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Friday, August 5, 2011

The Deep Pour - Or Why You Need Polyester Casting Resin Part One

 I have gathered a few interesting molds from the Environmental Technologies mold catalog.  These are re-useable, self releasing polypropylene molds for use with Castin’Craft Clear Polyester resin.  I am definitely conditioning them with a mold release.  
All molds require mold release when casting with Clear Polyester Casting Resin. ETI recommend Mold Release/Conditioner as a release agent and to clean, condition and extend the life of your molds.
This resin is very different that Envirotex Lite.  To begin, opening the can requires a little planning.  I punctured a few tiny holes so I can pour slowly.  As always, measuring is the key to success.  For Polyester Casting resin you add drops of catalyst to ounces of resin.  Instructions and measurements are on the product.

You really need to read the instructions for this product.
Casting resin’s curing process is caused when heat is generated by the chemical reaction that takes place when catalyst is added to casting resin. Keep this in mind when reading through this bulletin and working with Castin’Craft Casting Resin.
I would also strongly advice you to read the Castin' Craft Idea book which is available free online.
This is what I will be embedding for my first project!
See you Monday!

Remember, due to the nature of casting resin, consistent results are obtained through attention to detail. Never place one of a kind objects in casting resin, because once in, it is almost impossible to remove. Always practice before doing your final piece. Start small and work up to larger items so you can become comfortable when working with casting resin.

5 comments:

  1. Monday Monday....we are waiting with bated breath! :D Great website. Love your work. Resin and non-resin. Thank you for sharing. :)

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  2. Hi Carmi,
    I visited your site while searching for what product to use as the "grout" in a project using an old 6- paned window. I have been collecting sea glass, small shells/starfish, and small polished stones to create an ocean inspired privacy screen in my kitchen window. I will be gluing the items very close together on the panes and would then like to apply something like a resin to cover the mosaic and act like a grout in the spaces between the objects. I have been reading about different products out there and am finding that these resins tend to yellow in sunlight. Do you have a suggestion? I like the look of the windows featured on gardenglasswindows.com and 2brokenbroads.com. Thanks, Mary Madara

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    1. Mary I am glad you checked in! We do not recommend our products for outdoor applications. UV rays from the sun will yellow most clear finishes in a relatively short period of time. Long term exposure will result in the degradation of the coating.

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  3. could this be used to line my wooden soap mold? would it release? any issues that I would need to be aware of?

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    Replies
    1. That would be a question for our customer service department. They answer all these questions.
      http://eti-usa.com/contact/

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Thank you so much for leaving a comment on Resin Crafts Blog! For technical questions you can email our customer service at: msanchez@eti-usa.com or via telephone @ 1-800-368-9323.