Expanding Foam (Pour Foam/Two Part Foam)

(30 customer reviews)

Price range: $24.50 through $319.99

Our expanding foam comes in 2 part kits. This kit includes the AB Foam Components. Just mix it and pour in place.
This Pour foam has between a 2 and 16lb lb density and Comes in kits up to 80 pounds ( 9-10 Gallons depending on density ). If you were to mix the entire kit contents you will get coverage according to the chart below.

Our easy to use expanding foam is packaged in a 2 part foam kit and is as simple as mixing the AB Foam urethane Components together and pouring in place.

We offer great prices on our Foam kits.  This Pour foam is a two part  closed cell foam that can be used  for pour in place foam applications or as Boat foam insulation. Our 2 lb Marine Foam is US coast Guard approved for boat repair. And, our 16lb density structural foam is rated for use in  construction and mining.  Our customers use this foam for many applications including boat repair, various marine applications, filling holes/pipes, reinforcement of composite structures and more.

SKU: CREFOM Categories: ,

Description

Important Links

(U.S. Coast Guard Compliant Marine Foam)

* This two-part liquid, expanding rigid urethane foam is a closed cell, pourable foam, which will resist the absorption of water.
* The densities shown refer to the weight per cubic foot of expanded foam (12″ x 12″ x 12″).
* Once fully cured this foam can be laminated over with any type of polyester, epoxy or vinyl ester resin without melting.
* This product can be poured in multiple layers with excellent bonding between layers.
* All expansion rates and times given are temperature critical. Temperatures below 75 degrees F will lower the expansion rate therefore requiring more foam. Ideal working temperature is 75 to 80 degrees 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
* The lightweight foam is commonly used for filling voids, filling under decks and practically any other flotation or insulation application. Higher densities are used for architectural castings, support applications and has virtually an unlimited number of potential uses.

For frequently asked questions about expanding foam check out this resource by clicking here

2 Part Foam Properties

Property 2 lb Foam 4lb Foam 8lb Foam 16lb Foam
Free Rise Density
2.0 lbs / cubic ft.
4.0 lbs / cubic ft.
8.0 lbs / cubic ft.
16.0 lbs cubic ft.
Expansion Rate
25-30x Liquid Volume
~15x Liquid Volume
~8x Liquid Volume
~4x Liquid Volume
Buoyancy
60 LBs per Cubic Ft.
N/A
N/A
N/A
Parallel Compressive Strength
40 psi
90 psi
250 psi
580 psi
Tensile Strength
30 psi
110 psi
225 psi
450 psi
Shear Strength
30 psi
70 psi
130 psi
230 psi
Flexural Strength
50 psi
120 psi
350 psi
750 psi

Pour Foam calculator for rectangular areas

Example: A gap in the floor of a boat needs to be filled for floatation. The area is 4ft x 2ft x 1ft. This would require 2.39 Gallons of 2lb density foam to be mixed. To account for uneven expansion and waste, you should have 3 gallons on hand. 

inches
inches
inches
cubic inches
Gallons
lb
Pounds

Recommended Supplies for Foam

Graduated Mixing Cups – An accurate measurement is extremely important to achieve optimum curing.

Mixing Tools – It’s very important that the foam is mixed thoroughly and quickly. For small amounts a tongue depressor is okay but for larger amounts you should use a power mixer. We sell both of these items.

PPE – When cured, urethane foam is EXTREMELY hard to remove. You should always wear gloves and properly prepare the area with plastic in case you spill or it expands more than you anticipate. In addition to gloves you should protect your skin and eyes from exposure.

Pour Foam Calculator for circular areas

Example: You have a hole that is 8″ in diameter and 6″ deep. You would require .163 Gallons of 8lb density foam to be mixed. To account for uneven expansion and waste, you should have at least .25 gallons on hand. 

inches
inches
cubic inches
Gallons
lb
lbs

Recommended Supplies for Foam

Graduated Mixing Cups – An accurate measurement is extremely important to achieve optimum curing.

Mixing Tools – It’s very important that the foam is mixed thoroughly and quickly. For small amounts a tongue depressor is okay but for larger amounts you should use a power mixer. We sell both of these items.

PPE – When cured, urethane foam is EXTREMELY hard to remove. You should always wear gloves and properly prepare the area with plastic in case you spill or it expands more than you anticipate. In addition to gloves you should protect your skin and eyes from exposure.

Pour Foam Videos

This video demonstrates how quickly the foam begins to expand once mixed. 

This video demonstrates how hard the foam cures to. This is relatively soon after the first video.

Additional information

Weight 91 lbs
Foam Density

2lb Density, 4lb Density, 8lb Density, 16lb Density

Kit Size

4 lb Kit, 16 lb Kit, 80 lb Kit

30 reviews for Expanding Foam (Pour Foam/Two Part Foam)

  1. John (verified owner) –

    I ordered two of these kits to fill the pontoons for my boat . I want to say thank you for helping me figure out exactly how much I needed to get the job done. And the fact that you expanding foam is Coast guard approved for flotation as well gives my wife and I some piece of mind. All in all you have a great product at a very reasonable price. I will definetly be referring you to my friends in the future.
    John R.

  2. Austin (verified owner) –

    I purchased this expanding foam kit to repair some damage in my hull. I called in and was informed that the foam was rated by the coast guard for flotation. After doing some independent research I found out that this foam really is tested by the coast guard. I already knew you had the best pricing, but I was also happy to know that that my family and i woudl be safe on the water using this foam to fill our hull, and not have to worry about being water logged again in the future. Thanks
    Austin D.

  3. Mike (verified owner) –

    Great product! Much cheaper than tap plastics X30 but seems to be identical.

  4. Rob (verified owner) –

    Mixed them together, expanded right away. No problems!

  5. Don Minnick (verified owner) –

    Product worked great for filling boat flooring

  6. Joe Barnes (verified owner) –

    Great product, sensitive to heat and the temperature of the environment you’re pouring in. It expands more in a warmer environment. Great company to order supplies from.

  7. John Clumpner (verified owner) –

    Great product, very easy to mix and pour. Plenty of time from the mixing and pouring before it expands. Expands very nicely and fills all the nooks and crannies.

    Will buy from this company again.

  8. Matthew Weckbacher (verified owner) –

    Easy to work with and expands nicely.

  9. Marshall foster (verified owner) –

    Great product and great service

  10. Mike Metz (verified owner) –

    Great product at a great price. Unless it’s warm you don’t get the max expansion but they tell you that. Forms a very even bubble and surface that’s easy to shape and fiberglass when dry. Only complaint is it took 10 days between when ordered and when shipped. Will definitely recommend this to friends.

    REPLY FROM CUSTOMER SERVICE:
    I’m glad you enjoyed the product. We’re sorry about the shipping delay. We had an extremely large order that used the rest of our inventory before our next order of drums was due in. This is not the norm. We hope for an even better experience next time.

  11. Bobby (verified owner) –

    Great product. Be ready to work quickly and I recommend using about 1/2 as much as you think you’ll need on the first pour.

  12. Gary Sikina (verified owner) –

    I do stained glass and this two part mix foam is great to hold the large lamp shade in place for shipping then the pop corn foam. I’ve started with a small can first to try out and was pleased with the results and learn how to work with the mix.

    Maybe I may get the 5 gallon when I make a storage area for the cans.

  13. Denny Clark (verified owner) –

    Did exactly what I needed it to do. Worked awesome.
    Definetly will order it again for other projects.

  14. Denny Clark (verified owner) –

    Great product worked awesome
    Will buy product again

  15. Concept26 (verified owner) –

    Great Product and Great People.

  16. david (verified owner) –

    duz not hold up in sunlight seems too shrink and warp

    RESPONSE:
    We have tested this a great deal in the sun with absolutely no problems. I would suggest you check your measurements or give us a call for a walk through on how to use the material.

  17. Cory –

    I use this foam in a manufacturing process to insulate tubing. The slow rise allows the product to go all the way to the bottom of our product before it starts to expand and fill the void.

  18. William Daisley (verified owner) –

    I was very satisfied with your AB foam. I applied at 70 degrees and it filled all the voids in my boat very well!

  19. myron briscoe (verified owner) –

    Kit was fresh, expanded well,and was easy to use. Just as described

  20. Swift Car Audio (verified owner) –

    When it comes to forming and molding custom door panels this product works great the AB kicks off just right. It Strong enough to hold it shape but Light enoughTo be sand down

  21. Swift Car Audio (verified owner) –

    When it comes to forming and molding custom door panels this product works awesome!!!!!

  22. Gill (verified owner) –

    I bought 2 40lb kits. The first "science experiment" was not so great.

    Phase I – Approximately 5:45 82 degrees outside, product temp was higher! (huge difference) Poured in Part A. Poured in Part B into 5 gallon bucket. Inserted electric drill attached paint stirrer and within 10-15 seconds HOLY GUACAMOLE! My "Lab Assistant" shouted, "Its coming up!" It was Old Faithful! This stuff exponentially expanded and we tried to quickly get it into the funnel. The tip of the funnel clogged after about 1/3rd of the barrel filled. With no further draining, the remainder of the product was expanding all over the funnel, the barrel, the ground, and us! Clean up took hours. This stuff does not clean up easy. Use PLENTY of plastic around your floor/mold! It destroyed our gloves, shoes, shirts, pants and my "Lab Assistant" got it on his bare leg. Removal was like waxing a bear. He had a clean stripe down his shin.

    11 pm. time to go home.

  23. Toby (verified owner) –

    I have ordered this product multiple times and have never had a bad experience. The foam is fresh and expands like it should. We use it to fill skimmers for draining sedimentation ponds down and it just works.

  24. James (verified owner) –

    Needed a structural pour product and this did the trick. Works as advertised at a competitive price. Only complaint was no user docs. I specifically want to know what temperature range I could pour… Found the info on another site.

  25. captain rod (verified owner) –

    great stuff!! excellent customer service

  26. Christian Asero (verified owner) –

    Worked amazing for a pour in place stringer for my boat! This stuff cures to be almost as hard as plastic.

  27. victor huff (verified owner) –

    It actually works. I did’t know what to expect of this product but it does everything it says it will do, amazing!

  28. victor huff (verified owner) –

    This is one of a few products in the country that actually works, good job!

  29. Frank (verified owner) –

    The fence post tops where I was going to use this product have rotted so bad I have contracted to have all the fence replaced. The contractor starts tomorrow.
    Sorry I can’t rate the product

  30. Andy (verified owner) –

    Good strength, easy to use. best price. Used to rebuild a SUP, and to strengthen a Kayak.

  31. J.W (verified owner) –

    The 4lb expanding foam is just the density I wanted for flotation and reinforcement of my fiberglass top deck repair. It’s working time is quick but not too fast as I was somewhat concerned with. Great product would purchase again in the future!

  32. Andy B. (verified owner) –

    Excellent strength, on spec for density. Best price I found on-line. Using for a marine application.

  33. Mark@ Fiberglass Doctor (verified owner) –

    4 lb foam is great for supporting cracked fiberglass pool steps. Keeps rigid under pressure.

  34. Tri (verified owner) –

    Used on boat for support and doesn’t absorb water.e

  35. Jeff mills –

    Have no complaints about this product. It works great for all my needs.
    I would only say that the labeling of parts A or B, could be more consistent to avoid accidental product mixing.
    Thanks

  36. mike (verified owner) –

    Works great for molding duck decoys!!!!!

  37. Jerry (verified owner) –

    I use it to pour foam cores for carbon fiber fishing rod grips, illstreet Composites has some of the best expanding 8lb. foam I’ve used.

  38. Dennis (verified owner) –

    I used this foam to help prevent denting in a pivot roll on a New Holland round baler. A economical solution to an expensive problem.

  39. Michael (verified owner) –

    This product was great as well as Leslie’s customer service. She really helped me get this product as quickly as I needed it and kept me abreast of all things going on with it. Keep up the good work

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