Just sprayed door in epoxy

One door down, then on to fnishing the rest of the car, priming and painting lol this is my first attempt at spraying any panel for a car

 

Sweet. Good luck. Interested in seeing the post paint finishing.

 

You have bigger stones than I have where paint is involved.

 

It may be a little while before i post pics of the rest of the car because i have to do a lot of body work and weld some patch panels in. Thanks guys! I will post more pics when i get each section done!

 

I was amazed at how well the SPI epoxy laid out. I used it on suspension parts and it came out slick.

 

It was very easy to spray for my first spray suprisingly. It was easy to mix it 1:1, and I couldnt believe it sprayed and laid as well as it did. Im a little nervous about spraying color down the road though

 

And u have chosen the most difficult colour to spray - black...

 

That's just the epoxy,... its black

 

Congrats! looks great!
If the epoxy calls for a 30 minute induction/wait time before spraying, do it!
One of my co-corkers explained to me... he's a materials engineer that worked on space hardware and really knows his stuff.
The epoxy catalyst needs 30 or so minutes to react with the 'part A' paint. Reason being the catalyst will also react with CO2 in the atmosphere if it is sprayed too soon. Therefore it needs the induction time (before spraying) for part A to react with part B.... otherwise the part B will react with CO2 in the air BEFORE it gets to react with the part A. Result could be a gooey mess that won't harden. Conditions will vary induction time.... temperature and humidity. Better to be safe than be sorry.

 

It's best too allow induction,..but I often dont maybe 10 to 15min at best and it performs as it should,...while it's best I wouldn't loose sleep over it or sit there and watch the clock, you can also put in the sun for a few min to speed up the process

 

Ditto. Epoxy should sit 15 -45 min after stirred good. Or it may fish eye. Hope you are putting Primer surfacer on top of epoxy. (3-4) coats then board off. 220 grit.

 

Looks Good

 

Thanks guys! Well eventually the car will be black... so i definitely have my work cut out for me, i let the epoxy induce atleast 30 mins before i sprayed. What i ended up doing was mixed it 1:1 but in a smaller quantity (using ppg measuring stick in the garage from when the car was painted the first time) stirred it really good and let it induce. I had just enough to spray 1 coat. So i could mix more and let it induce while the first coat flashed over, for about 30 40 mins. I let epoxy induce 30 mins both times and stirred it again before i put it in the gun. I got lucky because after 3 days of downpour rain the humidity came down to 49% so i could spray it while i had the chance. Im doing the body work on the door right now, and i will either epoxy over the body work to seal it and then prime over the epoxy or just prime over the body work and not epoxy before i prime it

 

If you let the epoxy cure completely, about 3-5 days, you will need to sand it before any additional coats of anything are applied. It does not sand well, FYI. Best to let it cure for a couple days then hit it with 2k surfacer.

 

I thought epoxy (PPG) was 2:1. Please tell me you miss spelled?

 

The OP is just protecting the blasted metal in preparation of bodywork,...no need to worry about getting anything else on it. Then when ready knock it down go with 120to 180 then go to poly.

Steve the spi is 1:1 ,..Matrix just went to 1:1 formula as well,...ppg DP epoxy is 2 :1

 

Good Deal. Got lil nervous there. To much hardener. OK

 

Yes this is the SPI epoxy, sorry i shouldve said that in earlier post haha im finishing up blocking body work down tomorrow then i can spray over it this week. Whats the "poly" short for?

 

I use polyester primer to lock down the bodywork then go to then 2k urethane primer,.."Slick Sand" made by evercoat

 

Oh okay, later this week i will probably be able to spray those