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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 84 Reviews

August 23, 2022

Product performed exactly as advertised!
By Dennis the Menace from Austin, TX

Verified Purchase

Minor comment: The cans are labeled as net contents 1 Qt. Not quite sure what "net contents" means but contents are definitely less than one liquid quart. However, as long as contents are mixed as directed (1 to 1), the end results are perfect. :-)

Bottom Line Yes, I would recommend to a friend

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July 28, 2022

Very solid structural foam
By EJ from Nashville, TN

Verified Purchase

Using it to rebuild flooring in 1970 Correct Craft Freeport. Correct Craft made liberal use of foam to support the floor in addition to wood. Kept a lot of the old foam, but had to discard some of it that was too saturated with water. When cured it is extremely solid, yet easy to cut and shape to a fair surface.

Bottom Line Yes, I would recommend to a friend

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July 5, 2022

Freestanding Tub
By Will from North Carolina

Verified Purchase

Bought to fill the walls between my freestanding tub. Was a bit nervous about the pressure busting the walls or heating up too much, but it worked perfectly. Highly recommend everyone doing this for their tub, gets rid of the hollow sound and holds warmth.

Bottom Line Yes, I would recommend to a friend

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June 16, 2022

I would recommend it.
By Fishing again from Michigan

Verified Purchase

I used it to make blocks for flotation using plastic containers for my boat. I used cardboard cup holders to prevent spills and red cups to pour equal amounts of material. I also labeled each cup A or B. Outside temperature 75/80 degrees. I was able to coax each block out after a half hour. I used blocks instead of poring directly into my aluminum boat with marine wood as my floor, because it took long time to take out saturated foam. Using a crow bar to pry out material was very helpful. Additionally, I used noodle rod foam to secure blocks. These tips helped me as I was able to access bad foam. Marine repairman told me fiberglass boats also can get foam saturated with water. My boat is 12 years old and stays in water for about 4 months. I use bilge pump to help rid water.

Bottom Line Yes, I would recommend to a friend

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June 4, 2022

Does the job
By @the_traveling_together_journal from California

Verified Purchase

Used to build composite panels for a diy truck camper. Lots of variables affect expansion, so it is not super consistent density, but it works as advertised

Bottom Line Yes, I would recommend to a friend

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October 20, 2021

Easy to use!
By Keith from Vermont

Verified Purchase

I have used this product to make a few portable coolers now, and its great! Easy to mix, cures fast.

Bottom Line Yes, I would recommend to a friend

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September 26, 2021

Foam
By ? from ?

Verified Purchase

Works good

Bottom Line Yes, I would recommend to a friend

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September 7, 2021

Great product!
By Michael from Arizona

Verified Purchase

Once you get the hang of it this is a quick and easy product to use!

Bottom Line Yes, I would recommend to a friend

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September 7, 2021

Aluminum Canoe Flotation Repair
By Dan from Denver

Verified Purchase

Flotation Foam worked good to replace the original flotation in the bow and stern of a 1970 aluminum canoe. The 80 lb canoe is now unsinkable.

Repaired
Tank Test
Bow Flotation Foam
Bottom Line Yes, I would recommend to a friend

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August 26, 2021

I would use this product again for another project.
By Jose from Lockport,Illinois

Verified Purchase

Easy to use. Just take the time to measure the cavity you are filling and the right amount of the mix to minimize waste. Also, you must wear a respirator when using this product.

Bottom Line Yes, I would recommend to a friend

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