primer over old paint.

T

twonk

Guest
Hi just a quick question for you all.

A friend wants me to paint his bike, at the moment the paint on the bike seems to be cellulose paint, would it be ok to scuff it well, prime it with 2 pack primer ?
/ubbthreads/images/graemlins/think.gif
Thanks
J.
 
L

LudicrousSpeed

New member
It is preferrable to sand it all down, so the chance of something coming thru is reduced.

I have, in the past, painted over lacquer paint with good success. As long as the current paint is in good shape with no problems, you could scuff it with 600 and use a catalyzed epoxy primer. This will act as a sealer of sorts.
 
B

bek

Guest
i want to repaint a recent base -clear coat job i did not real happy with it can i just reprime with a good 2part primer and then repaint
 
L

LudicrousSpeed

New member
If the clear is a catalyzed type, then sand it flat without going through(!) and paint over this. Unless there is some reason you need the build of the primer. I wouldn't add any more thickness than you really need.....
 
R

rex

New member
Hmm,never saw this one on the puter at work.Both answers are covered well.For the first one,the only problem comes from a refinish lacquer job you're trying to redo,cured original lacquer is rarely going to cause a prob.The second one is fine too but as LS said DON"T break thru the clear or you will have to prime that spot to hold it down from a bullseye or wrinkling.I believe the best sealer you can get is a sound previous paintjob if you're just going to recolor and clear,primers (surfacers or sealers) are a waste of time and money.
 
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bek

Guest
cant seem to have any luck with the repaint no matter what i try the new paint is wrinkling in some spots and cannot figure out why (same paint extra attention to prep,etc,etc) very frustrated have LOTS of time in tryin to get this to work
 
H

hhhoggg

Guest
Bek,
Don't know what type of primer you are using, but you must be using a "hot" thinner or reducer, or the clearcoat is too fresh to be priming over. Try "dry priming" the areas.

Dry Priming means putting the primer on with more air than primer. This will make it dry quicker, and give you less of a chance of it lifting. Then I would let this sit a while and lightly sand...don't break through the primer, or the new paint may also lift your old clearcoat. /ubbthreads/images/graemlins/luck.gif
 
T

TAZ

Guest
Oops! I accidently posted this under "hhhoggg" username.

He had a problem so I had to login as him to correct it and forgot to log back out...

Sorry...Scott F
 
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