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Casting Resin

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Uploaded by on Jan 13, 2008

Working with POLYURETHANE CASTING RESIN from www.hobbysilicone.com - shot with a Flip Ultra (hand held)

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Uploader Comments (chillnhill)

  • Would this polyurethane resin be strong enough to mold fingers for a My Twinn doll that is missing 4 fingers on her left hand? The doll is made of polyurethane.

    I read about using Alumilite mold putty to make a mold of the fingers. Would the Alumilite work or hold up to the polyurethane resin your using? Hope to get a response from you.

  • @mushrose yes, the resin should be ok for that. I have also used Alumilite mold putty and it works fairly well, but can be hard to use on very small objects. Good luck!

  • Is Polyurethane Resin extremely brittle when cured? I tried to replicate a spool and the end-caps snapped off while de-molding after waiting about 15 minutes!

  • @Shanjaq - there are many different types and manufactures of these resins. Generally the stuff I get from Hobbysilicone is not overly brittle, at least compared to the types normally found in craft stores.

  • Doesn't Polyurethane Resin shrink in the casting process? How much does it shrink if it does (what %)?

  • @darthspeaks - the shrinkage in resin we used is negligible in the fairly small sizes we cast. It might be more noticeable in larger pieces, but we haven't tried very big amounts.

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  • try the spray primer Kilz from Home Despot. If any thing go over your piece lightly with a fine steel wool just to give it some tooth for the primer to stick to.

  • @Scorchie see if this works for you /watch?v=b_Bkf-m-Ui4

  • I've been trying to make and paint my own figurines, but had the WORST time getting paint to stick to my casts. It usually just peels or rubs off. Any tips you can give to help get paint to stick? Somebody suggested Auto Primer to me once, but that just came right off as well.

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