Powdercoat wheels

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mike202

mike202

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I was looking at my wheels and thinking that they are not actually that bad and maybe just need a paint touch up on chips in the powdercoat. Having taken them off the bus I realise that they are not powdercoated on the inside ? Is this normal, or was this just a bit of cost saving by PO.
Don’t ask me why I have only just realised this after 8 years of ownership [emoji23]
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Bit of a half arsed job by someone. Get the tyres off and get them blasted & fully redone by someone reputable, you’ll be glad you did 8)
 
Not that it really makes any difference to the outcome, but are they definitely powder coated, or has the PO just spray painted the face to freshen them up? It seems like it’d be more effort to only powder coat half a wheel than to do the entire thing?!


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Thanks guys for the replies. I will get the wheels done by the firm that did my bumpers. [emoji1690]

I assumed they are powdercoated at the mo, but only because it’s quite thick coating but I could be wrong and it could be paint. How do you tell the difference?
 
There’s probably a more hard and fast rule, but powder coated is basically a plastic so it will mark if you poke your nail into it. Paint tends to be a bit harder!


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Yeah they were painted I reckon. I’ve taken them to the powdercoaters today along with some other bits, so looking forward to seeing them gleaming white. [emoji3]


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mike202 said:
Yeah they were painted I reckon. I’ve taken them to the powdercoaters today along with some other bits, so looking forward to seeing them gleaming white. [emoji3]


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When you get them back, don’t forget to clean the powder coating off the wheels surface where the nuts / bolts make contact with the wheel. Mainly because the wheels will get a little warm under braking then the plastic softens then your nuts ain’t tight no more and worse case scenario is your wheels fall off which isn’t most peeps favourite :shock:
While on the subject, what about where the back of the rim contacts the drum? If you look on any steelies, there ain’t a lot of paint on there either. :msn4: :shock: :msn4:

Ozziedog,,,,,,,, food for thought praps :mrgreen:
 
ozziedog said:
mike202 said:
Yeah they were painted I reckon. I’ve taken them to the powdercoaters today along with some other bits, so looking forward to seeing them gleaming white. [emoji3]


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Click to expand...


When you get them back, don’t forget to clean the powder coating off the wheels surface where the nuts / bolts make contact with the wheel. Mainly because the wheels will get a little warm under braking then the plastic softens then your nuts ain’t tight no more and worse case scenario is your wheels fall off which isn’t most peeps favourite :shock:
While on the subject, what about where the back of the rim contacts the drum? If you look on any steelies, there ain’t a lot of paint on there either. :msn4: :shock: :msn4:

Ozziedog,,,,,,,, food for thought praps :mrgreen:
Click to expand...


Thanks for the reminder about the wheel bolt holes. I will file the powder coat down carefully. Have read a few threads about people forgetting this, and as you say the wheels coming off!

 
ozziedog said:
mike202 said:
Yeah they were painted I reckon. I’ve taken them to the powdercoaters today along with some other bits, so looking forward to seeing them gleaming white. [emoji3]


Sent from my iPhone using Tapatalk Pro
Click to expand...


When you get them back, don’t forget to clean the powder coating off the wheels surface where the nuts / bolts make contact with the wheel. Mainly because the wheels will get a little warm under braking then the plastic softens then your nuts ain’t tight no more and worse case scenario is your wheels fall off which isn’t most peeps favourite :shock:
While on the subject, what about where the back of the rim contacts the drum? If you look on any steelies, there ain’t a lot of paint on there either. :msn4: :shock: :msn4:

Ozziedog,,,,,,,, food for thought praps :mrgreen:
Click to expand...

Couldn’t agree more with the rear of the wheel where it mates against the drum. I melted the powder coat in this area on a previous set of wheels after a lot of steep hills had been descended. Bear in mind, powder coat is not baked at a particularly high temperature, and brake drums especially will get far hotter on big hills / fully loaded / high speed stops etc.

I recently had the wheels on my daily powder coated by a specialist wheel refurbisher company. Note that I say wheel refurbisher rather than powder coater. They will either paint or powder coat wheels depending on the condition and whether any filler is required for bad curbing. In my case, the wheels were good and they were powder coated. When they do it, they drop large ball bearings into the bolt holes and cover the mating face so that after the coating is complete, these are left as bare metal so that there can be no risk of melting and loosening the wheel.


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Moseley said:
ozziedog said:
mike202 said:
Yeah they were painted I reckon. I’ve taken them to the powdercoaters today along with some other bits, so looking forward to seeing them gleaming white. [emoji3]


Sent from my iPhone using Tapatalk Pro
Click to expand...


When you get them back, don’t forget to clean the powder coating off the wheels surface where the nuts / bolts make contact with the wheel. Mainly because the wheels will get a little warm under braking then the plastic softens then your nuts ain’t tight no more and worse case scenario is your wheels fall off which isn’t most peeps favourite :shock:
While on the subject, what about where the back of the rim contacts the drum? If you look on any steelies, there ain’t a lot of paint on there either. :msn4: :shock: :msn4:

Ozziedog,,,,,,,, food for thought praps :mrgreen:
Click to expand...

Couldn’t agree more with the rear of the wheel where it mates against the drum. I melted the powder coat in this area on a previous set of wheels after a lot of steep hills had been descended. Bear in mind, powder coat is not baked at a particularly high temperature, and brake drums especially will get far hotter on big hills / fully loaded / high speed stops etc.

I recently had the wheels on my daily powder coated by a specialist wheel refurbisher company. Note that I say wheel refurbisher rather than powder coater. They will either paint or powder coat wheels depending on the condition and whether any filler is required for bad curbing. In my case, the wheels were good and they were powder coated. When they do it, they drop large ball bearings into the bolt holes and cover the mating face so that after the coating is complete, these are left as bare metal so that there can be no risk of melting and loosening the wheel.


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Click to expand...

I didn't realise that was an issue, I will look out for that when I fit the wheels. The guy at the powdercoaters was saying 200deg C as the recommended max temp so your wheels must have got very hot!
 
A quick google suggests that it softens at a much lower temperature and melts around 150 degrees C. I don’t think it’d take much for most brakes to get to this temperature.


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Don’t know about a file but I’d just get a strip of coarse ish paper and pop it on a wheel nut or bolt with the correct radius and roughen it up and clean it back a tad, I’d possibly give the coating a little chamfer too. But I’ve advocated this a quite a few occasions but until recently I’d not thought of the back of the wheel getting hot too. Maybe it’s a combination of the two surfaces getting soft that allows the wheel nuts/ bolts the give and freedom to come loose?
Anyone on here that’d got powder coating on their wheels, care to have a look at the backs the next time you got them off to report back maybeeees :mrgreen: And anyone popped their coated wheels off ever and praps thought they was a little looser than when you’d tightened em? :shock: Or anyone notice the coating looking a little melted or discoloured etc or even have their rims glued onto the drums :lol: and felt a little stuck :mrgreen:

Ozziedog,,,,,,, just a bit of food for thought.
 

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