superstar nanos paint issue

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chez_m356
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Re: superstar nanos paint issue

Postby chez_m356 » Fri Oct 12, 2012 00:25 am

it doesn't matter what colour they are, your pedals should be worn, scratched and covered in mud, and who can see them when your on the bike anyway ? :)
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The Rookie
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Re: superstar nanos paint issue

Postby The Rookie » Fri Oct 12, 2012 05:05 am

Paint would wear and scratch for sure, it shouldn't come off in flakes, so I do suspect a preperation/primer issue, sounds like you're getting the normal level of Superstar customer service (which is very good) anyway. My daughter has painted Diamnondback pedals (in pink!) and where the paint on that has worn away it's to a white primer base, no metal showing other than at distinct scratches.

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Clank
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Re: superstar nanos paint issue

Postby Clank » Tue Oct 16, 2012 06:57 am

jimmy182 wrote:
Davie mac wrote:powder coating should be better unless they havent heated them corectly for the powder coating to adhere properly.


This.

Powder coating is far superior to painting when and where friction comes in to play and as a rule more expensive than painting for the exact same reason.


You've been mislead, I'm afraid.

Here's some details, gleaned from about 15,000 hrs of aggressive part testing in a related industries, which should give a better picture.

There is very little chemical adhesion between polyester powder and metal substrates. What you mostly have is a microscopic interlock beteen the plastic and the metal surfaces. Now, I don't know if you've seen metal surfaces under a microscope but there is little in the way of surface roughness. Either way, the powder grips the metal. A slight knock can (and will) dislodge the plastic from the metal surface (without breaking the plastic, so it still looks good, givng the impression that it's doing it's job), causing micocavities between the plastic and the metal where moisture will form. Add to this that the palstics are often hydroscopic and more moisture can react with the surface. This moisute leads to corrosion, which lifts further plastic and the problem just runs away with itself. It's a plastic coating - there is no repair strategy apart from blast off and start again, by which time, the underlying substrate is usually significantly damaged. Aluminium can still suffer too, and there is even less grab between the plastic and the metal in these cases.

Primers used in paint form a chemical bond (or should do) with the metal surface - the two combine so one shouldn't be able to lift away from the other. without taking some of the metal with it. The paint then (or should) bond with the primer. Two layers, chemically attached to each other and to the underlying surface. If done right it can have better wear properties than just powder coat, and better impact performance too. This is why the paint is still on my car, when the powder coating has long since flaked off in sheets.

It is the speed of the powder coat process which industry likes, because that process speed makes it a lower cost alternative. If you get someone to quote for respraying a bare bike frame, then get a quote for getting it powder coated, you'll notice the difference. However, a lot of industry also realises that paint is a superior finish and will use is despite the time/cost disadvantage. That, and you can paint bigger parts (oilrigs etc).

If you want further evidence - talk to anyone involved in exterior finishes in the auto OEMs (not accessories, they're generally pretty clueless). Anyone involved in metal finishes in the aero industy will tell you the same. Same with petro-chem; bike building; yellow goods (JCB are happy to talk about such things), white goods. You'll get the same answer as the one I've just given.

It could be argued that the exception to this is if the plastic coating is based on true adhesive chemistries - epoxy for instance. These give a very, very tough surface (but at serious cost penalty), but this is NOT a powder coating process - it's a paint process.

Hope that helps.
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mudsucker
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Re: superstar nanos paint issue

Postby mudsucker » Tue Oct 16, 2012 08:55 am

i have the Nano techs in gunmetal and due to the nature of this sport doesn't matter what make of pedals they are they are going to get wet, muddy, sandy, bashed on roots and rocks and worn by your shoes. Mine are absolutly battered but i don't care as they are amazing pedals, much better than the DMR V12 mags i had before which were also rather beaten up after a while.

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SuperstarComponents.com
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Re: superstar nanos paint issue

Postby SuperstarComponents.com » Tue Oct 16, 2012 11:35 am

Hello im personally not a fan of painted parts but unfortunately its impossible to anodise white. The market demands the colour so we have to do it, same with chrome finish.

As im sure you would get the standard reply if you have emailed us. We would have said that paint will scratch, chip and wear and this is to be expected as part of wear and tear BUT if your not happy please return them for a warranty inspection.

We dont have a blanket policy, everything is done on a case by case basis. But we need to see it in person to make that descision. Generally we ask people to choose an anodised finish, as pedals get the most stick of any part on a bike and it will just keep happening if replaced with the same. Anodised is the most durable finish.

If you have any questions please let me know, Neil (Superstar)

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Cat With No Tail
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Re: superstar nanos paint issue

Postby Cat With No Tail » Tue Oct 16, 2012 15:26 pm

Another good response from SS.

Me, I'd have just said "fkoff, you bought white painted pedals, wtf do you expect you jibbering ape!"

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nicklouse
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Re: superstar nanos paint issue

Postby nicklouse » Tue Oct 16, 2012 15:30 pm

Clank wrote:Blah

he knows his stuff you know :wink:
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leaflite
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Re: superstar nanos paint issue

Postby leaflite » Tue Oct 16, 2012 18:52 pm

SuperstarComponents.com wrote:Hello im personally not a fan of painted parts but unfortunately its impossible to anodise white. The market demands the colour so we have to do it, same with chrome finish.

As im sure you would get the standard reply if you have emailed us. We would have said that paint will scratch, chip and wear and this is to be expected as part of wear and tear BUT if your not happy please return them for a warranty inspection.

We dont have a blanket policy, everything is done on a case by case basis. But we need to see it in person to make that descision. Generally we ask people to choose an anodised finish, as pedals get the most stick of any part on a bike and it will just keep happening if replaced with the same. Anodised is the most durable finish.

If you have any questions please let me know, Neil (Superstar)



Thats interesting-Ive found the chrome finish on my nanos to be very durable!

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felix.london
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Re: superstar nanos paint issue

Postby felix.london » Tue Oct 16, 2012 21:01 pm

SuperstarComponents.com wrote:Generally we ask people to choose an anodised finish


Which are the colours with anodized finishes?
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Cat With No Tail
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Re: superstar nanos paint issue

Postby Cat With No Tail » Tue Oct 16, 2012 21:11 pm

felix.london wrote:
SuperstarComponents.com wrote:Generally we ask people to choose an anodised finish


Which are the colours with anodized finishes?


Everything apart from White and chrome on the nanos I believe.

Mags are a different animal though.

RyanCTJ
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Re: superstar nanos paint issue

Postby RyanCTJ » Thu Oct 18, 2012 01:33 am

I've had the paint flaking off my white Superstar Nanos after a couple of good rides recently too. It doesn't bother me at all, the pedals are superb. Will just get them in another colour next time.


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