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Sanding acrylics

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  • Member since
    April, 2019
Posted by Chef D on Tuesday, April 16, 2019 7:19 PM

Lol! Thank you very much for your assistance. Sorry about the exclamation points. It's a bad habit. You are correct about the clumping. May I ask what grit sandpaper I should use? I have quite a few bottles of Vallejo paints, so I have know choice but to use them up. Limited funds living on disability. I truly appreciate you taking the time to help me out!!!!! Lol. Have a great life. 

  • Member since
    January, 2017
Posted by 195X on Saturday, April 13, 2019 10:39 AM

Okay calm down. No need for an (!) at the end of every sentence. Makes me feel like you're yelling.

The Vallejo paints are the issue. They say they are for hobbies but their "hobby" paints were developed for miniatures (war gaming) and military models. 99% of that stuff is flat in tone and needs no sanding due to it's size/shape. Most of these types of paints are latexy in feel.

When you go to sand, whether primered or not, the paint tears along edges and balls up under the sandpaper in little clumps. Am I right?

These paints go on micro thin and to be honest should never need sanding due to their nature. I would suggest two things. First, move over to another brand of paint like Createx. The paints you're using deserve the accolades they've recieved, but not for model cars. Secondly, if you feel the need to sand any of these paints, treat them as though they were a metal flake and clear coat them first, then wet sand to even the surface.

The only other alternative with these paints when you screw up, is to strip and start over. I hope some of this is a help. Cheers!

My favorite color is clear. I am also ambidexterous, I can screw up equally well with either hand. I am 53 years old and been building for most of that time. :)

On the bench... somewhere. Pink Panther show car, 1978 Dodge Magnum Charger Daytona Midnight edition SE 300. Mongrel T.

  • Member since
    April, 2019
Posted by Chef D on Saturday, April 13, 2019 7:47 AM

Thank you very much 195X! I do use a respirator! I am using Vallejo paints!

  • Member since
    January, 2017
Posted by 195X on Friday, April 12, 2019 9:01 PM

Well if you have to spray acrylics due to health reasons, I can't see sanding them as very healthy either. Hope you're at least using a particle mask?

 

The reason you're getting conflicting answers is because there are about as many answers as there are paints. People tend to think in linear terms. They hear lacquer, enamel, acrylic, and they're satisfied with that. Unfortunately you have about a half dozen or so types of acrylic paint from the cheap, latexy type of craft paints, all the way up to automotive grade.

Let's start with, which brand and type of paint are you using?

My favorite color is clear. I am also ambidexterous, I can screw up equally well with either hand. I am 53 years old and been building for most of that time. :)

On the bench... somewhere. Pink Panther show car, 1978 Dodge Magnum Charger Daytona Midnight edition SE 300. Mongrel T.

  • Member since
    April, 2019
Sanding acrylics
Posted by Chef D on Friday, April 12, 2019 3:55 PM

Thanks everyone! I keep getting conflicting answers to this question. I only use acrylics mainly for health reasons. Can you sand acrylics?

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