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Hi czetu, I have a qestion regarding this product. I am a mold maker, and need a backing structure for an electro-formed mold which is an irregular shaped 2-part shell. It is to be used in a roto-cast application under 500 degree F. can this material take ..say 50psi of pressure under this...

einzats responding. The crucial point in my process is; I am casting small parts with extreme detail. It is the miniscule protuburances where air becomes trapped. Think about a very detailed piece of jewellery being cast in wax. The "high-tech" way of producing "voidless&quot...

Patprimer, thanks for your response. I did an experiment by drying a silica compound [heat] and coating the inside of the mold. After the cast was made I noticed the powder did enter all the cavities as expected [electro-static reaction I assume] and it absorbed into the material. Just one...

To ir12, I am intrigued by these dispensing methods you discribe. Nitrogen blanket? The dispensing method I am using now is plastic syringe and pvc tubing [small gauge]and injecting from bottom. Sometimes I use vibration. Heating the molds is good, but the cure time of the material becomes...

einzats Hi, my problem is a old one that hasn't been effectively solved in an economically sound way. I am casting small resin parts {urathane,epoxy etc.] in small rubber molds. They are designed with efficient vent systems etc. I have used vibration casting, vacuum casting, pressure...

Hi, this is einzat. The question I have is; I need to make hundreds of thousands of polymer-wax parts that are small-about 3"x1/4" at the largest. My plan is to re-create 20 or so parts using a soft epoxy compound [like putty] in my soft silicone[reinforced] molds, then cradle them in...