Wet sanding between coats on SS paint (what are the benefits)?

T

tgwise

Hi, I am using SPI single stage black paint. What are the benefits to wet sanding between coats of paint. Any difference with the final outcome or shine factor? Thanks
 
I thought so too, I just keep reading different post where people are sanding in between coats. Unless a giant bug or something happen to land in it I don't think it needs sanded, even if there was a small run.
 
In between spray sessions, not coats. This levels out orange peel and urethane wave prior to re-clearing or re-coating with SS.
 
crashtech;n85588 said:
In between spray sessions, not coats. This levels out orange peel and urethane wave prior to re-clearing or re-coating with SS.
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What determines the length of a session? One day, two days. I guess I don't see the big picture. I don't understand, I thought that putting 3-4 coats on would fill all of these imperfections and then wet sanding the final coat would make it flat. Not questioning you as I obviously am the beginner here.
 
Complete spray with 3-4 coats wet sand and respray 3-4 coats again. Like spraying the vehicle twice which is what you are really doing.
 
tgwise;n85590 said:
What determines the length of a session? One day, two days. I guess I don't see the big picture. I don't understand, I thought that putting 3-4 coats on would fill all of these imperfections and then wet sanding the final coat would make it flat. Not questioning you as I obviously am the beginner here.
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A session would be where you are spraying coats back to back within a limited flash time, usually a half hour maximum. So like DATEC says. The first session is to get coverage, and the second is more of a sacrificial layer to provide enough film for extensive color sanding and polishing.
 
It all depends on the orange peel you get on your coats with your spray technique and being exact on your mixing. If you see peel after your first coat, the next coat is not going to hide all of it, so if you see peel early, you are better off removing it before its more peel on top of that peel. If you have no peel then the cutting and buffing is so much quicker and easier.
 
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