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Need Help!!!
I'm primed my oil pan and other small parts and I can see the filler puddy I used to fill in all pits and small dings. I talked to Eastwood Company and they told me to use Epoxy Primer, which I did. It didn't work. I used a sealer primer from Napa on other parts and it also didn't work. Should I just sand blast everything and use a high build primer to fill in pits?
What can I do and use???

Depends on how deep your pits are? You could try a sandable primer and put a few coats on and sand or try a high build primer. Did you blast prior primer? Or wire brush? Maybe sand your filler better? You could try skim coating with a product called Icing from NAPA. I don't know how it works with motor temperatures or heat but is great on bodywork. Another product called Lab Metal may work. Hard to tell without seeing. Maybe posting a picture would help. Good luck and have fun
Dan

what was the last grit paper you used.maybe it wasnt fine enough........dave

the color variation of filler vs bare metal will be visible thru epoxy, but by the time you've done the primer and color, it won't be .... epoxy primer is the ultimate "sealer" .... but I can't imagine doing all those stages of body work and paint on an oil pan

Bill

I wet sanded it with 600, cleaned it and used the Epoxy Primer.
Should I sandblast it off and start over using high build primer or should I sand it and then use high build primer?

I guess my question would be what do you mean by "see it"? Do you mean the texture of the filled area is different? Do you mean you can see the edge of the filler around the filled area? Do you mean the primer didn't stick and you can see the actual filler? All are different problems with different fixes.

Well I guess Ill have to say this ..filler putty on an a sheetmetal engine component like a oil pan ..WILL IT SURVIVE the expansion and contraction that will come with the oil pan getting pretty heated up and then cooling down ???.
I've never used any filler on a pc. like this.
For fear of it coming back out and blistering??
I might be off on this.
just a thought.
Tim

I can see the outline of the filler puddy under the primer.
Do you think I could sand it and then use a high build primer?
Or should I try to prime it again with the same primer?

carry on with the body work, epoxy primer is not a finish coat, it's a sealer - you will not see the putty by the time you have the top coat done .... until the paint lets go from heat and oil saturation

Bill

Bill,
Your saying when I put my finish coat on I wont see the outline of the puddy?

It sounds like you have not sanded (and feathered) the filler. Either sand it down; or, rough it up and add more filler, extending beyond the work/repair area - then sand it down. A high-build primer should then fill pin-holes and other imperfections. You will then have to sand again.

I did sand it before I put the Epoxy Primer on. Then, I could see the outer line of the filler puddy.
Sould I sand it and spray more Epoxy Primer on or should I use something else?

Exactly what I thought, what level of perfection are you trying to achieve with this much attention on an oil pan?

Just sand it down till you see high spots showing through the primer. Add a second or third coat of primer, sand it till the high spots are smaller and just keep going till you have it all smooth or till you are tired of messing with it. A first coat of primer, of any type, will let filler show through. Filler has a lot of micro holes in it so it will take a fair amount of paint to fill and hide. Joe

I have painted it before all this work and it looked like someone took a screwdriver to it and marked it up.
I used the filler and primer on it hoping it would look better, but it looks the same. I'm hoping a few coats of primer makes it look better.
By the way all this work is for a show truck. I am picky when it comes to this truck.

If you want to have a show truck, you should consider buying a few good books on body work and painting.

Also, you might want to see if any local community colleges have any courses in bodywork and painting.

What was the process that you used, did you sand the complete pan with course paper before adding filler. Then sand it all down with progressively finner grits. I always spray my primer after sanding with 220 and spay 2 heavy coats. When this is dry you can follow with a very light mist coat of black. Block sand with 320. This will show any high or low spots. Then you can either fill with spot putty or more primer depending on condition that you find.

As a side note.....body filler puts up with the temperature of the sun beating down on a black paint job. That creates higher temps than your oil. If your prep work is good you won't have a problem.

I sanded the pan that had new paint, cleaned and added the filler. Sanded with course paper, then with 220. Wet sanded, cleaned and sprayed the primer. I'm planning on sanding it this wknd and spraying more primer down. Hope it covers.
Thanks to all that posted.

I haven't checked this thread for a while. What you describe can be eliminated by using what they call high build primer these days. In my day it was primer surfacer. As noted above, after shooting a heavy coat & letting it dry, block sand the area until the high spots show. Add more primer & a light dusting of a contrasting color spray paint to use as a guide coat. When you can block sand the guide coat off without exposing the high spots, your filler will not show through.

Thanks for the info. I plan on working on it this weekend.
Let you know what happened.
Thanks.

I would find a different oil pan

I finished the oil pan. I sanded it with 320 than 220, primed it again. It looks like new.
Thanks

Most oil pans I have seen have marks like that- they are stretch marks from the stamping dies. Glad you got it cleaned up.