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Old July 16th, 2017, 07:44 AM   #1
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Default Filler for powdercoating

Got a few pitted parts that I want to fill/ smooth then powdercoat. Any suggestions on a filler that will hold up to powdercoating?
Jeff
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Old July 16th, 2017, 08:02 AM   #2
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Default Re: Filler for powdercoating

Lab Metal, or All Metal.
IIRC.
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Old July 16th, 2017, 08:02 AM   #3
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Default Re: Filler for powdercoating

Some people claim JB Weld works too.
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Old July 16th, 2017, 08:15 AM   #4
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Default Re: Filler for powdercoating

Thank Ian!
Heard about using jb but some say it only is good for low temps. I'll check the stuff out you listed.
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Old July 16th, 2017, 08:48 AM   #5
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Default Re: Filler for powdercoating

Regular powdercoat cures around 400F.
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Old July 16th, 2017, 09:05 AM   #6
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Default Re: Filler for powdercoating

Being a resident powder coater... I can tell you the easiest thing to do is to fill with the JB Weld with high temp capabilities for availability... but it is not the best filler... it's just the easiest for folks to obtain, and you can do your own fillers that way before taking it to a coater... but most coaters won't want to deal with someone elses filler work, so I don't recommend it unless the coater is a friend of yours and can walk you through the situation... from your question, I'm not betting on you having a friend in it...

The Absolute best product for filling for powder coating, is made by a Powder manufacturer. The Product is built by Tiger Drylac and is called *EPOSTRONG.

You can call the closest distributor by going to their website and finding the right number and order directly from the manufacturer. The sales people who answer the phone don't usually know the product if you ask for it... most people don't know it exists... but stay after them and ask for tech support or something if they can't figure it out... it's just a weird disconnect in their system that makes it less than normal to acquire. Here's the kit number

TIGER Drylac Series 93/70080 Epo-Strong Repair Kit

The stuff mixes and applies kinda like Bondo, so it won't throw you for a loop, but you do have to let it cure for 2-3 days, or force air dry at 140 degrees for 2 hours... either will work for the product.

Here's the data/application sheet (don't worry about it being to technical... you just need to make sure the part you are applying it to is VERY VERY clean, Acetone will do the job. Acetone will also screw up any existing powder coatings so be careful of it around powder coated stuff... but a substrate of bare metal it is as good as it gets for removing all greases and waxes from your parts)
EPOSTRONG
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Old July 16th, 2017, 09:11 AM   #7
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Default Re: Filler for powdercoating

TIGER Drylac U.S.A., Inc. (HQ's)
IL 60174 St. Charles
3855 Swenson Ave.
USA
Phone 800-243-8148
Fax 877-926-8148
Email customerservice.us(at)tiger-coatings.us
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Old July 16th, 2017, 09:18 AM   #8
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Default Re: Filler for powdercoating

If you use JB weld... This stuff

Jb Weld


DO NOT USE KWIK WELD or any other stuff they make, the rest are not up to the temps... well... most of them. I think the Metal reinforced stuff may be... But doesn't work well for a normal pit filler... I use the putty stuff only if I have large gouges that need to be filled. I also use a product called QuickSteel that is a 2 part putty... Autozone usually carries that as well.

I recommend Blasting the surface clean with medium grit (80 grit or larger) blast media in a Siphon cabinet at 60 psi or less. The idea is just like Bondo as well... give it some "tooth" to hold onto.
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Old July 16th, 2017, 09:23 AM   #9
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Default Re: Filler for powdercoating

If you look into Lab Metal... there is a normal, and a high temp version... The high temp stuff is *OK* as I have seen, but have heard many complain about it.

Also note: If you are coating with a metallic, or Flake type powder you may see "stains" of the filler under your powder. Especially if light colored coating is used. The flake in the metallics seem to stand up over the repair material giving a stain appearance. The coating is fine, just looks odd in that case. If using an opaque coating (Black or grey or red... a solid color with no flake)... you will likely have a hard time finding the pitting if done well. But again... I wouldn't want someone to bring me a part that's already been filled and smoothed, as I can't guarantee the outcome at all...

What kind of parts are you trying to repair and refinish?
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Old July 16th, 2017, 09:49 AM   #10
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Default Re: Filler for powdercoating

Thanks Scott!
A lot to soak in there. It's for a set of Porsche 356B pedals I just ordered. (Got a great deal on them so not a lot of money. If you guys saw what I bought the other day, the money tree took a huge shake and I don't know how long it will take to recover! ) I'll need to get them media blasted first to see what I'm dealing with and then go from there. They do look pretty pitted though.
Jeff
P.S. Have used kwik weld. Not a huge fan as it's pretty gritty and harder to mix. Held up on the gas tank I used it on though.
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Old July 16th, 2017, 09:49 AM   #11
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Default Re: Filler for powdercoating

Quote:
Originally Posted by SCOTTRODS View Post
TIGER Drylac U.S.A., Inc. (HQ's)
IL 60174 St. Charles
3855 Swenson Ave.
USA
Phone 800-243-8148
Fax 877-926-8148
Email customerservice.us(at)tiger-coatings.us
They are about 40 minutes from us!
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Old July 16th, 2017, 03:49 PM   #12
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Default Re: Filler for powdercoating

Are Porsche Pedals a lot different than VW pedal assemblies? Just curious? I thought they'd be close to you as well... but wasn't sure you'd maintained the same local (Some of us forget to change our profiles...) They're easy to do business with... but the filler isn't free... so maybe working on that Money tree growing back is more importanter... Never know...
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Old July 16th, 2017, 04:25 PM   #13
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Default Re: Filler for powdercoating

It's a "down the road" project, but I like staying ahead of the game if I can.
The pedals are out of a 356b. I'll post a pic later.
Jeff

Last edited by JiI; July 16th, 2017 at 04:37 PM.
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Old July 16th, 2017, 06:04 PM   #14
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Default Re: Filler for powdercoating

Here is an exploded view
http://www.pelicanparts.com/356/356B...l_assy_big.JPG

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Old July 19th, 2017, 10:00 PM   #15
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Default Re: Filler for powdercoating

I seen this a little late, but I was going to say we use All Metal. I will say it is a BITCH to work with though
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