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Vallejo Acrylic Gloss question

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11 replies
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  • Member since
    May 2011
Posted by dazzjazz on Sunday, November 14, 2021 9:24 PM

I put the flat clear coat on and the colour is lighter, but a lot of modulatipn detail has been lost. In future I will have to exaggerate the modulation, so that when all the clear coats are on, it will look about right.

 

The model in question is detailed inhttp://cs.finescale.com/fsm/modeling_subjects/f/2/t/189625.aspx 

  • Member since
    January 2020
Posted by Space Ranger on Saturday, November 13, 2021 8:35 AM

dazzjazz

Yeah - but why would it do that when it's a clear coat?

 

Flat finishes are flat because they are rough. The roughness scatters the light and makes the color look lighter than it would be otherwise. When you apply a clear coat, you fill in the "valleys" between the "hills" of the roughness, smoothing it and reducing the scattering. An additional flat coat will restore some of that roughness but not completely.

I suggest avoid clear gloss altogether. If you are trying to avoid "slivering" when applying decals, just polish your flat paint until it is smooth. This will darken the color slightly, but not nearly so much as applying a gloss coat. Apply decals using Micro Set and Micro Sol, and when they are dry, spray your final clear coat.

  • Member since
    April 2020
Posted by Eaglecash867 on Saturday, November 13, 2021 8:24 AM

dazzjazz

Looks like I've found modelling pitfall #642 - don't use Vallejo Acrylic Gloss. Talk about a frustrating hobby!

I bought it as it's a big can and more economical than Testors or Tamiya. Damn. 

 

So, I take it that you don't want to try putting on the flat clearcoat to see if your color modulation comes back?  Huh?

I'm betting it will, and you're already at the point where you have nothing to lose.

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

  • Member since
    November 2018
Posted by oldermodelguy on Saturday, November 13, 2021 7:05 AM

Nah, It's not a matter of Vallejo, as has been mentioned. Most clear glosses intesify or deepen the color as well as in the case of metallics for instance increase the highlights, magnify the refectance. The glossier it is the more so the effect, generally speaking.

  • Member since
    March 2003
  • From: Western North Carolina
Posted by Tojo72 on Saturday, November 13, 2021 6:30 AM

Ditto

Agreed,kinda what I mentioned before,any clear will darken never had no issues with Vallejo

  • Member since
    August 2005
  • From: Sydney, Australia
Posted by Phil_H on Saturday, November 13, 2021 12:26 AM

dazzjazz
Looks like I've found modelling pitfall #642 - don't use Vallejo Acrylic Gloss. Talk about a frustrating hobby! I bought it as it's a big can and more economical than Testors or Tamiya. Damn. 

It doesn't matter what brand. Any glosscoat will alter the reflectivity of a flat basecoat and make it appear darker. Some colours will be affected more than others.

The only way to knw what the effect will be is to test the same paint/process on a paint mule before applying it to a live build.

  • Member since
    May 2011
Posted by dazzjazz on Friday, November 12, 2021 8:43 PM

Looks like I've found modelling pitfall #642 - don't use Vallejo Acrylic Gloss. Talk about a frustrating hobby!

I bought it as it's a big can and more economical than Testors or Tamiya. Damn. 

  • Member since
    March 2003
  • From: Western North Carolina
Posted by Tojo72 on Wednesday, November 10, 2021 7:32 PM
Clears darkens, if you pour water on something it darkens it,now with water it goes away, but the clear coat is more permanent.

  • Member since
    May 2011
Posted by dazzjazz on Wednesday, November 10, 2021 3:31 PM

Yeah - but why would it do that when it's a clear coat?

  • Member since
    April 2020
Posted by Eaglecash867 on Wednesday, November 10, 2021 3:04 PM

Yup.  Only one way to find out. Cowboy

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

  • Member since
    March 2003
  • From: Western North Carolina
Posted by Tojo72 on Wednesday, November 10, 2021 2:24 PM
Can't say for sure,but since you need to put the matte on anyway, once you do that, you will see.

  • Member since
    May 2011
Vallejo Acrylic Gloss question
Posted by dazzjazz on Wednesday, November 10, 2021 1:50 PM

Hi,

I just finished a nice colour modulation job on the upper surface of an aircraft. 
I sealed it Vallejo Acrylic Gloss to protect the job and provide a surface for the decals. Unfortunately, the gloss has made the paint job go so dark as to make the modulation largely disappear! 

once I apply a clear matt coat, will it reappear?

Darren

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