OT Epoxy Resin cars |
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OT Epoxy Resin cars |
Unobtanium-inc |
Jan 14 2021, 07:05 PM
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#1
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Advanced Member Group: Members Posts: 2,199 Joined: 29-November 06 From: New York Member No.: 7,276 Region Association: None |
Me and the kids decided to start playing with Epoxy Resin. Avi made little tea cups, I made Porsches!
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burton73 |
Feb 3 2021, 11:17 PM
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#2
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burton73 Group: Members Posts: 3,486 Joined: 2-January 07 From: Los Angeles Member No.: 7,414 Region Association: Southern California |
If your mold and material is very cold and the pouring area is cold you can have problems. Pre-warm up the molds and material to a nice 80 or 90 degrees or more and it will help. Also, if you have a vacuum chamber for some reason, mix, and then deair the mix for a couple of minutes and pour slowly in the mold. The very small bubbles will come out in the chamber Part of that combo is used for A/C system but the pot can be a modified 3 paint pot.
You can also use a paint pot and set it up for 30lb PSI. The bubbles will get so small that you will not see them but you have to leave the pressure on for a long time to make sure the plastic is hard. If not hard the bubbles will show. I just put my pressure on the compressor line and leave it overnight and open it up in the AM Been casting this way for 46 years. Bob B 3 Gallon Vacuum Chamber and 3 CFM 1 Stage Pump to Degassing Stainless Steel Set up is like $100. |
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