Author Topic: Powder coated brake plate  (Read 1382 times)

Offline gold33

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Powder coated brake plate
« on: 16.02. 2010 23:28 »
G'day to all,

Just going through my job list and noticed an issue I haven't addressed.
My front brake plate and drum have been powder coated! I'm guessing this will provide me with plenty of early brake fade. *eek*

Is this the major problem I think it is?

How do I get powder coat off easily?
Darren
'52 Plunger

Online RichardL

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Re: Powder coated brake plate
« Reply #1 on: 17.02. 2010 05:42 »
Assuming the powder coating is not on the inside surfaces, I fail to see/understand why it would cause brake fading. Nevertheless, if you want it off, I thought sand blasting is the preferred method, but apparently the info below is what you need.

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Richard L.

Offline Josh Cox

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Re: Powder coated brake plate
« Reply #2 on: 17.02. 2010 11:20 »
Gold33,

Are you talking about the inside of the drum, i.e. the wear face ?, if so it must come off, I had same problem and used a wire wheel, knowing what I know now I'd find someone with a lathe and machine it off.
Black 1953 Golden Flash Plunger

Offline gold33

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Re: Powder coated brake plate
« Reply #3 on: 17.02. 2010 11:28 »
Thanks,

Just remember the fireplace chats over a beer or three regarding the painting of brake drums on our daily driver turned weekend race cars.
So far braking has been the least of my problems, just wanted to make sure it stayed that way.

I am pulling the wheels off for a tyre change next week and will check how far the powder coating has gone. On my inaugural ride the brakes were poor to say the least
Darren
'52 Plunger

Offline BSA_54A10

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Re: Powder coated brake plate
« Reply #4 on: 17.02. 2010 12:36 »
Yes, the powder coating has a higher R rating than the standard thickness of enamel paint.
And no I seriously doubt that it will make a noticeable difference.
Bike Beesa
Trevor

Offline Desburnett

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Re: Powder coated brake plate
« Reply #5 on: 17.02. 2010 12:45 »
I have the same problem (removing powder coat) from a fully enclosed chain guard.

Apparently Nitromores will work but takes ages, can be helped allong by wrapping in cling film after Nitromores is applied. Sand blasting can be time consuming depending on the blast media. A 80 grit silicon wont touch the parts I have. Heating to above 1200 degC will work but the oven that my beloved adores will only reach 300 degC.
Some of the commercial chemicals sound a bit dodgy but the professionals use :

http://www.cirrus-systems.co.uk/index.php/Industrial-and-Civil-Engineering.html?gclid=CJjR27qz-Z8CFYqD3godxG0uXA#dip_tank

Des

Online bsa-bill

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Re: Powder coated brake plate
« Reply #6 on: 17.02. 2010 18:27 »
Gasket remover works very well - Don't ask

All the best - Bill
All the best - Bill
1961 Flash - stock, reliable, steady, fantastic for shopping
1959 Rocket Gold Flash - blinged and tarted up  would have seizure if taken to  Tesco

Offline beezalex

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Re: Powder coated brake plate
« Reply #7 on: 17.02. 2010 19:09 »
Aircraft stripper will remove polyester powdercoat (most quality powder is Polyester).  So, anything that will remove most fiberglass (Polyester) resin will also remove powder.  There are some powders out there that are epoxy, but they should never be applied to motorcycles - hopefully the coater knew that.

So, why do you want to remove it from the drum?  I understand you probably want the brake plate in gleaming alloy again.

And no, you're not going to get any more fade from a powdercoated drum.
Alex

Too many BSA's


Offline MikeN

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Re: Powder coated brake plate
« Reply #8 on: 17.02. 2010 20:19 »
I always powdercoat my wheel hubs. Ive had many done over the years. You know that you arent going to chip it off when you poke the spokes through.
However,If you do wish to remove it, i always use a propane torch until it starts to bubble and char,then wire brush and it comes of easily.
Mike

Offline BSA_54A10

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Re: Powder coated brake plate
« Reply #9 on: 20.02. 2010 12:47 »
Brake drums cam be boiled in a 20% caustic soda solutiion.
If you lasserate the powder coating it will come off a lot quicker.
Same method works well on barrels and other bulky items that are not likely to distort.

And high quality powders are viterious enamel that chemically combine with the activated oxide surface of the item to be coated.

Every thing else is just an encasing envelope of varying strength.
Bike Beesa
Trevor