Best Practices For Maintaining Coolant Quality*
Excerpt from TLT's Feature Article in August 2012, The Growth of Biobased Metalworking Fluids by Jean Van Rensselar. Read the rest of the article here when it's available.
Coolants need to be filtered and recycled regularly and the equipment completely cleaned at least annually. Assuming that workers are continuously removing metal chips and tramp oil, the Ohio EPA recommends the following coolant system cleaning practices for maintaining optimal fluid quality:
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