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Author Topic: Powdercoating questions.  (Read 439 times)

Offline canyoncarver

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Powdercoating questions.
« on: Nov 09, 2017, 13:21:27 »
I've been calling around getting estimates on powder coating my YZF750 mag wheels.   The last place I talked to won't do them because of their insurance liability.  They say there is too much risk in possibly changing the temper of the alloy.   He tells me the OEM's use infrared to bake the powder.  No other shop I spoke to mentioned this. 

Thoughts?

--
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Offline SONIC.

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Re: Powdercoating questions.
« Reply #1 on: Nov 09, 2017, 13:56:42 »
I've powdercoated several aluminum wheels and am not dead.
I think they are being a bit overcautious.

To make 6061 into 6061-T6 you have to heat it to 1000 degrees for an hour, quench it, then heat it again to 400 for another hour or so.

I don't think 20 minutes in the powder oven at 350 is going to change the alloy matrix.

I have however been wrong before

Offline Maritime

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Re: Powdercoating questions.
« Reply #2 on: Nov 09, 2017, 14:36:48 »
When you say Mag wheels are you using that as the slang for aluminum alloy or are they truly magnesium alloy wheels? That would make a difference as magnesium alloy is lighter but way more temperature sensitive. I have had alloy Honda wheels powdered without any issues so if they aren't really Magnesium the guy was full of shit.
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Offline canyoncarver

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Re: Powdercoating questions.
« Reply #3 on: Nov 09, 2017, 14:57:48 »
When you say Mag wheels are you using that as the slang for aluminum alloy or are they truly magnesium alloy wheels? That would make a difference as magnesium alloy is lighter but way more temperature sensitive. I have had alloy Honda wheels powdered without any issues so if they aren't really Magnesium the guy was full of shit.

Good point.  Alloy, not Magnesium. 
--
YZF750/1000R The Fly
KZ 750 Twin
ZRX 1100
The Shovelhead springer chopper
A bunch of KZ's...some Suzukis', and a disassembled CB550
--


Offline Hurco550

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Re: Powdercoating questions.
« Reply #5 on: Nov 09, 2017, 15:13:34 »
Good point.  Alloy, not Magnesium.

Are you sure they aren't titanialuminaferralloy?
Keep er' Between The Ditches!!!

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Offline canyoncarver

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Re: Powdercoating questions.
« Reply #6 on: Nov 09, 2017, 15:26:28 »
Are you sure they aren't titanialuminaferralloy?

If so, can YOU weld them?
--
YZF750/1000R The Fly
KZ 750 Twin
ZRX 1100
The Shovelhead springer chopper
A bunch of KZ's...some Suzukis', and a disassembled CB550
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Offline Hurco550

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Re: Powdercoating questions.
« Reply #7 on: Nov 09, 2017, 15:27:59 »
If so, can YOU weld them?

Sure can.

Weld er thick and grind er slick.

Keep er' Between The Ditches!!!

1976 BMW R90/6 farkilitious: http://www.dotheton.com/forum/index.php?topic=74349.msg882477#msg882477
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1976 GT250 Rebuild: http://www.dotheton.com/forum/index.php?topic=64973.new#new
Full Custom Pit Bike: http://www.dotheton.com/forum/index.php?topic=66954.new#new
1971 Yamaha 90cc twin HS1: http://www.dotheton.com/forum/index.php?topic=70498.0
"Two strokes are the motorcycle equivalent to Thors chariot. Full of glory and memories of battles victorious" ~ von yinzer


Offline Hurco550

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Re: Powdercoating questions.
« Reply #9 on: Nov 09, 2017, 15:37:57 »
hacking is learning  ;D

A grinder and paint makes a welder what he aint
Keep er' Between The Ditches!!!

1976 BMW R90/6 farkilitious: http://www.dotheton.com/forum/index.php?topic=74349.msg882477#msg882477
1975 RD350 Road Racer: http://www.dotheton.com/forum/index.php?topic=70652.msg833688#msg833688
1973 Ironhead Hardtail: http://www.dotheton.com/forum/index.php?topic=68135.msg788081#msg788081
1976 GT250 Rebuild: http://www.dotheton.com/forum/index.php?topic=64973.new#new
Full Custom Pit Bike: http://www.dotheton.com/forum/index.php?topic=66954.new#new
1971 Yamaha 90cc twin HS1: http://www.dotheton.com/forum/index.php?topic=70498.0
"Two strokes are the motorcycle equivalent to Thors chariot. Full of glory and memories of battles victorious" ~ von yinzer

Offline The Limey

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Re: Powdercoating questions.
« Reply #10 on: Nov 10, 2017, 19:22:47 »
What about all the other load bearing and structural alloy items that get powder coated?  Why do they only get upset about wheels?

I smell something , and it ain't pig, it ain't sheep, so it must be bull.  Take your hoops elsewhere.
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Offline J-Rod10

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Re: Powdercoating questions.
« Reply #11 on: Nov 10, 2017, 20:17:02 »
If so, can YOU weld them?
That will mess with the temper.

Offline o1marc

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Re: Powdercoating questions.
« Reply #12 on: Nov 11, 2017, 18:11:02 »
It's most common to be at 400 for 10 minutes. But there is no truth to what they told you. Find another coater.
Doesn't matter if it's aluminum or magnesium, the heat during cure will have no effect on the strength of the wheel.
« Last Edit: Nov 11, 2017, 18:13:04 by o1marc »

Offline Cursh

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Re: Powdercoating questions.
« Reply #13 on: Nov 11, 2017, 18:51:31 »
Love me some old shit that don't run right . . .
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Offline beachcomber

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Re: Powdercoating questions.
« Reply #14 on: Nov 11, 2017, 19:22:14 »
I've been calling around getting estimates on powder coating my YZF750 mag wheels.   The last place I talked to won't do them because of their insurance liability.  They say there is too much risk in possibly changing the temper of the alloy.   He tells me the OEM's use infrared to bake the powder.  No other shop I spoke to mentioned this. 

Thoughts?

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Offline Neal~

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Re: Powdercoating questions.
« Reply #15 on: Nov 11, 2017, 19:31:54 »
I have coated hundreds of wheels mine and customer's, Alloys, magnesium whatever, find another coater man.
Roadracing makes heroin addiction seem like a vague wish for something salty.

Offline canyoncarver

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Re: Powdercoating questions.
« Reply #16 on: Nov 11, 2017, 19:33:06 »
This guy

Haha, it's been my sig for years.
--
YZF750/1000R The Fly
KZ 750 Twin
ZRX 1100
The Shovelhead springer chopper
A bunch of KZ's...some Suzukis', and a disassembled CB550
--

Offline canyoncarver

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Re: Powdercoating questions.
« Reply #17 on: Nov 11, 2017, 19:35:58 »
I have coated hundreds of wheels mine and customer's, Alloys, magnesium whatever, find another coater man.

I hear that.  I found two places that are legit and prices are in the same range.  Both have strong reviews online as well.   Both shops do ceramic cerakote coating as well.  I might end up taking a Colt 1911 I have to one of them. 

I thought the temp thing with the one guy I talked to about insurance was bs too.  I had not heard it before so just figured I'd run it up the pole.

I appreciate all the feedback.  I ordered up a yamaha yellow sample from Prismatic.  I'm hoping that's the winner. 
« Last Edit: Nov 11, 2017, 20:02:10 by canyoncarver »
--
YZF750/1000R The Fly
KZ 750 Twin
ZRX 1100
The Shovelhead springer chopper
A bunch of KZ's...some Suzukis', and a disassembled CB550
--