Sound technical content, curated with aloha by
Ted Mooney, P.E. RET
Pine Beach, NJ
The authoritative public forum
for Metal Finishing since 1989
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What do Plating specs MFZn1c, MFZn8-S, etc. mean?
Quickstart: Terms like "MFZn2" are *NOT* plating specifications. They're just CODES like "Class 1" or "Type 3" and are meaningless without the specification number they are found within. For example, Zn5 means 5µ plating thickness in some specs, but Zn2 does *NOT* mean 2µ thickness (it's from a different specification and probably means 8µ).
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Q. What's the MFZn1-SC plating?
C Ponniah- Chennai, India
February 16, 2024
Ed. note: Sorry, that's a code within some specification or other; it's meaningless until the specification it's contained in is named.
Q. I Want to Know about MFZn 8TC Plating
PAWAN KUSHWAHACOMPANY EMPLOYEE - DELHI INDIA
May 9, 2024
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Q. Does anybody know what the plating spec. MFZn-Ni 8-a3-3 is?
John J Colucci- Waterbury, Connecticut
2003
A. Hi John. That's not a spec, just a code within some spec.
The code "MF" means a ferrous substrate in some specs; "Zn-Ni" means zinc-nickel plating in some specs, "8" means 8 microns plating thickness in some specs. "a3-3" is probably a code describing the chromating requirement but I'm not sure. You must find out the spec number, obtain the specification, and plate in accord with the spec in its entirety.
Good luck!
Ted Mooney, P.E.
Striving to live Aloha
finishing.com - Pine Beach, New Jersey
Q. Regarding Honda's plating spec no. MFZn2-C. What color would the chromate be on this spec? It seems unclear whether it would be clear or yellow chromate.
Thanks,
metal stamping manufacturer - Geneva, Ohio
2004
A. Per your question regarding MFZn2-C, "C" means Yellow passivation.
B means Blue passivation, and K means Black passivation
- Bangkok, Thailand
June 22, 2009
? I think C may refer to CLEAR and K may refer to Black? Be happy to hear from someone who KNOWS!
Debbie A [surname deleted for privacy by Editor]- Grand Rapids, Michigan USA
July 27, 2010
A. C means the Zn plating color is yellow, and B means Bright color.
FRANK HSU- Taichung, Taiwan
February 14, 2012
Q. Hello,
What Honda spec is code MFZn2-C defined in?
Thanks,
John
- Cleveland, Ohio, USA
April 28, 2014
A. Answering my own question...
MFZn2-C is defined in Honda spec HES D2003-05.
How to interpret MFZn2-C (what the M means, what the F means, etc) is defined in Honda HES A3010-05.
Unfortunately, as best I can tell, the "-C" just means "colored chromate" and doesn't indicate clear or yellow.
- Cleveland, Ohio, USA
Hi John. Thanks so much for giving us those Honda specification numbers! This should greatly help out the many posters who made reference to codes thinking they were specification numbers.
Luck & Regards,
Ted Mooney, P.E. RET
Striving to live Aloha
finishing.com - Pine Beach, New Jersey
Q. I'm working in a plating shop in Bekasi, Indonesia. I have a question from my customer about the meaning of the number "2" in symbols MFZn-1S-2. Would you please find the answer or tell me where I can find the answer. Thank You.
Cintadi P. Liauw2007
Plating shop - Bekasi, Jawa Barat, Indonesia
A. Hello Cintadi.
It has the sound of a code in Japanese specs for zinc plating plus chromating on steel. But these are codes defined within the specification and will mean very different things depending on what specification they are found in, just as "Type 2 Anodizing" means one thing in MIL-A-8625 but "Type 2 Anodizing" means something utterly different in AMS-2488
I'd inquire if they are referring to JIS H-8610 and JIS H-8625 or to a specific automaker's spec, or some other spec. Good luck!
Ted Mooney, P.E.
Striving to live Aloha
finishing.com - Pine Beach, New Jersey
Q. I am looking for the details on spec ESP-WS-7620 REV. K with surface treatment MFZn-2S
Thanks,
Fastener Distributor - Lake Zurich, Illinois, USA
2007
A. Hi Angie. I believe that that one might be a Mitsubishi Motors spec for zinc plating on a steel substrate. Good luck!
Regards,
Ted Mooney, P.E.
Striving to live Aloha
finishing.com - Pine Beach, New Jersey
Q. Hi I am Karthik. I am entirely new to plating, so could you help me in describing the following plating specification?
MFZn1c -- what does this means?
- Chennai, India
May 2, 2012
A. MFZn1-C means:
MFZn: Zinc plating on base is Steel
1: Means 5 micron Min. plating thickness
C: Yellow color
Engineer - Taiwan
April 18, 2022
Ed. note: Possibly, assuming it's on a Honda drawing :-)
Q. What does this mean?
MFZnNi2-B
- Pakistan, Karachi
February 14, 2013
A. Hi Muhammad.
It has the ring of a Honda spec, so if you have no reason to believe otherwise, please contact Honda for the spec. You can't offer plating to a spec. without having the spec. in hand, so finding out what the acronyms stand for isn't the answer anyway. Good luck!
Regards,
Ted Mooney, P.E.
Striving to live Aloha
finishing.com - Pine Beach, New Jersey
Q. Hi, Ted Mooney
Yes, it is Honda Spec.
MFZnNi2-B
This is Zinc alloy plating (Ni is 6 ~ 10%)
Thickness is 8 Microns min and Bright in colour
Please explain in detail.
Thanks
- Karachi, Pakistan
A. Hi cousin. Sorry, but we seem to be having language difficulties. You already said it's a Honda spec. for Zn-Ni plating with 6-10% nickel, a minimum of 8 microns in thickness, and bright in color. Courtesy of John Tak's posting, the Honda spec numbers may be HES D2003-05 and HES A3010-05. If you're asking for the spec to be put on line or emailed to you, sorry, no one is allowed to do that except your Honda buyer; the spec clearly states on every page:
Sorry but you must contact your Honda buyer for these specs. Good luck!
Regards,
Ted Mooney, P.E.
Striving to live Aloha
finishing.com - Pine Beach, New Jersey
Q. Hi,
I would like to know about "MFZn-5TC" surface coating. If anyone has the answer please let me know.
Thanks
- Indore, India
May 16, 2013
Q. Dear sir,
Please tell me about mfzn5-c for JIS SPECIFICATION. AND APPLICATION THEN FEATURES.
- Chennai, India
August 30, 2013
Q. Good afternoon,
I am from South Africa and have never encountered this specification before: MF Zn Ni T2-C
Could you assist please?
Technical Service Analyst - South Africa
November 21, 2013
Q. Can I ask what is the meaning of this plating code MFZn 8 Cr3 (the no. "8" and "Cr3")? Thanks in advance.
Enelia Puma- Sta. Rosa Laguna, Philippines
May 22, 2014
A. Hi Puma ,
'MFZn8Cr3' means:
Zn - Zinc plating
8 - Thickness 8 microns
Cr3 - Trivalent Chromate Passivation
Regards,
Process Engineer - Tumkur , Karnataka , India.
Ed. note: Possibly :-)
Q. I have this spec Plating MFZn8-a3-Cr, and need you to tell me about this. Thanks.
Jose Torres- Ramos Arizpe Coahuila Mexico
August 14, 2014
Ed. note: That is not a spec, Ramos, it is a code within a spec. You need to tell us what spec, not vice versa :-)
Q. SIR,
Please explain JIS H-8610 MF Zn1-cb.
Thank you,
METAL FINISHERS - Chennai-Tamil Nadu, India
June 9, 2015
Q. Sir what is MFZn8-3.CF?
Donald MagosMetal Fabrication - City of Bacoor, Cavite, Philippines
June 26, 2015
Q. I have a print for a part made from P20 (Fin Guide). Dual language print is in English and Chinese and calls out for a surface treatment of MFNiIII or MF Ni III. Does anyone have a guess as to what this may be?
Jeff Hanawayplating shop owner - Meadville, Pennsylvania
August 5, 2015
Japanese coating specification MZNFE8-TB meaning?
Q. Please let me know the specification that describes and the meaning of the Japanese coating specification MZNFE8-TB. Please let me know where to find this Japanese material coating specification for MZNFE8-TB.
Dennis LeeEngineer - Wylie, Texas, USA
August 31, 2015
Q. MFZN-2S
Thickness = ?
part automotive - Ayuthaya, Thailand
June 21, 2016
My guess is either that there's a typo there and what you wrote doesn't specify a thickness; or that it's a Honda spec. where the 2 means class 2 and 8 microns. But please don't guess :-)
Regards,
Ted Mooney, P.E. RET
Striving to live Aloha
finishing.com - Pine Beach, New Jersey
Q. I received drawings from Japan with treatment MFZnh-C
Reading the forum I discovered that C means Yellow, and Zn means Zinc coating but what does "h" mean?
Or [maybe it's] MFZnII-C - what does "II" mean?
Thank you in advance
Product designer - Sao Paulo, Brazil
June 27, 2016
We've moved on from guessing what finish might be implied by a code within an unspecified specification to conjecturing what requirement might have been underneath a smudge :-)
C'mon folks, misunderstanding is the #1 cause of financial loss in business; you can't proceed without clarification from your customer.
Regards,
Ted Mooney, P.E. RET
Striving to live Aloha
finishing.com - Pine Beach, New Jersey
Difference between MFZn2C and PFZn8C
Q. What is the difference between MFZn2C and PFZn8C? Is there a difference is the plating specifications?
John Bryant- Opelika, Alabama US
June 16, 2017
A. I work within the Honda organisation and have access to the specs.
I can confirm that MFZn2-C translates as:-
Electroplate, ferrous, Zinc, plating grade 2, Coloured chromate.
Honda - Swindon, England
Q. What is standard for plating of MFZn8-K ?
I need what are the materials deposited in this plating & their percentage.
- Pune, Maharashtra, India
January 18, 2018
Q. Dear sir,
We are Honda supplier and we got a surface treatment for one metal part MFZn.Ni1-B+TB3801
Sir can I get this specification?
Regards
- PUNE, Maharashtra, India
March 6, 2018
A. Shripad,
If it's a Honda specification, the best place to get it would be from Honda themselves.
Ray Kremer
Stellar Solutions, Inc.
McHenry, Illinois
Q. Hi Sir,
What does it mean "finish-zinc plate to MFZn8S", especially MFZn8S? It is required from General Motors.
- Shanghai, China
July 6, 2018
Q. I want to know the specifications or detail meaning of plating code MFzn8S
kuwad Mahavir Amarchand- Pune Maharashtra India
June 10, 2022
Q. Hi, I am sukhwinder, I found the plating specification of MFZn 8 (Colour Cluster). Please help me.
sukhwinder- Rohtak, Haryana, India
October 20, 2018
Q. SIR, WHAT IS MF ZN 5C?
PRANAV DESHPANDEAUTOMOBILE PROTO TYPE SECTOR - SIPCOT Industrial Park,
August 5, 2019
Q. Please enlighten us with PFZn5c...
colour , plating thickness
September 15, 2020
- Delhi, India
Q. What is the Meaning of MFZn8C-NH, I have received one drawing from Japan & plating grade is mentioned MFZn8C-NH
Can anyone explain what is actual meaning of "NH"
- GURUGRAM India.
May 14, 2021
A. Kanhaiya,
Maybe you've gotten the idea from the replies to the older similar questions below, but the best thing to do in a situation like this is go back to the CUSTOMER, ask what spec or standard the plating grade comes from, if they can give you a copy of that spec or standard, and if not where you can get it from.
A proper drawing should have the relevant spec or standard listed right on there.
Ray Kremer
Stellar Solutions, Inc.
McHenry, Illinois
Q. According to Honda's coating specifications, what is the code MFCu and how about its colour?
Santhosh gautham- Chennai, tamilnadu, India
July 9, 2021
Q. Hello, Good day!
I'm still confused with plating Zn
My Company only have drawing with material & plating MFZnIII and my customer drawing is MFZn2-B, MFZn5-B and MFZn8-CF, is the plating same or not?
Can do you explain to me about that?
Thank You So Much.
Best Regards,
- Cikande, Indonesia
August 31, 2021
A. Hi Muhammad. No, they are not the same.
Thank you for writing in American english, but I think we're having language difficulties, because people have repeatedly tried to make the same two points.
1. Codes like "AAA", "ED", "SAD", and "MFZnIII" mean nothing at all out of context. "III" could mean "trivalent chromate", it could mean "level III inspection", it could mean "for type III (severe) exposure
2. Offering a price quote on something, let alone trying to supply it, without the specification in hand is a problem.
Luck & Regards,
Ted Mooney, P.E. RET
Striving to live Aloha
finishing.com - Pine Beach, New Jersey
Q. what meaning of MFZn8-CF
prashant kamble- aurangabad
March 24, 2023
Q. I want to know the specifications or detail meaning of plating code MFzn8-CF
RITESH SADAWARTESTUDENT - AURANGABAD, MAHARASHTRA, INDIA
March 25, 2023
Tip: Readers want to learn from your situation,
often just skipping abstract questions.
HHS:0201 WHAT ABOUT MINIMUM REQUIRED PLATING THICKNESS
DHARAM VEEREMPLOYEES - HARIDWAR/UTTRAKHAND
May 22, 2023
Q. What does it mean, coating EP- FE/ZN8/HB/CM2Y
s udhayakumarEmployee - chennai
August 19, 2023
Q. What is the meaning of MFZn2-E ?
Quality Assurance - Bekasi, jabar , Indonesia
October 18, 2023
Ed. note: Please see thread 35197 for another long list of guesses about similar sounding plating codes.
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