A hypothetical factory reports aluminum saw coolant foam in a supplier-accepted water-mixed circuit.
Aluminum Saw Coolant Foam
Castrol separates mechanical air entrainment and agitation from water, concentration and contamination factors.
Share existing records of onset, operating circumstances, fluid or water changes, concentration history and known contamination. Keep staff reports separate from provider conclusions.

Additive
Master Fluid Solutions describes defoamers breaking bubbles; filtration, chips and parts can carry the additive away.
Record reported bubble appearance and persistence; neither alone identifies the cause.
Less foam does not prove the cause is fixed.

Decision
Ask the responsible providers what the purchase should accomplish. Record their answer with the supplier and proposal reference.

Discuss
Contact Jiurun with your actual cutting job.
Jiurun manufactures industrial aluminum and nonferrous circular-saw equipment. Wet-circulation configurations, additive supply, chemical diagnosis and trial services are not established here.