Low Density Flotation and Insulation Foam (2# per cubic foot):		Price:
AeroMarine 2# Density Foam  (Pictured above) 1/2 Gallon kit; includes one quart each of Part A and Part B.  Yields two cubic feet (24"x12"x12").		$28
AeroMarine 2# Density Foam 2 Gallon Kit; Consists of 1 gallon of Part A and 1 gallon of Part B. Yields 8 cubic feet (96" x 12" x 1")(96 board feet).		$72
AeroMarine 2# Density Foam 10 Gallon Kit; Consists of 5 gallons of Part A and 5 gallons of Part B.  Yields 40 cubic feet (480 board feet).  Net weight of contents is about 84 pounds total.		$260
AeroMarine 2# Density Foam 110 Gallon Kit; Consists of 55 gallons of Part A and 55 gallons of Part B. Yields over 500 cubic feet.		$2400 Call to place order
Double Density Foam (4# per cubic foot): This double density foam is much tougher and more structural than the standard foam. Since it is double the density of the standard foam it only yields half as much- yet it provides 58 pounds of flotation per cubic foot. It rises about 12 times its liquid volume.
AeroMarine 4# Density Foam  1/2 Gallon kit; includes one quart each of Part A and Part B.  Yields one cubic foot.		$35
AeroMarine 4# Density Foam  2 Gallon kit; includes one gallon each of Part A and Part B.  Yields 4 cubic feet.		$86
AeroMarine 4# Density Foam  Ten Gallon kit; includes 5 gallons each of Part A and Part B.  Yields 20 cubic feet.		$290
Quadruple Density Foam (8# per cubic foot):		Price:
This foam is very hard and extremely strong. It is frequently used to make simulated wood in the furniture industry. The yield is 1/4 that of the standard foam.
AeroMarine 8# Density Foam  1/2 Gallon kit; includes one quart each of Part A and Part B.  Yields 1/2 cubic foot.		$35
AeroMarine 8# Density Foam  2 Gallon kit; includes one gallon each of Part A and Part B.  Yields 2 cubic feet.		$86
AeroMarine 8# Density Foam  10 Gallon kit; includes 5 gallons each of Part A and Part B.  Yields 10 cubic feet.		$290
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Pour Foam FAQ's

Q. I'm making a pontoon boat from empty 55 gallon drums.  How much foam do I need?
A.  Each 55 gallon drum requires about 8 cubic feet of 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.

Q. Is this foam compatible with styrofoam?

A.  Yes- it will not "eat" or dissolve styrofoam.  If you have a large cavity to fill, it can be worthwhile to 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.  Great question!  Get your calculator ready, you will need it.  A cubic foot of foam 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 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 foam?

A.  You probably should.  Urethane foam 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, but 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 should be painted if exposed to sunlight.

Q.  Is the urethane 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.