Author Topic: Painting over body filler  (Read 3102 times)

Offline preaction

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Painting over body filler
« on: April 02, 2016, 04:08:04 PM »
I have a product called metal glaze and its a thin (wet) type of scratch filler and after painting over it I found it can still be seen under the paint. Im being told I need to use a sealer before paint is that right and what type of sealer would be used ? The parts Im working on are small brackets and other parts that may have a deep scratch or pitting on them.
8F02R218047-  July 18 1968   Dearborn

Offline jwc66k

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Re: Painting over body filler
« Reply #1 on: April 02, 2016, 05:07:35 PM »
I've used spot putty, sanded the edges when it's dried, a coat of primer as a check, then repeat or apply the final coat of paint.
Jim
I promise to be politically correct in all my posts to keep the BBBB from vociferating.

Offline cobrajetchris

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Re: Painting over body filler
« Reply #2 on: April 03, 2016, 12:22:41 PM »
After applying any type of filler to a part it must be primed or sealed before a topcoat is applied. If the area you are repairing is large I would recommend priming the area well past the feathered edge of the body filler and let it dry and block sand the are down to make everything level. If you are just filling pits in small parts a coat of sealer should be fine.
CHRIS KNOBBE
69 MUSTANG COUPE, DEARBORN BUILT 06/10/69 OWNED SINCE 1978
70 BOSS 302 MUSTANG, DEARBORN BUILT 10/24/69 OWNED SINCE 1987
69 R CODE MACH1 AUTO, DEARBORN BUILT 10/10/68 OWNED SINCE 2006
69 R CODE MACH1 4 SPEED (factory black) SAN JOSE BUILT 12/30/68 OWNED SINCE 2007

Offline preaction

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Re: Painting over body filler
« Reply #3 on: April 03, 2016, 12:35:49 PM »
Im a little new to this when you say sealer what would be an example of one,  can it be in spray can form or needed to be sprayed from a gun.  ;)  Im just filling small imperfections and a few pits here and there does the whole part need to be sealed ?  The current part is a air filter housing.
« Last Edit: April 03, 2016, 12:38:12 PM by preaction »
8F02R218047-  July 18 1968   Dearborn

Offline tomtri66

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Re: Painting over body filler
« Reply #4 on: April 03, 2016, 03:46:34 PM »
PPG DPLF Epoxy Primer mixed according to the data sheet with DT Reducer is an example of an excellent sealer.
MCA# 78748 Adirondack Shelby Mustang Club
66 Metuchen HT Sprint 200 Package B
6T07T194XXX   65A       Y       22     20A     ?        2       6
                    BODY  COLOR  TRIM  DATE  DSO  AXLE  TRANS
C/O    762
4        A20     6T07T194XXX
65A       Y        22

Offline cobrajetchris

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Re: Painting over body filler
« Reply #5 on: April 04, 2016, 09:53:57 AM »
 Im just filling small imperfections and a few pits here and there does the whole part need to be sealed ?  The current part is a air filter housing.

A spray gun will always bring better results than a spray can in most cases however with small parts a spray can will work fine. If you have all the paint stripped off and the part is in bare metal you will need to use an etch primer over the bare metal for corrosion purposes then a primer or sealer over that. Sealer is more less a very thinned down version of primer. If you are using a spray can on the air cleaner I would buy a primer filler as this will help fill minor imperfections and when sanded down will give a good base for the paint to stick to. It's hard to cover everything to make it clear if you are not familiar with auto painting however there are many good books and videos out there. I would also recommend  going to an auto paint store vs. an auto parts store to buy your products. Tell them what you are doing and they will help you out. good luck!
CHRIS KNOBBE
69 MUSTANG COUPE, DEARBORN BUILT 06/10/69 OWNED SINCE 1978
70 BOSS 302 MUSTANG, DEARBORN BUILT 10/24/69 OWNED SINCE 1987
69 R CODE MACH1 AUTO, DEARBORN BUILT 10/10/68 OWNED SINCE 2006
69 R CODE MACH1 4 SPEED (factory black) SAN JOSE BUILT 12/30/68 OWNED SINCE 2007

1967 eight barrel

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Re: Painting over body filler
« Reply #6 on: April 15, 2016, 11:22:51 PM »
DPLF 74 is epoxy primer, not a sealer used pre-paint. After you do all your body work and block, sealer is the final coat. It's similar to your standard primer, but is often tinted based on the color coat. My Shelby's sealer was white because of the blue. If you need assistance, once again I can probably get a friend to donate enough for your scratches.


                                                                                                         -Keith

Offline jtfx6552

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Re: Painting over body filler
« Reply #7 on: June 02, 2016, 07:41:39 PM »
DPLF 74 is epoxy primer, not a sealer used pre-paint. After you do all your body work and block, sealer is the final coat. It's similar to your standard primer, but is often tinted based on the color coat. My Shelby's sealer was white because of the blue. If you need assistance, once again I can probably get a friend to donate enough for your scratches.


                                                                                                         -Keith

https://ppgrefinish-na.uberflip.com/i/462316-ppg-custom-restoration-guide/45
1965 Mustang Fastback, October 29, 1964 Dearborn Build, In the family since new.

Offline bgp429

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Re: Painting over body filler
« Reply #8 on: June 02, 2016, 09:37:30 PM »
Under features DP is listed as sealer or primer. It is a very good product. Be sure to read and understand the directions completely.


http://www.myrv14.com/buildlog/20160510/p-196_dplf_epoxy_primer-9-13.pdf

Offline tomtri66

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MCA# 78748 Adirondack Shelby Mustang Club
66 Metuchen HT Sprint 200 Package B
6T07T194XXX   65A       Y       22     20A     ?        2       6
                    BODY  COLOR  TRIM  DATE  DSO  AXLE  TRANS
C/O    762
4        A20     6T07T194XXX
65A       Y        22