Q. We clean rubber casting molds — Nitrile rubber, EPDM, and other different kind of rubbers. Our cleaning method is immersion in heated bath 60 degrees Celsius, after half an hour take out and rinse with water pressure. We currently use Alcojet and are having trouble getting the rubber out of the molds.
A. The most commonly used rubber mold cleaner we sell is our well known Alconox® Powdered Precision Cleaner. When cleaning rubber casting molds, use a 1% Solution (10 g/L) at 60 deg C (as specified for Alcojet) and I think you will get better results. Some light scrubbing or using ultrasonic tank immersion will also help. There could be a couple of issues occurring as to why the rubber is sticking or adhering to the mold. I would first ensure thorough rinsing. We are happy to discuss further.
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