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Refinishing engine covers - Powder coating?

The paint finish on the generator cover on my Z1000SX is in a progressive serious decline - probably my fault for expecting the finish to ...

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    Really Bored burty's Avatar
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    Default Refinishing engine covers - Powder coating?

    The paint finish on the generator cover on my Z1000SX is in a progressive serious decline - probably my fault for expecting the finish to last for two years in all weather use.

    Currently it's a black paint finish on that alloy stuff that most bike manufacturers use. I was going to repaint from a rattle can either 'normal' paint or an engine specific paint like Sperex or whatever is currently favoured, and I know I can get a decent finish this way, but am not sure how well it will last. But also considered having it powder coated, as I thought this might last better (as it is fairly exposed and the current finish started to deteriorate once it picked up a stone chip), but I am not sure if this is a good idea.

    So has anyone got a recommendation for either a suitable paint or powder coat? And perhaps recommendations for powder coaters within North Kent or South London?
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    Default Re: Refinishing engine covers - Powder coating?

    Don't powder coat them, the powder coating will end up on the gasket face and then they won't seal.
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    Default Re: Refinishing engine covers - Powder coating?

    Quote Originally Posted by Julian_Boolean View Post
    Don't powder coat them, the powder coating will end up on the gasket face and then they won't seal.
    I was expecting a powder coater to know what they were doing and to avoid that.

    Come to think of it. Last time I had some wheels painted by a company with a good reputation I was sorely disappointed with the finish so maybe I shouldn't expect any professional to know what they are doing.
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    Default Re: Refinishing engine covers - Powder coating?

    Plenty of High Temp paints out there, probably easier than leaving the component with a powdercoater for a week or two and the hassle of getting them to block the rear face and threads.
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    Default Re: Refinishing engine covers - Powder coating?

    nitromors, wet dry, it's all about prepping the surface. No need for high temp. Not sure if I used an etch primer before the can? I think ive done that but you can get plenty of "straight to bare metal" rattle cans. gloss is much easier to wipe down and within a month or two the glosss will have faded back in any case (no pun)
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    Default Re: Refinishing engine covers - Powder coating?

    Quote Originally Posted by Alex Dangerfield View Post
    No need for high temp
    Yep true , its only a generator cover.
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    Default Re: Refinishing engine covers - Powder coating?

    I get on well with plastikote. Goes on very easily and it's acrylic so kind of soft even when dried and doesn't chip too badly. Also it's very cheap and doesn't really need a primer so more saved.

    Powder would be good but you'll need to have the part off the bike for as long as they need. You can whip it off for paint and back on in an afternoon. You'll need a new gasket. As above it is worth going back to bare metal and nitromors will make light work of the job.
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    Default Re: Refinishing engine covers - Powder coating?

    Cb-1 years ago


    Cbr900 last week (zoom in)


    The cbr was with some other brand of acrylic spray after twice failing to get anything approaching an acceptable finish using enamel spray paints.

    As far as the gasket face goes there's no problem there just tape it off and drag a sharp blade around the outside. Then turn it over and cut out the holes as you don't want paint pooling there. Then use a piece of paper and tape to block the rest. Not so difficult? If you do get any overspray you can clean it off easy enough with a gasket scraper or the tool for cleaning your glass hob or scraping gloss off glass is basically the same thing. Or just leave it, the new paper gasket will take that up anyway.

    On dadmorti's Kawasaki zx6 from as far back as '98 the side covers are magnesium. If yours is too this might or might not be a problem for acrylic paint, idk, not tried it.
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    Default Re: Refinishing engine covers - Powder coating?

    Quote Originally Posted by Alex Dangerfield View Post
    nitromors, wet dry, it's all about prepping the surface. No need for high temp. Not sure if I used an etch primer before the can? I think ive done that but you can get plenty of "straight to bare metal" rattle cans. gloss is much easier to wipe down and within a month or two the glosss will have faded back in any case (no pun)

    This ^

    Spend time on the preparation. I did the covers on my VFR recently, see here. I have access to a bead blaster at work so prepping was easier but nitromors and wet & dry or wire wool will clean off all the old paint. Etch primer, then topcoat; I used Smoothrite, Plasticote gives good results too. You'll need to ask Mad Ax how the finish is holding up as he's now the owner of said bike.
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