam. If you have a large cavity to fill, you can put some chunks of styrofoam in the cavity to save foam.

Q. How do I know how much foam I need to float my boat?

A. Get your calculator ready, you will need it. A cubic foot of polyurethane will float about 60 pounds of "dead weight". The wood parts of your boat will probably float, so you don't need flotation foam to offset that weight. The fiberglass parts of your boat will barely sink, so you really don't need much foam to offset the fiberglass- maybe one cubic foot of foam per two hundred pounds (or more) of fiberglass hull. The metal parts of your boat are what you really need to account for. A small (4-6hp) outboard may weigh 45-55 pounds. A 50hp outboard will weigh about 200 pounds.

So a 16 foot fiberglass skiff with a 50 horse outboard will need about six cubic feet of urethane foam to keep it afloat. A 12 foot plastic kayak will only need one cubic foot. A 30 foot fiberglass sailing sloop with a diesel engine and lead keel would need about 150 cubic feet of foam. Actually, very few 30 foot keelboats have positive foam flotation, but it's not out of the question- especially when you consider all of the air pockets that would exist, as well as all of the wood interior components that provide some positive flotation.


Q. Do I need to paint or fiberglass over the floatation foam?

A. You probably should. Polyurethane will absorb a small amount of water, because some of the the cells are open (95%+ are closed, though). Painting or glassing will seal the foam and prevent any water absorption. However, it really shouldn't be necessary unless the foam is constantly immersed in water, such as in a boat with bilges that are always wet. The foam is not UV resistant, so it must be painted if exposed to sunlight.

Q. Is the polyurethane foam resistant to fuel, oil, and solvents?
A. Mostly yes. It is resistant to splashes of gasoline and diesel fuel, although it will absorb a small amount because no pourable foam can be guaranteed to be 100% closed cell. A strong solvent such as acetone or toluene would eventually break the foam down, but it would take a long time.

Q. What is the maximum exothermic temperature that cured polyurethane foam can reach?

A. 250 degrees F.

Q. What is the maximum surface temperature that cured polyurethane foam can withstand before it begins degrading?

A. 200 degrees F.  The foam does not ignite. Under high heat and direct flame, it will char like wood. The foam will break down with continued exposure to excessive heat/flame.  The damaged area can be repaired by removing the damaged portion and pouring new foam into the void.

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