How do you prep for paint? Link to PPG Tech Sheets

[Veloce]

Thought i would post this link up as this site has all the PPG paint and primer tech sheets for their products. The site also has stuff for 3M, K&H and others...

 

http://www.amcap.com.au/default_amcap.aspx?menuid=1035

 

I'm in no way affiliated with PPG but i have used their products before and they are good quality.

 

The tech sheets are good because it shows you how to prep a car properly for paint.

 

I have decided to do this with my 240z (bare metal) for anyone that cares...

 

Complete the obvious metalwork and temporarily prime these areas until a full paint strip can be done.

 

After repairs, mechanically strip car to bare metal (DA sander, wire wheels, flap disc etc)

 

Sand bare metal with 180 grit and treat metal with Deoxidine 624 and rinse / dry.

 

Prime whole car with PPG Epoxy Urethane Primer 410-48248

 

Smooth panels and repairs with polyester filler on top of epoxy primer.

 

Spray another coat of Epoxy primer over entire car after filler work complete.

 

Flash off for 25 mins and spray entire car in PPG 2K HS Primer Filler (high build).

 

Wet sand as required 180, 320, 600 then top coat. 

 

If anyone has a better way of doing this, im all ears. I want a really high quality paintjob!

 

 

 

 

[zzzzed]

we use ppg at work and thats pretty much how we do it at work when doing a full resto respray

[Sirpent]

Similar to the prep tutorial I wrote.

 

Only thing I would suggest is that washing panels down with Dioxidine may be a bit risky with Epoxy as it is an acid based prep wash similar to etch primer and Epoxy's dont like acid based primers.

 

http://www.viczcar.com/forum/index.php/topic,6306.0.html

 

Cheers

 

John

[Veloce]

Dont know how i missed that thread, good read.

 

I'm a bit unsure as well on the deoxodine but the PPG tech sheet says to use it but it is very specific about how to rinse it and how long it should sit before its coated etc.

 

Will start a thread when i get going on the bodywork.

[Sirpent]

Thanks Buddy,

 

I would strongly suggest staying away from the Dioxidine, if you read up on epoxy primers you will not that they love clean bare metal, basically all it is is a form of sprayable body filler, same composition and as with body fillers they dont react well to acid based substrates.

 

I used to use dioxidine back in the 80's when doing acrylic resprays and have never used it under any 2Pac process, if you do use it, as soon as the moisture content of the wash has dried off you will notice that the metal takes on a multi colored hue this is the effect of the acid content having taken effect on the surface, you must not introduce any further moisture to the surface thereafter i.e. touching the surface with a bare hand for instance.

 

The sooner you apply material over it at that point the better.

 

It's your call, but to be honest no one does this treatment any longer in modern shops, if you prep the panels properly, all you need to do it give them a good prepsol clean before the material application in the case of epoxy and it will be fine.

 

Cheers

 

John