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Posted: 12/7/2021 6:44:30 PM EDT
[#1]
QPQ is more of a finish than a coating. Do not use anything abrasive and you should be fine.
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Posted: 12/7/2021 7:03:07 PM EDT
[#2]
Also known as 'Tufftride', or 'Melonite'. Used for years on high performance crankshafts.
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Posted: 12/7/2021 8:57:04 PM EDT
[#3]
Yeah its not a surface finish in any sense as a coating. Its more of a surface hardening or treatment that goes into the molecular structure of the steel. Goof Off or WD40 or even acetone will be fine on a terry cloth to scrub with.
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Posted: 12/8/2021 6:13:08 PM EDT
[#4]
QPQ is nitriding (Ferritic nitrocarburizing ).
It is a surface treatment, a proprietary case hardening process that diffuses nitrogen and carbon into ferrous metals at sub-critical temperatures during a salt bath. Not a coating. Quench-Polish-Quench (QPQ) Process This is done by immersing the parts in specially formulated 'salts' between 400°C - 425°C (750°F -800°F); (2) Polishing: to improve surface finish and (3) Re-oxidation: to recover the oxide layer thickness that may have been lost during the polishing step. |
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Posted: 12/9/2021 6:43:33 PM EDT
[#5]
Oil. Whatever you have handy. CLP, mineral oil, cooking oil, WD40, whatever. It softens the adhesive so you can wipe if off.
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Posted: 12/9/2021 7:43:33 PM EDT
[#6]
Thanks everyone for your replies.
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Posted: 12/13/2021 3:31:41 PM EDT
[#7]
Update: used some non-chlorinated brake cleaner and it came right off. Quick wipe down with CLP and that was it.
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