Page 1 of 1
opinions on paint preparation
Posted: Sat Feb 02, 2013 10:08 pm
by les
Now my van is finished I need to freshen up the pick-up and would like some opinions on the paintwork issue. Having resprayed it a dozen or so years ago, I don't want to get too serious with it again so thought i would prepare any iffy areas and spot prime, then rub down and blend in the existing top coat and go straight over that with the new top coat, missing out the primer stage where the paint is sound. I was wondering if this would be an acceptable practice in achieving a decent job? I've always, in the past, done the whole prepare, prime, top coat thing. I'm thinking in this case it may not necessarily be needed.
Re: opinions on paint preparation
Posted: Sat Feb 02, 2013 11:05 pm
by PaulTubby
Hi, if you repair the local areas and etch spot prime them and give the body a good wet and dry now with 800 wet and dry or even 400 for a good key it should be ok not to have to re prime everything..... but as always the prep is the most important and hard work to achieve the best finish..... make sure you etch primer the repairs and go over on to sound paint and flat them and blend them in well... my advice is to do your spot primering then leave it for a good week for any areas to sink.... then block flat it all, may need stoper in some cases for final blending etc....

Re: opinions on paint preparation
Posted: Sat Feb 02, 2013 11:14 pm
by les
Thanks for your reply, hadn't thought of using etch primer but it I get down to any bare metal I'll use it.
Re: opinions on paint preparation
Posted: Sat Feb 02, 2013 11:35 pm
by PaulTubby
Id use etch primmer on ALL your spot repairs, blends and flatens well and will give a good key to new paint....
Re: opinions on paint preparation
Posted: Sat Feb 09, 2013 10:37 pm
by dgservices
hi
re your paint question. i have been painting for 35 years or more now. it is perfectly acceptable to spot prime over a well flatted substrate surface. i use 2 pack primers for such and always use a single pack etch primer on all bare metal. i dont recommed flatting the etch. once it has flashed off say about 20 mins go straight over with the 2 pack primer. this will give you a great surface to work from. also 2 pack primers as opposed to old celly ones give you virtually no old surface reactions. good luck.
Re: opinions on paint preparation
Posted: Sat Feb 09, 2013 10:59 pm
by les
Thanks for your information, I would be keen to follow your instruction concerning 2 pack primer, especially given the advantages you describe but as I'm doing this at home without too much in the way of personal air supply, I'm thinking this is a bit risky. Hopefully there won't be too much etch or primer needed.