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Hey! What’s going on?!
Tony from LearnAutoBodyAndPaint.
A quick little Q&A here. I got a question in from a subscriber. Actually two of them which made me make this video recently.
So the question was, “Tony, if I mix paints, base coats and stuff, how long can I wait? Can I store it on the side for a little while and paint it?”
He’s kind of getting confused with the storage of paints. So here’s my answer.
In the video, I have the Omni Plus, the regular base coat. So if you’re doing any kind of base coat. All you do is add reducer in base coats.
Because you’re not adding any catalyst or hardener or an activator, you don’t have to worry about hardening.
Base coats are always mixed with reducers. 50/50 ratio. Pint the reducer, mix it up and there’s your paint. A paintable base coat.
If you have leftover, you could absolutely put that back in the can, store it and put it back on the shelf. It will last another couple of months or years.
If you have it up there for a couple of years and you want to use it up again, you just change the consistency. You may need to add five percent more reducer, mix it up a little then use it. No problem.
It’s a different story when it comes down to clear coats. You have to mix clear coats with an activator and a reducer. Sometimes just an activator.
When you do that, you have something called the pot life. Pot life means the certain amount of time it remains usable before it goes bad. After its pot life, it gets hard, it starts to catalyze, starts to crystallize.
Watch the video as I show you a sample of a clear coat which is a couple of days old. You could see it’s basically hard.
You can bang it on your head. It’s hard, okay? You can’t use it again. You can’t add reducer again, mix it up and re-spray it. It’s just hard clear coat.
So, with clear coat you have a pot life which could be from six to eight hours, depending on the heat. Enough time to paint your car and finish your job.
Be sure to clean out your gun after you’re done spraying clear coat and get rid of the rest of the clear. Don’t put it back in the clear container because you’re going to mess it up.
Same thing for 2K primers. Once you mix that up you can’t put it back in the can and save it for another day.
When you’re mixing clear coat for cars, you always want to mix extra because you don’t want to have to be in the middle of a clear coat job and not have any clear.
That happened to me. And you got to go mixing up some clear coat and finish the job.
If you’re in the middle of the job and you have half a cup of clear left and you have to mix more, don’t use it all up and mix more and spray it.
What you do is mix your batch, put what’s left in it and then mix it up as well and then you fill your gun and finish the job.
You don’t want to have a totally new clear on the car midway as you’re painting. Again, take what you have in your cup, put it in the mixed batch and add it. Put it back in the gun and then continue spraying.
So just a couple of tips to help you out. And I hope it did.
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