Switch From a Synthetic Coolant to a Semi-Synthetic to Eliminate Rust & Skin Irritation
QUESTION: I am looking at possibly replacing my current coolant. I am having problems with the coolant leaving residue behind after the parts have dried. I work in a powder metal facility and it is a very porous material to work with. Also at this time of the year I face major rusting issues with the humidity. Your help in what may be a viable product for these types of conditions would be greatly appreciated.
ANSWER: It sounds like you are using a synthetic coolant. Synthetic coolants are prone to residues and poor corrosion protection. Are you grinding or machining? Is it steel, aluminum?
I recommend you try a semi-synthetic coolant ( also known as semichemical fluids). Look for a semi-synthetic coolant that is safe on all metals and offers superior resistance to bacteria and fungus. Pay particular attention to the percent content of oil. A semi-synthetic with around 25% oil will help with your corrosion problems as well as eliminate the problems you are having with residues being left behind after the water evaporates.
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This entry was posted on June 27, 2011 at 9:30 am and is filed under Rustlick. You can subscribe via RSS 2.0 feed to this post's comments.
Tags: coolant, corrosion, dermatitis, lubricants, metalworking fluid, metalworking fluids, residue, rust, semi-synthetic, skin irritation, synthetic
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October 7, 2011 at 9:09 pm
You could not be more right