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What is a wet coat?

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  • Member since
    January 2021
  • From: Near Chicago
What is a wet coat?
Posted by Teenage Modeler on Monday, January 25, 2021 8:46 PM

Hello, I'm a new scale modeler. I was watching some YouTube videos about painting model cars, where I saw that you had to spray "Wet Coats"

 

So, what is this wet coat? And what is the difference compared to a "mist/light coat?"

I am a teenager, and I am just as interested in this hobby as all the adults.

 

 

  • Member since
    May 2004
  • From: Land of Lakes
Posted by cbaltrin on Tuesday, January 26, 2021 2:51 AM

A wet coat is a final heavier coat that looks wet after you put it on . It takes a bit of practice because there is a fine line between a wet coat and too much paint that would just end up running. You Usually mist on several light Coats 1st to build-up the color and give the wet coat something to stick to and then you put on a final wet coat to give a nice smooth glossy finish. You should put on the wet coat  before the mist Coats dry completely

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  • Member since
    November 2018
Posted by oldermodelguy on Tuesday, January 26, 2021 4:11 AM

What I tend to do with cars is progressively heavier coats. How this is accomplished depends too on what you are applying the paint with. In my case that is generally an airbrush where I have control over the paint flow rate by opening the nozzle more or less according to the paint amount I want. With spray cans it's more about distance from the surface and speed of passes per coat ( still available to the airbrush user as well). With brushes it's the amount of paint you load the brush with. And in any instance experience and practice produce the winner. In spray painting there is a balance between distance sprayed from and how fast you pass the spray over the car parts. If you slow down it gets wetter, speed up then dryer or more of a mist coat than really wet. Same with distance, further away dryer, closer in wetter or heavier. A direct cross reference to dryer and wetter coats are the terms lighter or heavier coats. You should be getting the picture in your mind about now. Dry vs wet is about less or more paint per pass. Yet with an airbrush it's more than that because you can put down a wet coat that is light by changing nozzles but that's off the general topic here for now.

So recapping in a general way. Slow down and move in closer for wetter coats. Move further away and speed up will generally make more of a mist coat or dryer coat. This concerns spray painting, obviously brush painting is another matter and an art form of it's own.

  • Member since
    April 2020
Posted by Eaglecash867 on Tuesday, January 26, 2021 8:01 AM

I use the same techniques as above.  I wouldn't really call what I do coats though.  I've become accustomed to just using my old Paasche H single-action, siphon feed airbrush, so my way of painting is based on that.  In my case, I would call my base coats passes, since I'm going back over the model from where I began right after I finish the first pass.  The first pass is further away and faster, with each pass getting progressively closer until I have an even, glossy finish.  After that cures for about 7 days (that is for using Model Master enamels) in my little dust-free chamber (an upside-down Gladware dish), then I do my version of a wet coat.  I make a paint mixture using the base color and Model Master thinner...a mixture that is mostly thinner.  I shoot that in quick, even, straight-line passes.  When that cures, and I'm afraid to touch it because it still looks like fresh, wet paint, then I know I have a good result.  Ultimately its going to come down to lots of experimentation and finding a technique that works best for you, but this is how I do mine.  Its not just good for car bodies, but also for the dreaded job of painting the insides of jet intakes.  It melts down the base coat that is grainy due to trying to paint the inside of a tube, and results in a smooth, glossy finish.

If you screw up and want to start over, there's always a bath in isopropyl alcohol that can take it back to being a clean slate.  I've had to resort to that many times while trying out new techniques

"You can have my illegal fireworks when you pry them from my cold, dead fingers...which are...over there somewhere."

  • Member since
    November 2009
  • From: Twin Cities of Minnesota
Posted by Don Stauffer on Tuesday, January 26, 2021 8:56 AM

I consider a wet coat as one just about ready to run.  How do you know what it looks like just before it runs?  Practice. I believe the secret to a wet gloss coat is to practice for at least a half hour or so on scrap plastic rather than gaining experience ruining good plastic models.

Don Stauffer in Minnesota

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