6 Lb. Density Expanding Pour Foam, 2 Part Polyurethane Closed Cell Liquid Foam for Boats, Dock Flotation, Carving, Soundproofing, Filling Voids, and Insulation (1 Gallon Kit)
$75.99
Price: $75.99
(as of Sep 19, 2025 07:47:15 UTC – Details)
Product description
Package Dimensions : 10.39 x 9.41 x 6.69 inches; 6 Pounds
Item model number : FBACPOLY6LBGK
Date First Available : August 22, 2022
Manufacturer : Fiberglass Supply Depot Inc.
ASIN : B0BBH4XQ9P
Best Sellers Rank: #15,058 in Industrial & Scientific (See Top 100 in Industrial & Scientific) #31 in Urethane Adhesives
Customer Reviews: 4.4 4.4 out of 5 stars 120 ratings var dpAcrHasRegisteredArcLinkClickAction; P.when(‘A’, ‘ready’).execute(function(A) { if (dpAcrHasRegisteredArcLinkClickAction !== true) { dpAcrHasRegisteredArcLinkClickAction = true; A.declarative( ‘acrLink-click-metrics’, ‘click’, { “allowLinkDefault”: true }, function (event) { if (window.ue) { ue.count(“acrLinkClickCount”, (ue.count(“acrLinkClickCount”) || 0) + 1); } } ); } }); P.when(‘A’, ‘cf’).execute(function(A) { A.declarative(‘acrStarsLink-click-metrics’, ‘click’, { “allowLinkDefault” : true }, function(event){ if(window.ue) { ue.count(“acrStarsLinkWithPopoverClickCount”, (ue.count(“acrStarsLinkWithPopoverClickCount”) || 0) + 1); } }); });
Flotation Foam is a polyurethane 2-part foam that, when mixed in equal parts and poured in place this foam will soundproof, insulate, or provide extra buoyancy.
6LB. Density polyurethane flotation Foam 1 Gallon Kit; Consists of 1/2 gallon of Part A and 1/2 gallon of Part B and produces 1.5 cubic feet.
Once fully cured this foam can be laminated over with any type of polyester, epoxy or vinyl ester resin without melting.
The 6LB density also works well in floating decoy or taxidermy applications as well as many other sculpting, casting, carving and other filling applications
All expansion rates and times given are temperature critical. Temperatures below 75° F will lower the expansion rate therefore requiring more foam. Ideal working temperature is 75° to 80° F or above. Accurate measuring of these products is extremely critical. Working time before foaming: approx. 45 seconds Time before full expansion: approx. 5 minutes
Customers say
Customers find the expanding foam easy to work with and appreciate its functionality, with one mentioning its effectiveness for reworking boat hulls. The product receives positive feedback for its quality, with one customer noting its suitability for structural applications. The expansion rate and volume receive mixed reviews, with some customers reporting good levels of expansion while others experience issues. The heat level during expansion also draws mixed reactions.
11 reviews for 6 Lb. Density Expanding Pour Foam, 2 Part Polyurethane Closed Cell Liquid Foam for Boats, Dock Flotation, Carving, Soundproofing, Filling Voids, and Insulation (1 Gallon Kit)
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$75.99
Miguel David Olivar –
Good expanding foam
I have bought this product a couple of times and never fails
BILL T JENKINS –
Very easy to use, good level of expansion and a decent material consistency when cured
I used this product to pour through a small hole into an area that an animal was attempting to dig under my deck. It expands pretty rapidly and you need to get it poured as fast as you can after mixing it. You have maybe a 60 second working time before it takes off. It expands very rapidly and voluminously. It filled the area with decently hard cured material. Just don’t put it someplace fragile and confined, it will very happily push out thin wood on its way to full expansion. The end material seems acceptably durable. It builds a thin skin on itself and it’s not easy to rip apart or dislodge. The resultant material also sticks aggressively to anything, so make sure you are ok with that. Also, don’t get the pre-cured material on your hands; it sticks extremely well to human skin and it will be a pain to get off. Overall a great product for filling spaces!
Okins –
Works great!
Works as it should – Very happy with purchase
M Pain –
Hard as a rock but floats
When mixing we found it better to dump light colored into darker one at equal amounts. when combined and mixing it will turn to a milky color then to a dark color and you will feel heat in your mixing devise. Then it will turn light brown and start to bubble and then you need to dump it where you want it ( maybe 10 – 15 seconds )
Robert McPeters –
Great for casting from molds
This is our go to foam for casting figures from our molds. It is a little expensive, but the 6lb retains awesome detail.
Thierry T –
Leads to catastrophic failure
Yes it works to create a good amount of foam. And the foam looks strong at first…But if something brakes the surface (I was able to break it pushing hard with one finger), then the foam under the surface is extremely brittle. It’s strength is then compromised. In other words, your application could fail in a spectacular way once the surface is breached.Maybe one way to use that is to make sure that the resulting foam is not exposed to anything, like into a fully enclosed box. But that’s not how I wanted to use it.
Leo williams –
fast shipper
great product, arrived on time
Tim S. –
Works
Works like its supposed to
megan –
mixing is important, better mix greater yeild better float.liked the shippers percautions adding insulation for candian weather!!
Martin –
l expension de ce produit est ridiculement petite, innaceptable
Brent Hultman –
The produce did not Cure to the quantity it claimed to do.