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wchuck

How To Make Color Swirls

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I do it with a split cup.  I glued a partition in the middle of one of my pyrex cups.  I warm up the cup on a hot plate then pour different colors into the sections.  I hold the cup as high above the mold as possible and still hit the hole.  I pour the smallest stream that I can which allows the plastic to swirl.

 

The hardest part is making the cup.  I used some aluminum flashing and glued it in with JB Weld.  I've not had many colors that looked very good unless one of them was white.

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