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How to paint new organisol over old organisol
#71797
06/11/08 11:44 PM
06/11/08 11:44 PM
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Anonymous
OP
Unregistered
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Anonymous
OP
Unregistered
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Old organisol was painted in 1993 and it was probably the old lacquer (if thats what you could get from year one back then). New organisol from Totally Auto is enamel.
I know enamel over laquer is very very bad and wont work. What do you put down on top of the laqcuer to make sure the enamel doesnt lift
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Re: How to paint new organisol over old organisol
#71798
06/12/08 12:29 AM
06/12/08 12:29 AM
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Joined: Oct 2006
Posts: 1,264 New York, USA
Chargerfan68
pro stock
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pro stock
Joined: Oct 2006
Posts: 1,264
New York, USA
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What I would suggest is to scuff/wetsand the old organisol good, and then spray one or two coats of Black PPG DP90 epoxy primer over that. Then within one day to one week, spray the new organisol. The reasons why I use the black epoxy are due to the incompatibility issue, and the new organisol (at least the one I used) is not fuel tolerant and will become disrupted with a fuel spill. The black epoxy primer combats against bleeding through to the undercoats and it is the most unoticeable since it is similar in sheen and color. Good luck to you, Greg.
1.50 60Ft. , 10.75@ 127MPH Hauling 3900 LBS.
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Re: How to paint new organisol over old organisol
[Re: Chargerfan68]
#71799
06/12/08 08:14 AM
06/12/08 08:14 AM
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Joined: Apr 2005
Posts: 4,923 new berlin wisconsin
Mr T2U
master
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master
Joined: Apr 2005
Posts: 4,923
new berlin wisconsin
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you can spray enamel paint over lacquer paint without problems. it was done all of the time in the old days. when you spray lacquer over enamel that's when you have lifting problems. spraying DP down first is a good idea. it will help keep the enamel from soaking into the lacquer.
perception is 90% of reality
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Re: How to paint new organisol over old organisol
[Re: Mr T2U]
#71801
06/12/08 01:57 PM
06/12/08 01:57 PM
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Joined: Jan 2003
Posts: 10,030 Wisconsin
Aero426
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 10,030
Wisconsin
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Quote:
you can spray enamel paint over lacquer paint without problems. it was done all of the time in the old days. when you spray lacquer over enamel that's when you have lifting problems. spraying DP down first is a good idea. it will help keep the enamel from soaking into the lacquer.
This is correct.
Problems occur when you spray those "hot" lacquer solvents over enamel. Not the other way around.
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Re: How to paint new organisol over old organisol
[Re: Aero426]
#71802
06/13/08 11:52 AM
06/13/08 11:52 AM
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Joined: Mar 2005
Posts: 1,546 Seattle, WA
375inStroke
Special needs person
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Special needs person
Joined: Mar 2005
Posts: 1,546
Seattle, WA
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Always read the tech sheets. Here's a quote: "When [DP90] is sprayed over lacquer substrates or basecoat that is not crosslinked, and then allowed to set overnight before applying another coat of primer or a topcoat, lifting can occur. This can be avoided by applying the DPLF Epoxy Primer, color and clear coat in the same day or by adding 5% of DX57 RTS DBC." ...and the link: DP90 tech sheet
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Re: How to paint new organisol over old organisol
#71803
06/13/08 12:25 PM
06/13/08 12:25 PM
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Joined: Nov 2003
Posts: 3,060 Western New York
sixpackbee
master
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master
Joined: Nov 2003
Posts: 3,060
Western New York
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What is the reason for doing it? I have saved original organsol that was in not too bad shape. PM me if interested.
1959 Bugeye Sprite 1967 Charger Black L code 1967 Coronet R/T Convert Green 440 auto bought from original owner 1968 Charger R/T Bronze 440 4 spd console AM/FM 1969 Super Bee WM21H B5 A40 D21 N96 1969 Barracuda Formula S 340 Convert pilot car 1969 Hemi Road Runner RM23J D32 Omaha orange 4.10 Dana N96 N85 1970 Super Bee WM23N FE5 V1X 3.91 axle package, N96 1970 Road Runner RM21N B3 V1X D13 1971 MG Midget 1971 Road Runner RM23H GW3, A57 1972 Road Runner RM23P FY1, D21
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