I noticed the primer i'm using to cover bodypannels as I get them done is white krylon... Someone told me this is a bad Idea... My plan is to coat one panel at a time and when complete, respray entire car with primer again before final 400-800grit sanding. Will the krylon be ok if sanded before final primer is applied or should i sand it now and use something else? Please help, Waiting to get back at it......
I wouldn't use it. Your talking spray can primer right? Invest in a $20 gun, and spray each panel with epoxy primer. Its solid as a rock and like $60/gallon with 1.5 gallons sprayable. Youll save money in the long run, and nothing gets through the epoxy primer. Also, depending on what your spraying, as an FYI, enamel doesn't mix well with any paints. If your primer is enamel, plan on stripping it all back off. Its great for lawn furniture. -Jon
Above and Below What metal prep solvents are (or are not) allowed before shooting on the epoxy primer? What types of paint can go over the epoxy primer?
Any degreaser is fine for prepping the panel. It is best to use a wax degreaser from your local shop with plenty of lint free towels. Its like $20/gallon. Dont forget the tack rags. The great thing about epoxy primer is it is compatable with almost everything! When it dries, it is solid! I generally shoot base/clear paints. PPG is my favorite, and I love the DCU2021 clear. Its like glass! -Jon
What brands of degreasers are acceptable? I use Purple Power, but to clean paint OFF of plastic parts. I was planning on applying my body-fillers after putting on the protective priming coat (and then put another primer coat over the filler). Are there filler brands to look for for better compatibility with the epoxy primer?
I'm no body guy, but in the last couple months of working on my ragtop with a "body guy" I've learned alot about bodywork.... One thing I know for sure... I'll never use "spray can" primer for any body work in the future. You don't realize how cheap, thin, and crappy "spray can" primer is until you use some good stuff and a spray gun. We didn't use "epoxy primer", but we used "urethane primer". Not sure what the difference is, (or if there is a difference?) but either way it is WAAAYYY better than any spray can I've ever used!! A gallon of primer and hardener (catalyst?) was around $80-$100?? and my cheapo spray gun was $50. 2 coats of real primer will equal about 20 coats of spray can primer. Seriously. It's more money up front, but I think it might even be cheaper in the end. 1 gallon of urethane primer did my whole car several times. How many rattle cans (at $2-$3-$4 a can) will it take to do the whole car? Cleaning the gun 30 times is much more of a pain in the *** than throwing away empty rattle cans though. ou: :laugh: :beer
I've used epoxy primer and polyester primer. For me I find them hard to sand. I been using Dupicolour Primer Surfacer. You mix it 1-1 with laquer thinner. I think it works awesome. You can spray or brush it on and it's easy to sand. Once I find something that works for me I stick with it. Ray
Can this epoxy primer be sprayed over the original 72 paint on my Skylark?Same question about the Duplicolor primer surfacer.Thanks guys...........Bruce.
Bruce I used this Duplicolor Primer Surfacer for alot for patch repairs I do for people I know and so far I haven't had a problem with it reacting with any cured paint. Ray
Epoxy Primer is not designed to be sanded. It is a hard Epoxy shell, which seals the metal underneath, almost eliminating rust. Other primers are actually pourus, which is why you see cars sprayed with other primers start to rust. Spray the epoxy on the metal, THEN add your bondo. You then use the surfacer primer to feather and fill low spots. The Epoxy primers work with just about everything! I have yet to find anyting other than paint remover that will react with an epoxy primer. I have sprayed it over existing paint jobs before. I dont like doing that, cause I like to take a car to metal, but it can be done. I generally shoot with epoxy, do my body work, then cover with epoxy again. I end up with an epoxy sandwich which seals my car from all elements. It will not rust! The nice thing about the Epoxy primer is that it dries with a semi shine. It gives you an idea of how things will look once the paint is sprayed. Look at it this way, you spend $80 to seal the car before you spend $5k on a paint job. Good investment. -Jon
