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Mizuno JPX900 Hot Metal Irons Corrosion

Mon Feb 12, 2018 11:13 am

Posted by NoK3


I’ve just purchased a new set of JPX900 Hot Metal Irons and after one round, one round!! There’s rust spots developing on the PW. One day, one round, but what I expected. This can’t be normal!!???

Last edited by NoK3 on Mon Feb 19, 2018 2:54 pm, edited 1 time in total.

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Re: Mizuno JPX900 Hot Metal Irons

Tue Feb 13, 2018 3:47 pm

Posted by MPX


No - that's not normal.  Possibly some very strong chemicals on the fairway?

But please return these to your retailer and they'll be in touch with us.
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Re: Mizuno JPX900 Hot Metal Irons

Sun Feb 18, 2018 5:38 pm

Posted by NoK3


Hi, the affected club is now with Mizuno for assessment however I now have a second club (9I) showing the same condition. This second club was on the second round of golf and was noted within two hours of finishing a round. I’m to touch with my seller. 
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Re: Mizuno JPX900 Hot Metal Irons

Mon Feb 19, 2018 11:49 am

Posted by NoK3


I have to say that my first ever (and probably my last) purchase has resulted in a very poor level of customer service. Mizuno have advised that the corrosion is not under warranty and that this is a result of the lack of care. I cannot agree with this comment as these clubs were brand new and used for the first time on Sunday 11th Feb and cleaned after the round then lubricated with light oil. So, corrosion occurred after one round and the clubs cleaned as quick as was humanly possible but then still corroded. The same occurred on the 9 iron this week, played and clubs and cleaned during the round and finished and finally cleaned and lubricated within 1 hr of getting home. Again more corrosion. This strikes me that there’s an issue with the irons that either Mizuno know about but won’t admit or genuinely feel the clubs hacve been abused. Either way the warranty does not apply. Not sure what to do other than not to play in the wet, clean the irons and keep them tucked up in bed at a nice room temperature. Very disappointed in both the level of customer service and the fact that the items aren’t of a required quality to withstand normal use. I had fellow golfers interested in purchasing the same but this experience has now put them off Mizuno product. Certainly did not have these issues with Ping and the level of after care needed/suggested. Dissatisfied and disappointed !!!! 
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Re: Mizuno JPX900 Hot Metal Irons

Mon Feb 19, 2018 1:20 pm

Posted by Halebopp


That sounds very odd. Having owned 7 sets of forged irons by Mizuno over the years, I've never encountered the issue, all of them have been used. The only clubs I've had corrosion showing have been some wedges that have been hit thousands of times wearing out the protective coating.

Why are you adding oil? Doesn't that make a huge mess of things, especially when you need to remove it before a round? A good cleaning and drying with a towel is all you need. Do you use iron head covers?

My suggestion is you check what oil you are using and I'm willing to bet your problem lies right there. I'd simply stop applying it.
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Re: Mizuno JPX900 Hot Metal Irons Corrosion

Mon Feb 19, 2018 2:56 pm

Posted by NoK3


These were corroded before a lubricant was added. The corrosion occurred between playing and cleaning. 
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Re: Mizuno JPX900 Hot Metal Irons Corrosion

Mon Feb 19, 2018 3:00 pm

Posted by NoK3


In fact the first club a PW was straight out of the box. I round, corrosion before I could clean it. This is something to do with the steel grade being used. It has been said that they are not as resistant as other steel grades. Let’s not get confused with the oil. That’s an instruction with the clubs for care. 
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Local club/country: Stoneleigh Deer Park Golf Club
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Re: Mizuno JPX900 Hot Metal Irons Corrosion

Mon Feb 19, 2018 4:18 pm

Posted by NoK3


I’ve attached the maintenance instructions for reference. Clearly states the use of lubrication oil. The instructions have been followed to the letter but corrosion not avoided. 
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Local club/country: Stoneleigh Deer Park Golf Club
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Re: Mizuno JPX900 Hot Metal Irons Corrosion

Mon Feb 19, 2018 4:24 pm

Posted by NoK3


Image added
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Local club/country: Stoneleigh Deer Park Golf Club
Irons: JPX900
Driver: Ping G

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Re: Mizuno JPX900 Hot Metal Irons Corrosion

Mon Feb 19, 2018 4:38 pm

Posted by NoK3


The 9 iron corrosion after 2 rounds
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Local club/country: Stoneleigh Deer Park Golf Club
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