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Anonymous Poster

Reproduction Casting Materials

06/22/2006 9:20 AM

John Bogue writes:
Sirs:
I am searching for materials to reproduce veterinary teaching models and artifacts of natural history.(Horse skeletons/fossil wall plaques - 2'X 3'). Detail is essential. Pourable or lay-up materials are preferred. I have 12 years of experience using urethanes & plasters (with additives/without). Looking for a better mouse trap.
Thanks,
John Bogue

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Guru

Join Date: Dec 2005
Location: Wisconsin USA
Posts: 824
Good Answers: 37
#1

Reproduction Casting

06/23/2006 8:52 AM

There's a company that offers MANY kinds of science specimens and reproductions already made up, and has casting and molding materials. Check out http://www.enasco.com/ in Ft. Atkinson, WI, or Modesto, CA.

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Associate

Join Date: Mar 2006
Posts: 25
#2

Molding Agents

07/05/2006 11:57 PM

I have used common candle wax and got excellent results. Coat part with a light film of spray cooking oil as a simple release agent-wipe off excess w/ nonlint cloth- You will get perfect results- oil will wash off on cleanup with soap and water- I have used common dish soap works fine. More difficult to remove is silicone release agent. Use common kid play clay to the half at parting line's- build the dam around an inch or so above the highest point of item. Heat wax to about 110F to 120F and let cool till a cooled film appears on top of hot wax- scrape back or remove and pour over item quickly- you will have slash lines if you joggle the pour. Try to have all items at a warm room temp.- 75F to 80F let all cool to room temp. and gently pull from item-WYSeenIWYG. I use a self-regulating soldering iron to mend any cracks and to weld on or together- also small-3/8" id-?piece of tubing-length?- coat with cook oil and pour in wax- makes great soldersticks- may need help of poker dowell rod. Easy Fun!

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