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TotalBoat 6 Lb Density Expanding Foam Kit, 2 Part Closed Cell Polyurethane Liquid Foam for Boat Flotation, Casting, Carving, Sculpture, Reinforcement and Void Filling (2 Gallon Kit)

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Availability: In Stock.
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Arrives Thursday, Dec 25
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Size Name: 2 Gallon Kit


Features

  • TWO-PART, MARINE GRADE EXPANDING FOAM cures very hard and rigid, with high compressive strength ideal for a number of marine and residential applications, including structural reinforcement, architectural castings, art projects and flotation
  • 6 POUNDS PER CUBIC FOOT HIGH-DENSITY FORMULA is perfect for casting, carving, sculpture, plug making, sign making, flotation for boats and buoys, floating decoys, part fabrication, replicating wooden parts, rigidifying, structural support and more
  • FAST-SETTING, CURES TO A 94% CLOSED CELL FOAM, where each cell traps air and prevents liquids such as water, gas, and oil from penetrating; once fully cured, foam is compatible with epoxy, polyester or vinyl ester resins, and can be painted
  • IDEAL WORKING TEMPERATURE IS 75-85F. Proper temperature, mixing, timing and venting are critical for proper foam expansion; below 75F expansion decreases; the foam expands rapidly after mixing, so prep the surface in advance and be ready to pour
  • AVAILABLE IN A 2 QUART KIT AND A 2 GALLON KIT. Yield: 2-Quart Kit 3/4 cubic ft, 2-Gallon Kit 3 cubic ft; Flotation Range for 6lb foam: 23 lbs per mixed 2 quart kit and 92 lbs per mixed 2 gallon kit

Description

TotalBoat 6 Lb. density 2-Part Polyurethane Flotation Foam is a versatile, fast-setting expanding foam that cures rigid and strong, making it ideal for a number of structural and artistic applications, It's more than just a flotation foam for boats - use it for filling cavities to support heavy loads, casting, sculpting, making plugs for fiberglass molds, creating floating decoys, fabricating stage and stunt props and much more. This versatile foam can be finished and painted, once cured, and is very easy to cut or carve into shape. Cured marine foam is also compatible with epoxy, polyester, and vinyl ester coatings.TotalBoat two part foam has a simple 1:1 mix ratio that makes it very easy to use, and it cures quickly at room temperature. Always have good ventilation, and wear proper gloves, eye, and clothing protection when you mix or pour foam. Warm conditions of 75-85°F are extremely critical for it to expand properly, as are accurate measuring and thorough mixing. Boat foam expands tremendously by volume, so proper venting is critical in the area where the foam is to be applied. Just mix one part resin and one part activator together, stir vigorously for about 25 seconds, pour immediately into the prepared cavity or mold, and leave undisturbed until cured. The foam hardens, with minimal shrinkage, and can be cut or carved to shape easily. For best results filling larger areas, pour in multiple layers to allow a proper cure and maximum strength bonding between layers. If consecutive pours are not possible, the polyurethane foam will still cure mechanically to itself.Compare to US Composites Expanding Urethane Foam, Fibre Glast Mix and Pour Foam, AeroMarine Pour Foam, and Iso-Pak IsoFoam. TotalBoat 2 Part Marine Foam sets up quickly, and has high compressive strength. All TotalBoat products are developed for boaters, by boaters. We know what works and what doesn't. 100% made in the USA.

Brand: TotalBoat


Specific Uses For Product: Art, Casting, Carpentry, Furniture, Wood, Wall Repair, Marine


Material: Polyurethane Resin


Item Form: Foam,Liquid


Special Feature: High-Density, Versatile Application, Waterproof


Brand: ‎TotalBoat


Specific Uses For Product: ‎Art, Casting, Carpentry, Furniture, Wood, Wall Repair, Marine


Material: ‎Polyurethane Resin


Item Form: ‎Foam,Liquid


Special Feature: ‎High-Density, Versatile Application, Waterproof


Color: ‎Clear


Item Package Quantity: ‎1


Package Information: ‎Pail


Item Volume: ‎2 Gallons


Viscosity: ‎Low


Full Cure Time: ‎5 Minutes


Water Resistance Level: ‎Waterproof


Tensile Strength: ‎500 Pounds Per Square Inch


Unit Count: ‎256.0 Fluid Ounces


Viscosity Level: ‎Low


UPC: ‎811932022127


Number of Pieces: ‎1


Global Trade Identification Number: ‎27


Manufacturer: ‎TotalBoat


Part Number: ‎TB-FOAM6


Item Weight: ‎20 pounds


Product Dimensions: ‎8.5 x 6.5 x 10 inches


Item model number: ‎TB-FOAM6


Is Discontinued By Manufacturer: ‎No


Size: ‎2 Gallon Kit


Special Features: ‎High-Density, Versatile Application, Waterproof


Included Components: ‎resin and hardener


Batteries Included?: ‎No


Batteries Required?: ‎No


Date First Available: January 7, 2016


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Thursday, Dec 25

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews


  • Great product
Size Name: 2 Gallon Kit
Did not get my order kept looking for it for over a week and never came in got a hold of Amazon and they resent me the order and it was here in 30 hours and the foam worked great and set up hard in 30 minutes will definitely use this again trying to think of more projects for it
Reviewed in the United States on November 20, 2025 by Heath Burns

  • Bueno
Size Name: 2 Gallon Kit
Es buena, cubre bien
Reviewed in the United States on November 19, 2025 by Yadiel Muñoz Rodriguez

  • Very strong once cured
Size Name: 2 Quart Kit
I used this product for repairing a classic 13’ whaler. It cures very hard and strong. I would estimate it expands 6 - 8 times. Easy to pour. I was very happy with the results.
Reviewed in the United States on November 2, 2022 by MLT

  • Thins thing works!!
Size Name: 2 Gallon Kit
Amazing product, I’ve been waiting 6 months to try this product. Yesterday, the weather finally allowed me to get some work done. LOVE IT! Expands evenly and fills like crazy My boat will float!!
Reviewed in the United States on March 6, 2023 by S. Crawford

  • Foams up surprisingly quickly
Size Name: 2 Quart Kit
This was the first time that I had used a 2-part foaming agent. Mixed up in a 1-to-1 ratio, it started foaming about 5 seconds after mixing in 80+ degree weather. (I glanced away for under a second, then glanced back and it had quickly started foaming in the mixing cup.) It's a good idea to mix small quantities at a time. I also learned the hard way that the foam in liquid form will get through any open cracks in the work area. This is definitely different from the spray on foam which I am used to. (I have been cleaning areas where I didn't intend the foam to go.) Also, it seems to bond to just about anything as it dries. The texture of this foam seems to have many more air bubbles than spray-on foam. This has been a learning experience for me while working on my boat. Question: Would I use this again? I am not sure. I am inclined not to. This is simply because of my lack of knowledge in using this product. ... show more
Reviewed in the United States on February 9, 2023 by Lloyd

  • Doesn't expand as much as you would expect.
Size Name: 2 Gallon Kit
I'm putting a new floor in a 1986 glastron ski boat. The area in the picture is 6 feet long by 2 1/2 feet wide and 4 inches deep. It took the entire 2 gallons (1 gallon mixed) of 6 lb foam to cover the floor. When dry it's solid as a rock. You can walk on it with No compression or crushing. Only problem for me was I expected a greater volume from 1 gallon of mix. I expect that if it was a lower Lb like 3 or 4 it would expand more. Hope this helps you. Frank ... show more
Reviewed in the United States on August 24, 2024 by Smitty Smitty

  • To get yield MUST be whipped until the color darkens (dramatically) and viscosity changes.
Size Name: 2 Gallon Kit
The TotalBoat instructions say mix for 15 to 25 secs (depending on temperature), but how "intensely" you mix makes a bigly difference. I needed about a dozen 20-24 oz batches for my project. My yield was low until I got lucky and mixed it (always using a drill mixer) a bit longer / faster - when the two parts transitioned from a uniform creamy tan color to a significantly darker coffee color. The color change was kind of dramatic / instant and it seemed to be accompanied by an equally dramatic change in viscosity. Prior to this little discovery, I would mix it (what I thought was aggressively) for the requisite time, achieve a consistent (creamy tan) color and pour - always to be disappointed with the yield. I was mixing 24 oz in a half gallon container, and there were times, I was concerned it would sling over the top of the pail before "the change". I recommend that you do a greater number of smaller batches instead of one big pour if you can manage it. The expansion "seems" to be more reliable that way, and all you your eggs are not in one basket. I got the 2 gallon - 6lb / CuFt kit, and found that the finished product was robust / tough / solid and probably expanded to the advertised ~3 CuFt volume after I got the mixing thing sorted. The 6lb stuff is definitely harder and denser than any polyurethane foam I've used before. The cured foam can be tough to cut with a serrated knife. Obviously, you need the correct temperature (75 to 90F, yep the tech guy at TB said 80F is great, but up to 90F is ok), and the correct mixture (1:1 by volume, 1:1.09 by weight - because the activator is heavier). Here's why they got 3 stars: 1. Come on Man! TotalBoat knows people are disappointed in yield, and I did everything by the book, only to wind up with - you got it - low yield! They should add a tiny note in their description to make sure purchasers know to whip it good - till it turns coffee colored and the viscosity changes. Heck, they could even make a video. 2. First go around, TotalBoat mailed me only the Part B (see pic). Come on Man! 3. Second round, TotalBoat mailed me a Part A that was leaking! There's an aluminum seal, but the cap was not tight (Drrr!). It's like they have a good product, but then just don't try. I tried to include a link to the technical data sheet for the 6lb foam, but AMZN would not allow that. Godspeed. ... show more
Reviewed in the United States on September 24, 2020 by Mark H. Mark H.

  • best
Size Name: 2 Gallon Kit
best stuff if you know how to use it
Reviewed in the United States on June 11, 2025 by FISH JUNKIE

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