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mold mate the making of a rubber mold 2

Posted on 2012-06-08, By A-Best Staff

MOLD MATE THE MAKING OF A RUBBER MOLD  2

 

Before placing packed frame into vulcanizer peel paper on back halfway and draw a quick sketch or number on bottom then roll the paper back covering it. This will give a permanent impression which will not rub off. Top off your rubber mold with 3 or 4 pieces of pre-cut rubber. Put 2 aluminum plates about 1/8" thick on top and bottom and put in a preheated vulcanizer 225ºF. Tighten slowly until you have some resistance and let sit for 2 minutes to heat up. Then tighten a half of a turn every 2 minutes until tightened completely.

 

Rubber will ooze out of your relief holes which is normal. If none comes out you do not have enough rubber. A vulcanizer can cost from $300. To $800. If you want to try your skill and don't want to spend so much money at the beginning, use 2 aluminum plates, a mold frame and 2 "C " clamps using the same procedure. Preheat your kitchen oven to 225ºF insert your mold frame for 2 minutes.

 

Then talk it out with oven gloves tighten completely and put back for 40 minutes (depends on the thickness of the rubber mold). After time is up, you can immerse in cold water.

 

CAUTION: THIS MOLD IS VERY HOT

Do not cut a hot rubber mold!

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