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Thread: 2 part pour foam into mold advice

  1. #1
    Senior Member MacGyver's Avatar
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    2 part pour foam into mold advice

    Has anyone used the 2 part pour foam in a mold before? If so, what is used as a release agent?

  2. #2

    Re: 2 part pour foam into mold advice

    I have worked with Smooth-on products (foam-it). You need to use a specific mold release agent. The one I used was a Mann Product sold by smooth-on (smooth-on.com). I forgot the exact type (100 or 300?) but it was in spray form. For some reason it's not listed on their website.

    Here's a link of similar product in a paintable form. just scroll down to the polyurethane foam section. They have the ER2310 and ER2770.

    http://www.mann-release.com/prodgude...omer%20Casting.


  3. #3

    Re: 2 part pour foam into mold advice

    MacGyver, I found it. the product in aerosol form is Mann Ease Release 1700

    http://www.fibertek.ca/waxes.htm

  4. #4
    Senior Member MacGyver's Avatar
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    Re: 2 part pour foam into mold advice

    I did a test last night by applying 2 part foam on a scrap fiberglass part. For release I tried a heavy coat of Parting wax, Spray Urethane mold release, Dish soap and a heavy coat of Vaseline. I found that the Urethane spray release worked the best as suggested. The second runner up was the parting wax. Thanks all for your input!

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