Not able to clearcoat instantly, now what?
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Due to circumstances i wasn’t able to clearcoat within 24-48 hours, so now i have a problem(?).
It’s an all solid basecoat color (bright lime green with some blue and white stripings) so maybe it’s possible
to use a grey scotch pad and carefully wetsand and then clear.
I think this won’t leave visible marks after clearing but i’m not sure. (I know this isn’t an option with metallics).Adding another layer of base is no option.
But maybe the easiest solution: i was thinking of overreducing the first layer of clear (let’s say 20% thinner, normally i don’t use any) which will give the clear some agressivenes to the base. Second layer of clear no thinner.
Is this an option?
What brand of base and how long has it been? most of the time you can shoot a coat of over reduced clear base coat down and then keep going. but some more specifics would be helpful.
[quote=”ding” post=26285]What brand of base and how long has it been? most of the time you can shoot a coat of over reduced clear base coat down and then keep going. but some more specifics would be helpful.[/quote]
The base is PPG Deltron BC.
It’s been painted 2 days ago, but i can’t use the booth for the next 3-4 days so it will be 6 days in total.
It’s a motorcycle tank, maybe is wrapping it in kitchenfoil a good idea to prevent further curing?
According to the tech sheet, “If the basecoat color is allowed to dry more than 24 hours, it must be scuffed and new basecoat color applied.”
[quote=”Ben” post=26287]According to the tech sheet, “If the basecoat color is allowed to dry more than 24 hours, it must be scuffed and new basecoat color applied.”[/quote]
No surprise, but no option. I just wrapped the tank in kitchenfoil which slows down curing (i hope).
What is a safe amount of overreducing the clear? 25% thinner for the first layer of clear? (I use a clear which normally doesn’t have to be reduced according the tech sheet).
Not too sure about this method i Always follow the TDS exactly.
You’ll be ok with DBC as long as as you didnt use dx57 hardener in in. just get some dbc 500 reduce it about 150% and spray a coat on before clearing. covering it up wont help you.
[quote=”ding” post=26291]You’ll be ok with DBC as long as as you didnt use dx57 hardener in in. just get some dbc 500 reduce it about 150% and spray a coat on before clearing. covering it up wont help you.[/quote]
Don’t have 500 or something similar in the house, and ordering it will only take it longer. My only option is to overreduce the clear i normally use.
How far should i go with adding thinner, 25-30%? After a good flash-off i will use unreduced clear for the second layer.Scuffing with a gray pad is by the way no option. The lime green gets slightly more blueish if i do.
what clear are you using
Acme Finish1.
what reducer are you gonna use with the Finish 1. I would really get some clear base. your jobber should have it in stock. if not he can do a 50/50 mix of the 2 mixing clears of the dbc bench. I think they are 683 and 1689 but I could be wrong on the numbers
That would be 1649 & 1689 mix those together. Reduce it 1:1
Okay, i just painted the tank. The first thin layer of clear i’ve added ~40% thinner, and the next layers were unreduced. It came out nice and now pray it still looks nice over a year or so. 🙂
By the way, i think that greasy fingers on the basecoat or excessive use of a tack cloth causes more afhesive problems for the clear than a base that cured too long. If you feel the basecoat, it isn’t like glass but feels a little rough which should give enough tooth to the clear anyway.
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