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Author Topic: Clear coat for alloy hubs .. Bike painting in general  (Read 1417 times)

Offline AshimotoK0

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Clear coat for alloy hubs .. Bike painting in general
« on: July 29, 2023, 11:08:25 PM »
A few of my bikes I polished the wheel hubs and left it at that. However, on my 750K0 a few years back I followed MarkB on the Sandcast Only forum's advice and cleaned the hubs thoroughly with acetone and clear coated with Eastwood 1k Diamond clear but I was not over impressed with the finish. I came to conclusion that Vic World was correct that ideally you need a chromate conversion process on the alloy surface ( e.g. Alodine 1000 series) to make the clear coat adhere properly but ...this is nasty stuff and virtually impossible for the DIYer to obtain in the UK.
Last year my mate spotted somebody selling a 2l kit of 2k Mipa clear coat for £10 at Rufforth Autojumble .. the cheeky bugger offered the seller £5 for it on my behalf and he reluctantly sold it to me.
Anyway, I checked it out and it's what car alloy wheel guys use to clear coat and is described as 'suitable for direct application  to alloy'.I tried some out last weekend  on a pair of 400F hubs and pretty impressed. Its called Mipa CA with HS10 hardener. Goes on really well ...I cleaned the semi-polished surface with thinners then pure acetone.
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« Last Edit: August 25, 2023, 08:30:11 PM by AshimotoK0 »
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Offline JamesH

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Re: Clear coat for alloy hubs
« Reply #1 on: July 29, 2023, 11:19:40 PM »
Lovely finish ash


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Offline Laverdaroo

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Re: Clear coat for alloy hubs
« Reply #2 on: July 30, 2023, 12:08:58 AM »
That looks well Ash. Top job


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Offline Oddjob

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Re: Clear coat for alloy hubs
« Reply #3 on: July 30, 2023, 01:43:03 AM »
What sort of finish was on the alloy before Ash? Just clean or mirror polished etc
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Offline AshimotoK0

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Re: Clear coat for alloy hubs
« Reply #4 on: July 30, 2023, 07:49:22 AM »
Quote from: Oddjob on July 30, 2023, 01:43:03 AM
What sort of finish was on the alloy before Ash? Just clean or mirror polished etc

Polished then knocked back with 1500 grit pad lubricated with pink Jizer to try to get original Honda finish. Tried to match to a NOS Honda part
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“Alright friends, you have seen the heavy groups, now you will see morning maniac music. Believe me, yeah. It’s a new dawn.” Grace Slick, Woodstock '69 .. In the year of the Sandcast.

Offline Trigger

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Re: Clear coat for alloy hubs
« Reply #5 on: July 30, 2023, 07:52:15 AM »
Nice finish mate.  ;)
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Offline Trigger

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Re: Clear coat for alloy hubs
« Reply #6 on: July 30, 2023, 08:13:10 AM »
I just looked in my polishing diary and i got it down to 600 with a satin mop and the lacquer didn't run. Did try a 1320 grit once with a satin mop but, the lacquer started to run mate. But, it is a close call with how thick you can spray the lacquer through the gun without making a total mess of things  ;)  So 1500 wet and dry is a good call mate.
« Last Edit: July 30, 2023, 09:44:14 AM by Trigger »
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Offline Matt_Harrington

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Re: Clear coat for alloy hubs
« Reply #7 on: July 30, 2023, 10:28:33 AM »
Mipa paints are good. I often used their 2k black and its v.easy to spray. Never tried the clear coat but might have a go at some stage.
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Offline AshimotoK0

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Re: Clear coat for alloy hubs
« Reply #8 on: July 30, 2023, 11:21:09 AM »
It's all a matter of choice really.. as I said some  of my bikes are left just polished alloy .... but  I personally don't like the highly polished look unless it's on a special, chopper etc. Some love it though. The main exercise here was to try to get clear to stick to alloy without using some nasty unobtanium chemical. Having said that the isocyanate in the 2k clear is pretty nasty stuff too.

Going to try the Mipa HX 2k clear on my C110 paintwork this week sometime. I will report back.
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“Alright friends, you have seen the heavy groups, now you will see morning maniac music. Believe me, yeah. It’s a new dawn.” Grace Slick, Woodstock '69 .. In the year of the Sandcast.

Offline Sesman

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Re: Clear coat for alloy hubs
« Reply #9 on: July 30, 2023, 11:44:29 AM »
Nice finish that Ash….where were you when I rebuilt the 550 F wheels😁. If my vapour blast and ACF50 finish begins to suffer, I’ll definitely rebuild using your suggestion as the finish is exactly what I was seeking at the time.👍
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Offline Jan B

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Re: Clear coat for alloy hubs
« Reply #10 on: August 23, 2023, 02:23:14 PM »
How many coats of clear did you apply?

And "pink Jizer"....Found green Jizer and pink Swarfega... but no pink Jizer.
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Offline Laverdaroo

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Re: Clear coat for alloy hubs
« Reply #11 on: August 23, 2023, 02:24:10 PM »
Jizer is only green and not pink


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Mornings are the invention of the devil!

1977 CB550F (current money pit!!)
2002 VFR800 VTEC (The Beloved)
1977 CB400F (the last money pit!)
1998 Ducati 748\853 conversion(sold :()
1980 ish CB750KZ in a billion bits (need to get rid, anybody want one?))

Offline AshimotoK0

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Re: Clear coat for alloy hubs
« Reply #12 on: August 23, 2023, 06:22:40 PM »
Quote from: Laverdaroo on August 23, 2023, 02:24:10 PM
Jizer is only green and not pink


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Its Jizer and its deffo PINK  ;) Well the liquid is ..tin is green though.
Two coats ..tack coat then one thicker coat.

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« Last Edit: August 23, 2023, 06:27:21 PM by AshimotoK0 »
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“Alright friends, you have seen the heavy groups, now you will see morning maniac music. Believe me, yeah. It’s a new dawn.” Grace Slick, Woodstock '69 .. In the year of the Sandcast.

Offline Laverdaroo

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Re: Clear coat for alloy hubs
« Reply #13 on: August 23, 2023, 06:32:14 PM »
Nope never seen it, every tub bottle I’ve bought has been green inside and out.

I don’t but it anymore as it’s lost it’s potency since all the good stuff was taken out of it.



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Mornings are the invention of the devil!

1977 CB550F (current money pit!!)
2002 VFR800 VTEC (The Beloved)
1977 CB400F (the last money pit!)
1998 Ducati 748\853 conversion(sold :()
1980 ish CB750KZ in a billion bits (need to get rid, anybody want one?))

Offline AshimotoK0

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Re: Clear coat for alloy hubs
« Reply #14 on: August 23, 2023, 08:54:21 PM »
Quote from: Laverdaroo on August 23, 2023, 06:32:14 PM
Nope never seen it, every tub bottle I’ve bought has been green inside and out.

I don’t but it anymore as it’s lost it’s potency since all the good stuff was taken out of it.



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I agree its sh@te now but it's great as a degreasing lubricant for alloy cleaning.

See datasheet below its red.

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« Last Edit: August 23, 2023, 09:24:56 PM by AshimotoK0 »
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“Alright friends, you have seen the heavy groups, now you will see morning maniac music. Believe me, yeah. It’s a new dawn.” Grace Slick, Woodstock '69 .. In the year of the Sandcast.
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