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Adieu Acrylics

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  • Member since
    July 2003
  • From: Chicago, USA
Adieu Acrylics
Posted by MonsterZero on Monday, November 1, 2004 11:52 AM
The drying time of acrylics (alcohol evaporation) is simply too fast for airbrush applications and results in "sandpaper finish" or coarse, dusty finish if you will.

If you try to control the consistency of paint you either get coarse or you overthin the paint thus damaging its covering properties. You will hit the perfect balance only now and then, wasting the finishes of expensive models.

I know that if I waste another 5 models I will finally come up with a solution to the coarse finish, but I'm tired of acrylics and have always gotten awesome results with enamels.
  • Member since
    January 2004
  • From: USA
Posted by MusicCity on Monday, November 1, 2004 11:57 AM
Acrylic retarder, available at most art supply stores, will slow down the drying time significantly. Also, if you use Tamiya acrylics their thinner apparently has some retarder in it since it also dramatically slows down the drying time.

I like acrylics, once I got accustomed to them, and there is no way in the world I'd ever go back to enamel again.
Scott Craig -- Nashville, TN -- My Website -- My Models Page
  • Member since
    February 2003
  • From: A Spartan in the Wolverine State
Posted by rjkplasticmod on Monday, November 1, 2004 12:23 PM
I've tried acrylics, but I've been using enamels & lacquers for so long, I just can't get comfortable with them. I'll stay with what I know best.

Regards, Rick
RICK At My Age, I've Seen It All, Done It All, But I Don't Remember It All...
  • Member since
    November 2005
Posted by Anonymous on Monday, November 1, 2004 2:49 PM
Gunze also makes a thinner with a retarder added in, plus they also sell the retarder seperate.

I use a retarder even for brush painting as it helps eliminate brush strokes.
  • Member since
    December 2003
Posted by cbreeze on Monday, November 1, 2004 7:02 PM
Monster Zero,

I think I will second that. I am getting back into modeling after 12 years of other interests and thought I would give acrylics a try. This is after spending countless hours reading the various threads, pros and cons, trying to absorb it all and come up with a system that will work for me.

I started on a 1/48 Corsair and things have been going well until it came time to paint the fuse. Basically, after washing the model, and painting, I have the same old adhesion problems. I am using model master thinned with Golden retarder. In masking off the different sections to do the camo job, I have the tape lifting off sections of previously applied color. I am using both Tamiya and also blue painters tape. So far I have a lot of time invested in this model and it is pretty upsetting to have this happen at such a late stage. I hope I can salvage it but I really dont like having to go over previously painted areas and trying to get them to blend and look good.

So I feel your pain and frustration, this is probably it for me with acrylics as the exterior paint. I might stick with them for interior sections.

Chuck B.
  • Member since
    April 2003
  • From: Hayward, CA
Posted by MikeV on Monday, November 1, 2004 8:13 PM
Chuck,

Try priming the model first with a good primer such as Floquil and then your paint will adhere better.
You can also just scuff the surface of the model with a Scotchbrite pad and it will leave fine scratches that will give the paint some tooth to adhere to.

Mike

Wisdom is the right use of knowledge. To know is not to be wise. Many men know a great deal, and are all the greater fools for it. There is no fool so great a fool as a knowing fool. But to know how to use knowledge is to have wisdom. " Charles Spurgeon
  • Member since
    July 2003
  • From: Chicago, USA
Posted by MonsterZero on Tuesday, November 2, 2004 11:09 AM
If you'd screwed up the paint on the turret or hull of a tank model you can dunk the whole thing in brake fluid, strip the paint and start over.

But forget about stripping if it's an airplane with beautifuly painted cocpit that you can't repaint without ripping the fuselage halfs apart. That model is likely wasted.

In addition to better drying properties, enamel finish is like armor, much more resistant to physical and especially chemical damage.
  • Member since
    January 2004
  • From: USA
Posted by MusicCity on Tuesday, November 2, 2004 2:35 PM
QUOTE: In addition to better drying properties ...

Depends on your definition of "Better Drying Properties". Personally I like acrylics, and I like using paint that dries to the touch in about 5 minutes. I agree that acrylics take some getting used to, and you have to change some of the ways you've done things in the past, but like I said: I'll never go back to enamels.
Scott Craig -- Nashville, TN -- My Website -- My Models Page
  • Member since
    December 2003
Posted by cbreeze on Tuesday, November 2, 2004 3:46 PM
Ok, might be on to something.

I was trying to repair the areas of my Corsair where the paint lifted off with the tape. Got it cleaned up, sanded the area a little bit and was ready to shoot more paint. I had a bottle of Tamiya thinner that was just sitting there and I said to myself, what the heck and used that as a thinner. What a difference, it made the paint go on real smooth with no "bumps". I shot the area that needed touching up and was really impressed with how it turned out. I have to shoot another color around what I just painted so I am waiting to see if the Tamiya thinner will make a difference with the adhesion. Gonna give it a day to dry then put it to the tape test. I do seem to recall someone out there in one of these forums saying that he used the Tamiya thinner and it worked really well for him. We'll see, maybe there is hop yet.
  • Member since
    July 2004
  • From: SETX. USA
Posted by tho9900 on Tuesday, November 2, 2004 6:23 PM
I'b be one of those people cbreeze... especially with Tamiya paints... I only use Tamiya thinner, use it for my MM Acrylics too... I go both ways, enamel and acrylic. I prefer acrylics though once I got used to them like Scott said.

the only thing I really go out of my way to use enamel on now is a higher gloss finish like the HH-65 Coast Gaurd chopper sitting on my shelf I need to finish... everything else is acrylic.

Recently I got turned on to Vallejo acrylics and I am trying them out but I seem to like them more than the Tamiya, about the same as the MM... they do clean up a lot better and are easier to measure as they are in squeeze bottles you can put out paint by the drop from. Same with the thinner... so it's easy to calculate a ratio.

I suggest the primer as well, a nice clean model, and at LEAST 24 hours drying time before masking...
---Tom--- O' brave new world, That has such people in it!
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