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Powder Coating over Filler

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32 replies to this topic

#1
EvilNeverDies

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For powdercoating does the case need to be charged electrically?
i.e. does it need to be conductive?
I'm filling in an aluminium case with a filler that contains aluminium but I'm not sure if it'll maintain conductivity
I may test it with a multimeter tomorrow but is it required?

#2
Bentleya

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For powdercoating does the case need to be charged electrically?
i.e. does it need to be conductive?
I'm filling in an aluminium case with a filler that contains aluminium but I'm not sure if it'll maintain conductivity
I may test it with a multimeter tomorrow but is it required?


You can't powder coat over filler, if you powder coating brushed aluminum the powder fill's the brush marks :).

You will have a big mess on your hands if you try filling your case first then getting it powder coated :(

#3
EvilNeverDies

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but I can't fill it after as it won't match?
unless I mix and match spray paint and powdercoat?

#4
Bentleya

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Best bet is to mix and match, what are you trying to fill?

#5
EvilNeverDies

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the front on/off buttons, the front grill, the top watercooling holes
its a lian li v2010b
a dragon is going to be cnc into the front over the filled grill

#6
tinytomlogan

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Deffo cant powder filler. Its one or the other matey.


#7
7755matt

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How about something like 'chemical metal' as a filler, surely the conductivity will be there for powder to stick to?

And its weird you can powder coat MDF but not filler (its probably perfectly reasonable the reason just not at 7.30 on a sunday)

#8
EvilNeverDies

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the filler is this:
http://www.halfords....tegoryId_165625
it's got pieces of aluminium in it
I can spray it at home with some spray cans but powdercoating is preferable

#9
tinytomlogan

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Chemical metal will look bad. As the powder will show all the uneveness.

You cant powder over that filler either mate, also when its baked the filler might crack. If you want it to look nice I would NOT mix and match either.

If you want powder just powder over the plate aswell, it will probably look nicer than what you are planning anyways.

IF and only IF filling is an absolute nessecity then it has to be wetsprayed.


#10
EvilNeverDies

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If you want powder just powder over the plate aswell, it will probably look nicer than what you are planning anyways.


ouch
I'm not new to this modding business you know
I'll spray it myself then
tar for the help guys

#11
tinytomlogan

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By that I meant mix and matching paint and powder dude.


#12
EvilNeverDies

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Ahh fair enough
I wasn't planning on mixing anyway it was either one or the other
I take it back then :)
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#13
tinytomlogan

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If you spray it yourself read this guide
http://www.watercool...-article-2s.pdf

bigdave wrote it and if you follow that you should be fine, dont think you can skip anything either, paint is about prep, the more time you put in the better it is.


#14
EvilNeverDies

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Yeah I've sprayed things before, besides I always research before I do anything
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#15
Marcus

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JB Weld seems to be the popular choice for doing filler work prior to powder coating.

More info on it HERE and HERE! :-)

marcus.jpg


#16
tinytomlogan

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Never going to be perfect tho is it :(


#17
EvilNeverDies

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I've decided I'm either going to spray it myself or get a professional to spray it
thanks for the help anyway guys and at least if someone else has this problem it's sorted
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#18
Marcus

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Just doing some thread cleaning, made this into a thread of its own. :)

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#19
Bigdavegrrr

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Only just saw this so probs a little late now but JBweld/Liquid metal does work as filler for powder coating and it does sand well. As long as you use a sanding block and sand it to a smooth even finsh as you would with normal filler itll be fine. With any finishing process its all about the prep.

For filling holes I would use counter sunk rivets to rivet a peice of aluminium behind the hole and use JB weld/liquid metal to skim the rivets and the hole. In any cases where using a filling media there needs to be a mechanical joint to support the filling material which stops it flexing and cracking. In this case the conductive material behind the JBweld/Liqud Metal will help the adherance of the powder too.

Edited by Bigdavegrrr, 21 March 2009 - 02:39 PM.


#20
EvilNeverDies

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Yes it's too late >.<
see here for the filling:
http://www.watercool...read.php?t=6844
feels damn strong (and I know it's sand paper proof :P) takes all my strength to snap a small portion off (used an angle grinder form some of the large peaks!)
I'm gonna spray it myself (had a bit of experience spraying cases so should come out ok)
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