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2-Part Foam for Seat Fitting, Two Quart Kit

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This polyurethane foam kit produces a rigid foam with a density of about two pounds per cubic foot. It is ideal for making custom fitted seats or for strengthening composite bodywork parts.

When the two parts are mixed, they begin to react within about one minute. Most of the foaming occurs within the next several minutes. About 15 minutes is required for the foam to set. Allow several hours before any secondary operations are attempted such as sanding or carving (if required). The resulting foam will not absorb water and is not affected by polyester resin, epoxy resin, gasoline or oil. The compressive strength of the foam is 36 psi. It can withstand operating temperatures of up to 200°F. One kit is enough for about 3 typical formula car seat inserts.

Click here for an instructional article about Custom Fit Seat Inserts, including full instructions for this kit.

Part No.
Stock Status

Condition: New

In Stock
Related Product Groups
Custom Seat Insert Kits & Padding


by PowerReviews
2-Part Foam for Seat Fitting, Two Quart Kit

(based on 4 reviews)

Ratings Distribution

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  • 1 Stars




of respondents would recommend this to a friend.

Reviewed by 4 customers

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(1 of 1 customers found this review helpful)


2 Part Foam for seats

By dallas_

from Dallas, TX

Verified Buyer

Comments about 2-Part Foam for Seat Fitting, Two Quart Kit:

I used this product to make custom seat inserts for my track car. Works exactly as described.

Pegasus ordering was easy and the product shipped immediately.

Good product, good company to deal with.


Easy to use!!

By Mutter

from San Antonio, TX

Verified Buyer

Comments about 2-Part Foam for Seat Fitting, Two Quart Kit:

I got this product to make a custom insert for my sons Kart seat. All I can say is it is very easy to use. I think I can make 4 or 5 inserts for him with this one order. Much cheaper than buying a new seat as he grows and it fits him like a glove.

I would suggest reading the directions on the web site and watching a youtube video or two. For the most part it is straight forward!


Great product, simple to use.

By Bakersdoogie

from Bakersfield, CA.

Verified Buyer

Comments about 2-Part Foam for Seat Fitting, Two Quart Kit:

I used the two part foam to re-bed a bead seat in the cockpit of a WSR sports racer. One to one ratio mix made proportioning very simple and the reaction time was very workable. Works with most mold release products for forming parts. Adhesion to existing bead seat was excellent. Capable of multiple overlapping pours without any bonding issues. Make sure to wear nitrile gloves when using this product or you will be picking pour-foam off your skins for weeks. I have used pour-in-place foam prior to this experience and the results of this product did not disappoint. I would recommend this product for any structural reinforcement or custom molding procedures.

Service and delivery comments:

Service was prompt as it always is from Pegasus. Packaging was adequate to keep the cans from leaking. Arrived in great shape via UPS Ground.


Really works well!

By RobH

from Wake Forest, NC, United States

Verified Buyer

Comments about 2-Part Foam for Seat Fitting, Two Quart Kit:

I just made my first seat insert last night and it worked perfectly. For my insert, I planned for it to be in the range of 22x14x3 (924 cubic inches). To achieve this basic size, you will need 7-8 oz of both part A and part B (14-16 ounces total). I taped off the car with trash bags anywhere the foam could get to. I used a tall kitchen trash bag between me and the seat. I had a friend mix and pour the foam in the bag. It was very simple and worked great (no spills, no mess). There is enough liquid to create 3 inserts (maybe 4 if they are small). If you go beyond 8 oz each of part A and part B, you will likely have a mess to clean up. The liquid expands approximately 25x. You can always add more if needed. I started with 7 oz of each and we added another oz of each part once we could tell the insert was about 3 inches shorter than it needed to be. Hope this helps!

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