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Official Resin Thread

  1. #1

    Official Resin Thread

    Just wondering if anyone knows of a resin casting supplier that sells quality resin for less than $75.00 a gallon for the 1:1 ratio kind. I looked on the net, and no answers on the RPF. Anyone have any clues? Tanks.

  2. #2

    Merged: Re: Resin Casting Materials

    http://www.smooth-on.com/plastics.asp

    Great stuff! Their Smooth-Cast 300 Series is only $60 a gallon.

    They've got a HUGE range of resins to choose from too:
    http://www.smooth-on.com/liqplas.htm

  3. #3

    Merged: Re: Resin Casting Materials

    Cool Thanks sooo much.Have you used it yourself? and Do you know what the curing time is on that? I didn't see it on the site.

  4. #4

    Merged: Re: Resin Casting Materials

    Yep, I've used it. I think the cure time for the 300 is spec'd at 10 minutes, but it varies depending on how thick the piece is. I've had GREAT results with it and have no complaints yet.

    EDIT:::
    If you want to try it out, you can buy sample packs of there products too. It's a great deal.

  5. #5

    Merged: Re: Resin Casting Materials

    Did you try the 320 series at all? or just the 300? I would rather depend on your opinion than go through all these samples and shipping costs, since I have a large amount of stuff to get done soon. Wow, 10 minutes is fast, the micromark brand I've used is a little longer, but not by much.

  6. #6

    Merged: Re: Resin Casting Materials

    The 10 minute stuff is good but you have far less time to work out bubbles. If the casting you are doing are small then it should be fine and it does make for a lot faster casting process. If the casting are bigger, then I would go for the slower stuff. I think the 300 series has a 20 to 30 minute set up time. It takes longer but the air bubbles have a lot better chance of escaping. Good luck and I would definetely go with smooth-on. They are fast and have a great customer service.

  7. #7

    Merged: Re: Resin Casting Materials

    Thanks, I'm gonna go with the 30 minute curing one. 10 minute curing could really make us go frantic. Heheh Thanks a lot. Both of you are an awesome help.

  8. #8

    Merged: Re: Resin Casting Materials

    Exactly what Spidey said...go with the longer cure stuff. You can't go wrong with Smooth-On. (sounds like a commercial)

  9. #9

    Merged: Re: Resin Casting Materials

    Going Right on... with smooth-on! (Commercial #2) One gallon ordered. Gonna get those greeblies a crankin... Thanks again!

  10. #10
    Fetthunter's Avatar
    Member Since
    Jun 2002
    From
    Huntsville, AL, USA
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    2,215

    Merged: Re: Resin Casting Materials

    What products from Smooth-On would you guys recommend to make a small, flexible mold? I need something of the silicone/Urethane variety to make a mold of a small (2" x 5") part, and then I need (preferably) some sort of epoxy resin to cast it with.

    Suggestions?

  11. #11

    Merged: Re: Resin Casting Materials

    Actually, the silicone molds from micromark are more flexible than the GI1000 stuff, but still great. It was really easy to get our casts outta the micromark 1:1 ratio kind. http://www.micromark.com You can tell a difference though, the GI1000 is great for multiple use, cause it's more durable, it has a ratio, so you will have measuring problems to deal with, but a bit on the higher scale of quality silicone. Not sure if we've used smooth-on for our molding material.

  12. #12
    Fetthunter's Avatar
    Member Since
    Jun 2002
    From
    Huntsville, AL, USA
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    2,215

    Merged: Re: Resin Casting Materials

    What would you suggest to actually cast the part with? I'd prefer something easy to work with and durable. This part will not be under stress, but I'd like it to survive light abuse withour crumbling.

  13. #13

    Merged: Re: Resin Casting Materials

    Smooth on also makes RTV that is good for casting parts. It is real easy to work with. There is the RTV and a catalyst that you mix together in a (10:1) ratio. If your part needs a two part mould then its a little harder but not much. Each side takes a day to cure out but its worth it in the end. They make different types of RTV depending on what application you are using it for. The best thing to do would be call Smooth-on and tell them what you are trying to do and they will help you out with the right product.

  14. #14
    Eagleskull's Avatar
    Member Since
    Aug 2003
    From
    San Diego, Cali
    Posts
    328

    Merged: Resin

    this is a stupid question How do u make a resin or cast of something like for example a helmet?

  15. #15
    Admin Staff obi sean kenobi's Avatar
    Member Since
    Jul 2003
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    United States
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    1,115

    Merged: Re: Resin Casting Materials

    okay - i want to make the tippy top of the jet pack rocket with resin.
    Can I just pour the smotth coat 300 into a cone shaped paper cup and let it cure?
    Would that work??
    Do I have to brudh the insode of the cup with mold release or does it not matter since the paper cup is disposable anyway?
    Im a complete resin novice - let me know?


    LMK -
    Sean

  16. #16

    Merged: Re: Resin Casting Materials

    Mold release is your friend. I have never tried a paper cup, but I am sure that resin would stick to it unless you have mold release or just plain vaseline... that would work. You have to be careful of spilling resin everywhere, paper cups are pretty pourous.

  17. #17

    Merged: Re: Resin Casting Materials

    Another thing about resin you need watch out for is getting on your skin. I have found that after months of working with the stuff, every time it touches my skin, I break out in a nasty rash.

    Lesson learned: Wear gloves and have lots of paper towels handy

  18. #18
    T-Visor's Avatar
    Member Since
    Nov 2003
    From
    Moesko Island
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    379

    Merged: Re: Resin

    I ask myself this question. Im pretty sure, this is one of the biggest challenges for a costume, but what do you want to use for the mold? The Don Post BF Helmet? Only the 95' version is good enough and theyre very rare. I have a 97 which tends to develop warping and is not a good basis for a resin copy.
    The Rubies looks horrible, keep away from it!

    Check this out, its affordable!

    http://www.skygunbros-custom-creatur...sizeprops.html

  19. #19
    asok's Avatar
    Member Since
    Dec 2002
    From
    Indiana
    Posts
    2,704

    Merged: Question about resin cast

    If something is a resin cast what does that mean?

  20. #20

    Merged: Re: Question about resin cast

    One of many things. There are polyester resins that are used for fiberglass, and there are polyurethane plastic resins that a lot of prop makers use for casting. Polyesters are either clear or yellowish clear in color, and the plasitcs are ususally white or beige. Hope this helps some.

  21. #21
    asok's Avatar
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    Dec 2002
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    Indiana
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    2,704

    Merged: Re: Question about resin cast

    How strong are they if there is no fiberglass?

  22. #22
    blender12
    Guest

    Merged: Re: Question about resin cast

    I've found polyester to be very brittle on its own. If you drop it or drill it, good chance its going to crack.

  23. #23

    Merged: Re: Question about resin cast

    Polyester is rarely used for cast pieces, though. In large quantities, it gives off so much heat as it cures that it tends to ruin the mold it's in, as well as distort itself. Too much in one batch can start an exotherm and catch fire. (No, really- I wanted to see it for myself, and mixed up about a half a quart and left it in a paper cup. It started on fire and made a horrible mess.) Usually, "cast resin" refers to urethane-based casting resins, which are the white or bone colored resins previously spoken of. Urethanes are very strong and durable.

  24. #24
    cal196's Avatar
    Member Since
    Aug 2004
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    Earth
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    2,617

    Merged: Having trouble with painting resin.

    I got a solid resin custom blaster that is made from resin and i cant get any kind of paint to stick, you can scrape it right off, I have not tested rustoleum yet.

    Any suggestions for paint?

  25. #25

    Merged: Re: Having trouble with painting resin.


    cal196 wrote:

    I got a solid resin custom blaster that is made from resin and i cant get any kind of paint to stick, you can scrape it right off, I have not tested rustoleum yet.

    Any suggestions for paint?
    Have you washed and cleaned the blaster with good hot soapy water and rinsed it well before painting???

    You have to wash resin parts to remove any mold release agents as will not let paint stick to well.

    I would also prime the peice with grey auto primer before putting the main color coat down.

    Lynn


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