Do operators need special training to run a refractory mixer?

Yes, because castable mixing is far more sensitive to water ratio and mixing time than standard concrete, operators benefit from experience with refractory-specific procedures to avoid weakening the cured lining. Incorrect mixing can lead to premature lining failure, which is costly given how much downtime a reline already requires. Sparkline Group can provide guidance or experienced personnel alongside the rented mixer for this reason. Having your crew briefed on the specific castable being used is a useful step before mixing begins. This attention to detail protects the investment made in the shutdown.