Filler for powdercoating recommendation?

[Sonreir]

Hey all,

I know there are several products that can be used a filler under powdercoating, but does anyone have any recommendations? I've not used any of them before and I'd hate to drop $50 on a substandard option.

Thanks,
Matt

 

[Whitey80]

Lead?

 

[Sonreir]

Just plain old lead solder?

 

[Whitey80]

Was a suggestion that I didn't know if was gonna work, I'm fairly sure it should though, do some research. Not lead solder, plain ol' body filler lead. Pretty much the same thing, but more workable in big bars
Eastwood sells all that old school stuff, the tinning paste and lead by the pound

 

[carnivorous chicken]

JB weld works well and takes the heat. Not sure if lead filler will take the heat to bake it -- I am guessing others will chime in here too.

 

[Sonreir]

You can powder over JB weld? I thought you needed something conductive?

 

[Ricky Racer]

Check out Labmetal. RR

 

[Sonreir]

That's one of the products I was considering. Any experience using it?

 

[carnivorous chicken]

You can powder over JB weld? I thought you needed something conductive?

Yep. Works fine, just gotta finish it smooth (as you would Bondo for painting). A lot of people assume powder coating will cover up small flaws but nope.

 

[o1marc]

JB Weld will work but has a tendency to shrink some. It will look perfectly smooth and then when the coated part comes out of the oven you will see the "asshole". It may take preheating the part to help the powder stick to it. I use a product called Epo Strong from Tiger Drylac. It's bit expensive at around $75, but can be speed cured in 10 minutes and is easily sandable unlike JB or some of the others. Lab Metal will work if you are only going through one heat cycle. Use High Temp Lab metal if you are doing Candies,Metallics or other multicoat applications.
Here are a few "non conductive " parts I have coated:
I have coated some carbon fiber scraps as well as some aquarium rocks (can't find the pics)
A clay pot my daughter made:

A ceramic toilet tank (all colors powder):

My daughter shooting a piece of plywood for a pottery pad:

A cinder block:

 

[Ricky Racer]

Wow! That's WORD! RR

 

[carnivorous chicken]

JB Weld will work but has a tendency to shrink some. It will look perfectly smooth and then when the coated part comes out of the oven you will see the "asshole". It may take preheating the part to help the powder stick to it.

I guessI should add that I never used it to fill any major dings or dents, but just to smooth out very minor imperfections...

 

[o1marc]

None of the fillers should ever be applied more than 1/8" thick. If the dents are deeper find someone with a stud gun and pull the dents out as far as you can before dressing with filler.

 

[JRK5892]

we do alot of body work before powder for customer...

here is how we do dent repairs

after we pull the dent we then block out the primer base

all done

we use the same basic principles for fender fills that we do

here is one we did in gloss

we also can do mulit colors when we do body work not just black