Filling small pitting in metal / prep - The 1947 - Present Chevrolet & GMC Truck Message Board Network

'70 C/10 SS500 · 12-17-2003, 01:22 PM

I have a used valve cover that was pretty nasty when I got it. I sand blasted it hoping it would clean up pretty good. For the most part it did but there is some medium pitting on one side that I'd like to fill before I paint it so that it will have a relatively smooth finish. Is there any EASY to apply fillers or glaze (I really know next to nothing when it comes to this stuff) or something else that perferably doesn't need a hardener that I can use to fill this pitting? I've had very frustrating results with PPG acrylic filler, I can never really get it to harden, it's always soft and doesn't sand worth a sh@t, it gums up the paper! Any help would be appreciated!

dkooi · 12-17-2003, 01:27 PM

POR-15 makes a variety of products that might work out for you. Try going to their web site and read up on the various products they offer.

**StingRay** · 12-17-2003, 01:42 PM

You could use any variety of automotive primers but the thermal cylcling around the valve cover would probably eventually knock off most things you would use. Epoxy primer is a good bet for survivability but it is not really a primer filler and does not sand well at all. I would try a thin coat of JB weld or my favorite Loctite Weld. Let it harden and then sand smooth. You could also try any other kind of epoxy or metal filled epoxy as a filler.

*Randy70C-10* · 12-17-2003, 02:14 PM

As long as they are clean, regular sand and fill primer should work fine. I've used it to fill in the rough casting on water pumps and other parts.

tom hand · 12-17-2003, 03:24 PM

I would just use the high temp motor paint that you are going to paint it with. Put on a good coat...let it dry...sand it off. Repeat until the pits are filled, then paint the whole valve cover

'70 C/10 SS500 · 12-17-2003, 05:40 PM

Yeah, I guess I'll just put on many coats of paint, sanding between, and call it good. I was just wondering if there was a faster, easier way.

*Gee_Emm* · 12-17-2003, 08:37 PM

por-15 makes stuff called por patch, I tried it out and it is pretty awesome, rock hard and pliable

12-17-2003, 01:22 PM	#1
'70 C/10 SS500 Registered User Join Date: Jun 2003 Location: Chandler, AZ Posts: 130	Filling small pitting in metal / prep I have a used valve cover that was pretty nasty when I got it. I sand blasted it hoping it would clean up pretty good. For the most part it did but there is some medium pitting on one side that I'd like to fill before I paint it so that it will have a relatively smooth finish. Is there any EASY to apply fillers or glaze (I really know next to nothing when it comes to this stuff) or something else that perferably doesn't need a hardener that I can use to fill this pitting? I've had very frustrating results with PPG acrylic filler, I can never really get it to harden, it's always soft and doesn't sand worth a sh@t, it gums up the paper! Any help would be appreciated! Attached Images

12-17-2003, 01:42 PM	#3
StingRay Senior Member Join Date: Mar 2000 Location: Saskatoon,SK,Canada Posts: 2,482	You could use any variety of automotive primers but the thermal cylcling around the valve cover would probably eventually knock off most things you would use. Epoxy primer is a good bet for survivability but it is not really a primer filler and does not sand well at all. I would try a thin coat of JB weld or my favorite Loctite Weld. Let it harden and then sand smooth. You could also try any other kind of epoxy or metal filled epoxy as a filler. __________________ Saskatoon, Saskatchewan Canada

12-17-2003, 03:24 PM	#5
tom hand CCRider Join Date: Feb 2000 Location: Olive Branch,MS,USA Posts: 2,232	I would just use the high temp motor paint that you are going to paint it with. Put on a good coat...let it dry...sand it off. Repeat until the pits are filled, then paint the whole valve cover __________________ 72 GMC Sierra SWB almost finished---- 84 Softail Olive Branch MS

12-17-2003, 05:40 PM	#6
'70 C/10 SS500 Registered User Join Date: Jun 2003 Location: Chandler, AZ Posts: 130	Many coats, lots of sanding Yeah, I guess I'll just put on many coats of paint, sanding between, and call it good. I was just wondering if there was a faster, easier way.

12-17-2003, 01:27 PM	#2
dkooi Registered User Join Date: Jan 2003 Location: Mesa, AZ Posts: 175	POR-15 makes a variety of products that might work out for you. Try going to their web site and read up on the various products they offer.

12-17-2003, 02:14 PM	#4
Randy70C-10 Account Suspended Join Date: Mar 2001 Location: Virginia Beach, Va. U.S.A. Posts: 15,320	As long as they are clean, regular sand and fill primer should work fine. I've used it to fill in the rough casting on water pumps and other parts.

12-17-2003, 08:37 PM	#7
Gee_Emm Account Suspended Join Date: Sep 2000 Posts: 3,991	por-15 makes stuff called por patch, I tried it out and it is pretty awesome, rock hard and pliable



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