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Thread: Seat Insert Pour Material and Technique

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    Default Seat Insert Pour Material and Technique

    Does anyone have any experience with pouring seat inserts? I have done it once before with a material that seems expensive for the job.

    What material did you use?
    Tips and tricks for doing it and working with it?

    Thanks

  2. #2
    RaceTape Ninja Force McCocken's Avatar
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    Never for a race seat, but these are pretty helpful in some ways...





    I do have experience sculpting foam and upholstery for automotive and seating products. The second video is pretty thorough.
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    Yer pal,
    Force

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    You really don't need the expensive seat bead kits. I have made a few with 2 part foam in a trash bag. I forget what foam I used.

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    Thanks Force!!

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    I used the 3lb. foam from U.S. Composites. Worked great.
    Urethane Foam , Expanding Marine Polyurethane Foam

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    Quote Originally Posted by eflove View Post
    You really don't need the expensive seat bead kits. I have made a few with 2 part foam in a trash bag. I forget what foam I used.
    Is there any concern for the flammability of the foam you used? Nobody wants their form-fitting seat melting to them or becoming a wick.

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    Sir flink
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    I think polyurethane foam is pretty nasty - easily ignited and produces acutely toxic gases. But if your seat catches on fire you're probably beyond caring.
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    Fire seems like a legitimate concern to me. This post is somewhat informative. Upon a cursory search, it looks somewhat more difficult to find fire-retardant expanded-polystyrene beads. I haven't seen fire-retardant urethane foam other than architectural spray applications.

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    Senior Member Gian's Avatar
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    I believe Coleman Racing has seat foam kits. Do not think they are flammable. I'll post a link when I'm not on my phone
    That's not a Typo, I just can't spell no so well.

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    RaceTape Ninja Force McCocken's Avatar
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    I will try to check into it, but I know some furniture applications for foam have to meet particular fire retardant standards. While not 'pour and form' it could be an alternative...shaping the foam by hand.
    Yer pal,
    Force

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    Senior Member Gian's Avatar
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    It was Butlerbuilt BBP-2072-M E-Z Sert Pour-In-Place Seat Insert Kit - Speedway Motors, America's Oldest Speed Shop that has the seat kit. It's a little pricey. But has everything to do the job.

    In other news. RIP Bill Smith He was always in to cars, racing or show.
    That's not a Typo, I just can't spell no so well.

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    Hi, will this furniture application will easily available in Australia. I need the professional one?
    Protection!

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    RaceTape Ninja Force McCocken's Avatar
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    Sunmate sells FIA rated sheet foams. They are based out of North Carolina. I had good service and results with it.

    https://www.sunmatecushions.com/page...m-applications
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    Old timer craZee's Avatar
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    I did the two part foam bead bag one time. All was good until my wife caught me shaping it with our electric carving knife from her kitchen. LOL

    craZee
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    Administrator ucfbrett's Avatar
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    I've never poured a seat, but I wouldn't skimp on materials. The reason you pay more for race-specific foams must be due to their fire-retardant nature. A readily flammable foam can turn an escapable incident into something life threatening or, at the very least, life changing.

    Don't f#&k around with fire. You lose every time.

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    this is the stuff you want- SFI rated. We use this stuff in our NP01's. Do not use the bead seats, if you get a good whack, the seat is no good and needs to be replaced. The BSCI stuff is good forever. It will absorb the impact, and is resilient. Make sure you take everything out of your pockets when you pour the seat.... One NP01 driver has an Iphone implant in his seat....lol

    https://www.youtube.com/watch?v=eRk9d9uiX14



    https://www.hmsmotorsport.com/produc...red-foam-seats
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    Thanks,

    Chad
    2016 Elan NP01 Prototype #02 (Chassis #20)
    1969 911ST vintage racer
    1972 911T Numbers Matching under restoration in my garage

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    Old timer craZee's Avatar
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    One NP01 driver has an Iphone implant in his seat....lol


    Eventually they will stop providing support for that phone!

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    For fire-rated, resilient foam, this is an option that meets automotive flamability requirements, if you don't require SFI certification: https://www.smooth-on.com/products/flexfoam-it-7fr/

    It appears that the test results, showing zero after-flame time, would comply with SFI 45.2
    Last edited by jwmelvin; 07-09-2017 at 09:44 AM.

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    Senior Member fatbillybob's Avatar
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    Plavan gave us a gift. Take it. Sfi foam rating is for more than fire response. How it handles impact is also part of the spec... Not all foam handle deceleration of body parts equally.

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    Related reference - the FIA stipulates a specific type of foam for F1 cockpit headrests.

    "The padding must be Confor foam. This foam is relatively soft when touched, but when subject to a severe blow the foam hardens to absorb the load and is then slow to bounce back. This characteristic protects the driver from both the initial blow and any whiplash response."

    This is the part I always found interesting:

    "As this foam is heat sensitive there are two specifications required for different ambient temperatures, the FIA will inform the teams which specification must be used for a specific event. A Blue foam (Confor CF45) is used for ambient temperatures over 30c and pink foam (Confor CF42) for temperatures below that."

    I believe that correlates ambient temperature w/ foam density. If you watch F1, you may occasionally hear the required foam referenced in an event. Most recently by Brundle at Azerbaijan w/ Hamilton's woes.

    More details on this old Scarbs post: In Detail: F1 Cockpit Head Rests | ScarbsF1.com

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