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Product Details

Mix TotalBoat 2-Part Polyurethane Flotation Foam in equal parts and pour in place to soundproof, insulate, provide buoyancy, and even create art. Pourable foam has 94% closed-cell structure to resist absorbing water, and is unaffected by gas or oil. Available in 2 lb & 6 lb density.

2 pound density foam is great for filling voids in non-structural applications. Can be poured beneath decks and inside cavities to provide buoyancy, and has a flotation range of 75 lbs/qt and 300 lbs/gal.

6 pound density foam has higher compressive strength, ideal for filling cavities to support heavy loads. Its smaller cell structure makes it a popular choice for uses ranging from buoys to sculptures. Its flotation range is 23 lbs/qt and 92 lbs/gal.

Both have been tested in accordance with U.S. Coast Guard Regulation # 33 CFR 183.114.

Available in 2-Quart and 2-Gallon Kits.

Tech Specs
Technical Specifications 2 LB. Density Foam 6 LB. Density Foam
Mix Ratio by WEIGHT 100 Resin:109 Activator 100 Resin:100 Activator
Mix Ratio by VOLUME 1 part Resin : 1 part Activator 1 part Resin : 1 part Activator
Cream Time 45 seconds 65 seconds
Gel Time 235 seconds 150 seconds
Tack-Free Time 380 seconds 215 seconds
Rise Time 400 seconds 200-250 seconds
Flotation (Admixed) 75 lbs/qt; 300 lbs/gal 23 lbs/qt; 92 lbs/gal
Application Temperature 60-85°F (75-85°F is optimal for yield and cure/working times) 60-85°F (75-85°F is optimal for yield and cure/working times)
Yield: 2-Quart Kit 2 cubic ft. 3/4 cubic ft.
Yield: 2-Gallon Kit 8 cubic ft. 3.0 cubic ft.
Weight 9.4 lbs/gal (resin), 10.2 lbs/gal (activator) 9.0 lbs/gal (resin), 10.2 lbs/gal (activator)
Storage 33-95°F - DO NOT ALLOW TO FREEZE 33-95°F - DO NOT ALLOW TO FREEZE
Info & Guides
2-Part Polyurethane Flotation Foam Specifications:
  • The lightweight, 2 lb. density foam is commonly used for filling voids, filling under decks, and practically any other flotation or insulation application.
  • 6 lb. density foam is used for architectural castings, support applications, and has virtually an unlimited number of potential uses.
  • The densities shown refer to the weight per cubic foot of expanded foam (12 in. x 12 in. x 12 in.)
  • 2 lb. density foam expansion: One 2-Quart Kit expands to approximately 2 cubic ft.; one 2-Gallon Kit expands to approximately 8 cubic ft.
  • 6 lb. density foam expansion: One 2-Quart Kit expands to approximately 3/4 cubic ft.; one 2-Gallon Kit expands to approximately 3 cubic ft.
  • All expansion rates and times given are temperature critical. Temperatures below 75 degrees F will lower the expansion rate, which will require more foam. The ideal working temperature is 75 to 80 degrees F, or higher.
  • Accurate measuring of these products is extremely critical.
  • Once fully cured, either foam can be laminated over with any type of polyester, epoxy, or vinyl ester resin without melting. Polyurethane foam is compatible with both epoxy and polyester resin systems.
  • This product can be poured in multiple layers, with excellent bonding between layers.
  • Working time before foaming: Approximately 45 seconds (2 lb. density) to 65 seconds (6 lb. density).
  • Time before full expansion: Approximately 5 minutes

WARNING: The 6 LB. Density Flotation Foam Activator can expose you to chemicals including ethylene glycol, which is known to the State of California to cause birth defects or other reproductive harm. For more information, go to www.P65Warnings.ca.gov

Reviews for TotalBoat 2 Part Polyurethane Flotation Foam

10 of 71 Reviews

July 20, 2021

The more I use it, the morr I like it!
By Bob from Racine, WI.

Verified Purchase

After the first couple of batches I got it down to where I could really control the flow and rise rate.

Bottom Line Yes, I would recommend to a friend

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June 25, 2021

I would buy this product again
By Peachy from Alabama

Verified Purchase

This stuff is great for filling under floor voids in your boat! There is a learning curve, start with small pours and make sure you have enough expansion holes or it will lift your floor😊

Bottom Line Yes, I would recommend to a friend

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June 18, 2021

My Bass Tracker Rebuild
By Harvey Da Wabbit from Jacksonville, AR.

Verified Purchase

When I bought this used boat, I planned to gut and overhaul it. Months into this project, I'm very excited about the Total Boat Flotation Foam. The old foam was COMPLETELY, water logged. It is a major factor in my rebuild.

Bottom Line Yes, I would recommend to a friend

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May 27, 2021

Product was like advertised
By Butch from Catt co ny

Verified Purchase

Told came with 2 mixing cups but none, no problem. I built wood forms, the 2nd poor into the same form the formed product was very difficult to remove intact.

Bottom Line Yes, I would recommend to a friend

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May 7, 2021

I would use this product again
By Denny from Rocky Mount, MO

Verified Purchase

I am using this for floatation in my old Starcraft Aluminum Boat. This 1959 boat did sink once since I have owned it. I am replacing the plywood floor and now l will have floatation so the boat can't sink anymore. The only downside is the mess and it doesn't pour even.

Bottom Line Yes, I would recommend to a friend

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April 23, 2021

2 part foam for positive bouyancy
By Sail4beer from The world over

Verified Purchase

I bought the product in late March and have to wait until the temperature is above 75 degrees for the product to expand and cure properly. If the temperature is too low, the material will expand and then collapse, ruining its buoyant properties.

Bottom Line Yes, I would recommend to a friend

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April 15, 2021

Plan on ordering more.
By AJ from FL

Verified Purchase

Product worked well and was easy to use. After gutting boat hull to replace stringer and install new deck used product to replace flotation foarm.

Bottom Line Yes, I would recommend to a friend

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April 12, 2021

Product was hit or miss.
By Sports craft from Nj

Verified Purchase

I had several issues. First one being labeling was incorrect on several bottles. Is also inconsistent performance out of the units that I used. The ones that did work correctly worked great and the team from Jamestown Distributors did a great job with rectifying the mislabeled bottles

Bottom Line Yes, I would recommend to a friend

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April 8, 2021

Very good product
By Josh from Mount sterling ky

Verified Purchase

First time using this product. It was easy to mix. It hardens and expands rapidly. Very good product and fast shipping.

Bottom Line Yes, I would recommend to a friend

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April 7, 2021

Excellent product, excellent support
By Fiberglass Bulkhead Strength from East Lyme, CT

Verified Purchase

I called tech support three times before purchasing the foam to ensure it would work for my project...the level of support and knowledge was impressive. The foam worked as advertised and once fully cured it was extremely ridged/strong.

Bottom Line Yes, I would recommend to a friend

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