1. Do not heat resin mix too much before adding plasticizers, since selective absorption of liquids may take place. 2. Preblending liquids will give a more even mix in most cases. 3. Do not overload mixer. 4. Steam may be used on the jacket, but it is not necessary. Start-up time will be longer without steam. 5. Drop by temperature or power peak, not time. variables in heat-up time, ingredient temperature, operation efficiency, etc. will not be compensated for if a time cycle is used. A power recording chart will give better control of dry point.
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