Cause:
The resin and pigment tend to stick to the equipment, accumulate, and then burn. The burnt material is released into the final product randomly and will damage it, causing quality issues that will lead to undesired waste of time, material and money.
Solution:
Preventative use, preferably weekly or after production with a single color/resin for a few days, using a designated RAMCLEAN® cleaning product. Be sure to follow the Injection molding purging cleaning procedure to get the best result.