Trim E206 vs. Hocut 795-H vs. Quakeral 388 PE

We are testing 2 new coolants to replace our existing coolant (Trim E206). The coolants we are testing are Hocut 795-H and Quakeral 388 PE, both are being tested in all brand new machines. All coolants are mainly used on cast iron and zinc parts. So far, our tool life has significantly increased with Hocut 795-H and I am pleased with the amount of money we save from not needing sumpside chemicals and D.I. water as compared to E206. However we still need to try the Quakeral coolant. When I was filling a new machine with quakeral for the first time I noticed that it had had white chunks in it that I could scoop with my hand even though I was using a proportioner set to 6%, I was wondering what this could be caused from and if the quakeral 388 PE is "just as good if not better than Hocut 795-H" as our salesman says.

 

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Dear Reader, Some coolants will chunk up upon mixing and need a real good “shearing.” Chunky coolant has the HLB ratio off some and I believe needs more formulating work. When mixed it should give a clean mix. I think that that is a minus in that not everyone will want to beat the heck out of the coolant to mix it. Could also be old stock or off spec. Thanks for the question, Bruce 

I thought it was Houghton vs. Castrol? Or have I missed something? Also is the Castrol a semi and the Houghton product a full soluble? Tony

No.  Both Products are water soluables.

You might have noticed that the inaguaral Death Match pits Quaker against Houghton.

My Bad - See below - Tony is Right - Castrol MB 50 v Houghton Hocut 795B.  They are both water soluble products.

Editor

All emulsions, semi synthetics & synthetics are water soluble. So you are not really answering the question.

I would recommend a close look at QualiChem Xtreme Cut 230 for both cast iron and other non-ferrous materials vs. either 795-H or 388PE.Cleaner running, non-foaming at high pressure 1,000-=1,200 psi.795 and 388 would foam out of the tank at those pressures. Mixes so easy, no clabbering as mentioned above.

Dear Reader As I recall, Quaker had a line of coolants called Microcut the 540 series were what were termed at the time neosynthetics and these had to be recirculated to emulsify. Once in solution these were good products, now there many reasons why a coolant would chunk up when mixed with water, the most obvious is the coolant needs more formulating work another is the fatty acid ratio is off and is upseting the HLB balance. Either way I would report the incident to Quaker and have them deal with this issue it is after all their product. Good Luck Dom

The tool life increase could be the new machine set up as well. We have developed a product in India Power Synthcut 25 S, a semi-synhetic product specially for Cast Iron application which does not give any foaming issues and is comparable to any worldclass products like Castrol, Hocut, Quaker, Blasser, etc.

Houghton has a great line of products but I have yet to find a product that out performs Chemetalls Tech Cool 35052. We have found it leaves less residue allowing to see through our machine tool windows again. Also it is biostable without the use of trizene based bactericides. And to top it off it has one heck of an ep package. Tool life and sump life have rocketed and we have been able to almost eliminated our disposal costs. http://www.mmsonline.com/articles/metalworking-solution-for-difficult-to...

You may be looking at defoamer. We've noticed changes recently in defoamer chemistry which causes solubility issues...it's especially noticable in premix tanks.

Generally if there is mixing problems of addition of coolant to water the HLB of the colant is out of balance. You can easily test this by adding coolant to water in a measuring cylinder at say 5% and observe the strike of coolant going into the water phase. Cast iron requires good low point / boundary lubrication ie ester / fatty acid etc plus excellent anti-corrosion and biostability. To be honest this shouldn't be hard to achieve

Hey Trim E206 is an old 1980 coolant which worked fair for us back then. We now have the new Trim MicoSol 585XT running over a year with no rust, rancidity, dermal, or foam even at 1200 psi. Our operators love how clean it runs with no sticky residues and they can see through their windows. The coolant makeup is very low at only 1.5% reducing coolant purchases by over 60% compared to Hocut 795. My guys tested Quaker 388PE but did not like it because it was sticky and dirty. Trim MicroSol 585XT coolant is the best we have ever seen and we have tested many. Large job shop doing automotive, aerospace and medical parts.

There is no ASTM "stickiness" test (See the TECHNOLOGY / STANDARDS page).  I was once told by a coolant salesman (Warning Will Robinson!) that the residue contributes to the prevention of rust after machining.  That said, it really is an issue for operators.  When I was running the MWF program for Dresser Industries, we performed lab tests for paint compatibility, elastomer compatibility, and polycarbonate compatibility as these were all significant issues on the shop floor.