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Author Topic: Powdercoat questions  (Read 681 times)

theurbanlegend

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Powdercoat questions
« on: Dec 17, 2012, 08:03:18 PM »
I've been thinking about powdercoating the brake and clutch master cylinders.Of course,they would be completely stripped of all rubber parts before anything gets done.What has me worried is the little sight glass on the side of both casings.

Do they come off? It looks like they are pressed in with a rubber seal (my Virago was like that).
If they can't be removed without damaging them,can they withstand the 400* heat for a good hour?

Has anyone had their masters powdercoated?Any input would be appreciated.
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towguy500

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Re: Powdercoat questions
« Reply #1 on: Dec 17, 2012, 08:52:22 PM »
I have alot of parts powdercoated, but not those.  I would be more worried about the sandblaster breaking the sight glass before the heat.  I would like to see how it turns out though.  Good luck.

BK

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Re: Powdercoat questions
« Reply #2 on: Dec 17, 2012, 09:11:51 PM »
I've been thinking about powdercoating the brake and clutch master cylinders.Of course,they would be completely stripped of all rubber parts before anything gets done.What has me worried is the little sight glass on the side of both casings.

Do they come off? It looks like they are pressed in with a rubber seal (my Virago was like that).
If they can't be removed without damaging them,can they withstand the 400* heat for a good hour?

Has anyone had their masters powdercoated?Any input would be appreciated.

If the raider master cylinder has an o-ring like my Honda did, I don't think the o-ring would withstand the heat. I had my master cylinder off my old Honda chromed so I had to pop out the sight glass. I made up a tool to pop it out using a nut and bolt. I ground the face of the bolt flat and ground the sides round to the diameter of the sight glass. The bolt has to be able to fit in the master cylinder then you back the nut off to force the bolt into the sight glass to pop it out. Be warned I have read where others have tried this and broke there sight glass. Here are a couple of pictures.

Almost forgot. When I pressed the sight glass back in I put a thin coat of clear silicone on the sight glass and o-ring. 
« Last Edit: Dec 17, 2012, 09:14:03 PM by BMK »
    

Ares X

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Re: Powdercoat questions
« Reply #3 on: Dec 17, 2012, 09:45:00 PM »
BMK- Very innovative!

Chance13

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Re: Powdercoat questions
« Reply #4 on: Dec 18, 2012, 04:57:07 AM »
Good thinking


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theurbanlegend

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Re: Powdercoat questions
« Reply #5 on: Dec 18, 2012, 06:20:53 AM »
BMK thank you for the idea.I'm just worried about about possible damage and leaking later on.
But it seems like the safest thing to do is to remove the glass.
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Ares X

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Re: Powdercoat questions
« Reply #6 on: Dec 18, 2012, 09:34:14 AM »
BMK thank you for the idea.I'm just worried about about possible damage and leaking later on.
But it seems like the safest thing to do is to remove the glass.

Safest thing to do is not powdercoat it.

Why are you powdercoating anyway?  What color do you want it?

theurbanlegend

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Re: Powdercoat questions
« Reply #7 on: Dec 18, 2012, 06:56:45 PM »
Actually I want to polish it and then powdercoat it clear.
I polished the master on my Virago many many years ago and then I just clear coated it.But the clear never lasted very long and I had to re-polish and respray every so often.The sight glass on that master looked like it had been chemically damaged by a previous owner,so I just popped it out and replaced it with a polished carriage bolt and rubber o ring.But I would prefer keeping the Raider's sight glass intact.

I'm surprised to see that nobody here has had their master cylinders powdercoated.I thought for sure there would be at least one member.Guess I'll have to try it and see what happens.It's part of my winter mods list so I have time to figure something out if anything goes wrong.I'm just trying to stack all the odds in my favor.
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digitizer1

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Re: Powdercoat questions
« Reply #8 on: Dec 19, 2012, 12:20:51 AM »
If you are going to polish it and then clear coat it (I am giving away a trade secret here) buy a
product made by Glisten PC, it is called POR15 and it is a clear coat that is hammer tested and
won't chip off or wear off. It can even be applied with a brush and will dry out very smooth
and unseen and won't yellow, and actually water cures it even harder ........
Hope this helps, I have the christmas spirit I guess, Cheers, Bruce

P.S you can google it for info ......
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digitizer1

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Re: Powdercoat questions
« Reply #9 on: Dec 19, 2012, 12:22:31 AM »
Oh one more thing , it runs about $70.00 a pint here in Canada
at a body shop supply store ....Cheers
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digitizer1

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Re: Powdercoat questions
« Reply #10 on: Dec 19, 2012, 12:27:31 AM »
Ah, here is a link to the product:

http://www.por15.com/GLISTEN-PC/productinfo/GPCGG/
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theurbanlegend

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Re: Powdercoat questions
« Reply #11 on: Dec 19, 2012, 06:20:40 AM »
Thanks digitizer.I remember hearing about POR15 about 20 years ago,but I completely forgot it existed.
But since I already have the powdercoat material...I'll see.Nothing is set in stone at this moment.
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BK

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Re: Powdercoat questions
« Reply #12 on: Dec 19, 2012, 08:46:45 AM »
BMK thank you for the idea.I'm just worried about about possible damage and leaking later on.
But it seems like the safest thing to do is to remove the glass.

As long as it does not get damaged when you are taking it out it should not leak after it is re installed. I did my Honda about 10 years ago, I still have that bike and to this day no leaks. Like I said I put a thin layer of silicone on it just to be sure it would not leak. When I was doing the research back then I did find a guy who broke his, he found a internet site that sold the glass face replacements for watches. He told me that he ordered on as close to the same size as the sight glass and siliconed it in and it worked.