Been painting the removable panels of my car this weekend and had a problem with the top coat

 

all was fine on the door untill i put the last coat on and ran out of clear, quickly mixed some more and then carried on on the panel.

 

suddenly i got a reaction and the clear coat wrinkled a little. not sure but i think it may have messed up the base coat.

 

using 2k clear over a metalic black base.

 

i know its my own stupid fault but this is my first spray job and im learning.

 

im going to flat it down and polish an area tosee if the metalic is effected.

 

Am i best assuming it has reacted down to the base to flat it off and give i light base coat followed by clear again or do i need to strip it all back

with-out seeing it mate sounds more like over load of the laquer ,you using thinners in your clear coat? probally no use to you now but on the chance you run out again on a part panel start at the opposite end and flash up to where you ran out or you might have a reaction(silicone etc)try flatting it down and mopping back up try not to break through the clear coat as this can be sealing the cause of the problem hth

PM boldy on here, he sprays cars for a living.

thanks for the responses guys

 

on the door where i had the problem i have wet sanded it back with 200 grit them moped it with g3, whilst the finish is now like a mirror you can see where the reaction has altered the base coat.

 

a bigger problem i have now is that none of the clear i applied has fully cured. it has now been at least4 days and all panels can easily marked with a finger nail etc. could these be connected. i realise my problem before was probobly due to me recoating the clear too quick as when i ran out it must have partially cured.

 

i think im going to have to flat back all the parts i have painted right back to the primer:death:

 

not going to use clear over base again, going to buy some 2k black as i dont think i can get the base coat up to my expectations (very high). At least with the 2k black i can get the car painted with minimal fuss and then wet sand and polish to a perfect shine.

 

on a positive note all my panel prep was spot on as all panels are perfect (flat)

 

Just feel like burning the damm thing now, hours of work gone to waste:crying:

Did you mix the same amount of hardener/activator in both applications?

Sounds to me like not enough hardener to,hence your drying times and also the conditions when and where you were spraying, i.e temp, humidity etc

yep, i was very precise with the mixing etc 2:1:10% using 2k thinners, up to 50% on the final coat to give a smooth layout

 

si,

do you think i should persist with the metallic black or go for plain black now. i have always prefered plain black but wanted to keep the colour original. Plain black will give a much deeper shine etc. or i could just go for white.

 

i need some inspiration to keep me going in these darkest of times

temps were around 20c with lowish humidity

si,

do you think i should persist with the metallic black or go for plain black now. i have always prefered plain black but wanted to keep the colour original. Plain black will give a much deeper shine etc. or i could just go for white.

 

i need some inspiration to keep me going in these darkest of times

 

I like both dammit! Hard decision mate. I like the metallic black as it looks much nicer in the sun. But I like solid black when it's overcast/night as it's a little more crisp.

 

I think I'd go a metallic black.

hi mate if its still tacky after 4 days,the mix must have been wrong,are the hardner and thinner tins alike ,and you might have mixed them up,plus how old is the laquer as you should,nt be using it with thinners really now days ,plus if you managed to mop it up it must be going off ,if only the door is the prob you could just flick the door again and see if it reacts again before pulling it all back off,if it goes o.k but the laquer still marks i,d be tempted to give a 1500 all over then re-laquer the lot with perhaps some compliant laquer that dont need thinners ,hope you get it sorted mate

Hi mate

 

bought the clear coat from a paint supplier about 6 months ago, i definatly got the mix right (not sure about the thinners now) and didnt mix up the tins etc.

 

the paint has sort of cured its just very soft

If its not fully cured that could be why its reacted

Gutted for you. Don't give up fella, seek knowledgable advice and take your time before attacking it again. It'll come good for ya, and when it does you can stand back and think "i did that".

Daffy.

I had mine re sprayed original metallic black as the car came out of the factory. I now wish i had it done in flat black as you can get a much beter shine and is more rewarding after a good polish.