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 Post subject: Acrylics vs Enamels
PostPosted: Sun 20 Jul 2008 12:27 pm 
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I have had to start replace all my paints after they were stolen!
I was thinking of just using acrylics because of the problems mixing the two, which is best?

Considering all brands, which would you choose?

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PostPosted: Sun 20 Jul 2008 12:36 pm 
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Just slipped this over to the paint forum  :wink:

I used to be an enamel-exclusive user, but lately I've been experimenting with acrylis, oils, gouache, pencils, charcoal, pastels - you name it  :twisted:

I say there's no right or wrong, its whatever suits you best  :idea:  and don't be afraid to try out new techniques  :wink:

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PostPosted: Sun 20 Jul 2008 12:52 pm 
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Good point, I already use pastels, charcoal etc too. Iwondering was just  about the paints.

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PostPosted: Sun 20 Jul 2008 12:54 pm 
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The drying times of acrylics is excellent, although I think the range of colours available in enamels is far greater  :roll:

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PostPosted: Sun 20 Jul 2008 12:56 pm 
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I really don't have any business butting-in here since I can't make any intelligent recommendations about the paint brands in Europe.  I use Testor's products because I'm in the USA.  

But....... :wink:

The question you need to ask yourself is this-- how am I going to deal with the toxic nature of enamels in the long run (thirty or forty years)?  If you are committed to avoiding long-term exposure to harmful chemicals, then, personally, I'd use enamels.  Masking is a cinch.  The airbrush is easier to clean.  I really hated giving up spray painting and using the good-old enamels.

But I'm too lazy to do all that!  I don't want a "paint booth" and having to wear a mask is not my idea of fun.  I made the decision to go "green" and I don't regret it, since I'm old enough to immediately feel the effects breathing petroleum distillates.  

The odd thing (to me) is that a lot of modelers spray acrylics.  I still don't get this.  Seems like the worst of both worlds.  Paint that is lifted by masking tape AND hazardous airborne particles!

But hey--it's a hobby!  Always remember to have fun!

:D

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PostPosted: Sun 20 Jul 2008 15:21 pm 
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Ratch wrote:
Just slipped this over to the paint forum  :wink:

I used to be an enamel-exclusive user, but lately I've been experimenting with acrylis, oils, gouache, pencils, charcoal, pastels - you name it  :twisted:

I say there's no right or wrong, its whatever suits you best  :idea:  and don't be afraid to try out new techniques  :wink:

I would second Ratch's comments in their entirety!  :thumb:

I don't think there is such a thing as a best type of paint.  I prefer to use water based acrylics because they don't stink the house up, but I still use some enamel paints when I must and regularly use oils thinned with turps for washes.....I get a free headache with every outing of these!  :roll:

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PostPosted: Sun 20 Jul 2008 17:22 pm 
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How did thet get stolen?

I use acrylics and enamels

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 Post subject:
PostPosted: Sun 20 Jul 2008 20:31 pm 
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They were stolen while I was in hospital, its getting sorted though.

The acrylics I intended to use includes Tamiya, White Ensign, Xtracrylix, Vallejo, Gunze-Sangyo and Mr Hobby. I don't think finding the right colour should be problem.

Mark


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PostPosted: Sun 10 Aug 2008 19:04 pm 
Hello,

This may have been asked before but could someone please explain the actually differences between acrylic and enamel paints and what effects either would possibly have on your model?   :oops:      :?

Thanks, Tom

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PostPosted: Sun 10 Aug 2008 19:13 pm 
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42


Oh thats the answer to the meaning of life, the universe and everything  :shock:  but then the paint subject is almost as big  :roll:

Would you like to try the search or ask some smaller, bite-size questions  :?:

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PostPosted: Sun 10 Aug 2008 22:21 pm 
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...and thanks for all the fish!

But before I go, here's a very condensed course on model paint.

It has three parts, the solvent, which is liquid, the pigment, which usually starts life as a powder, and a "carrier" which is often a resin-like material. Solvent keeps the paint liquid until it's exposed to air, then the solvent evaporates and the "carrier" hardens in the air, binding the pigment and producing a thin, tough membrane.

At least, that would describe the old "enamel" paint.  "Enamel" was originally a method of coloring that involved application of pigment, then intense heat, and melting and merging of the pigment into a molten fluid, which, when cooled, produced a very tough and colorful finish.  Not suitable for plastic models.  The model enamel is a fast drying paint called "enamel" to distinguish it from it's close cousin-- lacquer.  Lacquer is usually not suitable for plastic, but the formula can be changed to make is safe for plastic, and the new, milder lacquer gets called enamel.  

It's thinned with "mineral spirits" (white spirits in the U.K.) also called "paint thinner."  It's easy to use, easy to mask, easy easy easy.  Also rather stinky and toxic, but not TOO bad.

Acrylic is a kinder and gentler paint, created in the space age.  It can be thinned with water.  But keep in mind that there are really several kinds of acrylic model paint, and one of them smells like alcohol.  That's because the solvent IS alcohol.  That would be Tamiya and Gunze paints, and they really should be thinned with alcohol.  Alcohol is (hic) toxic to a lesser degree than paint thinner.  Usually.

Good old water-based acrylic uses water as a solvent and is remarkably safe to use for most things.  That's the advantage to it.  Not toxic.  Modelmaster Acryl and Polyscale and (I think) the European acrylics from Humbrol and Revell and Xtracolor are of this type.  

Here's what it means on a model.  Acrylic is more difficult to use.  It requires more skill and experience to get a really good job.  Enamel is just so easy.  You can mask it with anything.  It just sticks to the surface and won't come off.  Acrylic just doesn't stick that well.  It sticks, yes, but not like enamel.

On the other hand, the "water based" paints are environmentally cleaner and the smell is much better.  However, you still need to use precaution when spraying acrylic.  It dries very fast (in mid-air) and if you inhale the dried particles it can cause lung problems.

And that's my essay on paint! :P

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 Post subject:
PostPosted: Mon 11 Aug 2008 11:24 am 
hey dancho,

thanks so much for all of your advice, it must have taken ages to write that!
I now know the difference!  :)

Thanks again,
Tom


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PostPosted: Thu 11 Dec 2014 10:39 am 
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Sorry mods if this is covered elsewhere, I've spent quite a bit of time looking through the threads but can't seem to find a definitive answer - although maybe there isn't one?
Since my recent return to modelling I've been using Humbrol acrylics, which I really like as they're easy to use, easy to clean up, quick to dry (I use a 'hairy stick' by the way). But, with Humbrol at least, they are limited colours. I am looking at creating a small dio or two, using the Airfix resin buildings. One of the suggested colours is Hu70 (Brick red) which is available in enamel only. Obviously this is quite a critical colour. If it was a grey for the walls or something, you could have more flexibility, but bricks really want to be a brick red! So, can I use the enamel brick red for the bricks but use acrylics everywhere else on the building? And can I paint over the enamel with acrylics if needed? I don't want to buy loads of enamels as I'm very happy using acrylics and have loads of them and don't want to replicate with enamels just for this project. Or - should I buy others, i.e. vallejo or something? I've only used Humbrol so far, as its just nice and easy to get the model and the paint from airfix.com all together!
Thanks in advance

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PostPosted: Thu 11 Dec 2014 10:54 am 
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70 was available in acrylic
http://www.airfix.com/humbrol/paints/ac ... paint.html
they might be redoing it.
113 rust or 100 German red brown look good on bricks.
Yes, you can over paint enamel with acrylics, and enamels on top of acrylics.

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PostPosted: Thu 11 Dec 2014 11:10 am 
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Thanks Fred.

I saw it said coming soon, but since I started modelling in September there's been quite a items on the site that have said 'Coming Soon' since then, and still haven't arrived! So i was working on the basis that it might be months before it arrives in acrylic.

But if I can mix and match then, thats OK anyway.

Thanks for your help.

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PostPosted: Thu 11 Dec 2014 11:17 am 
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Short answer: yes :D

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PostPosted: Thu 11 Dec 2014 12:38 pm 
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Great. Perfect.

Just what I wanted to know :-)

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PostPosted: Fri 12 Dec 2014 11:36 am 
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Be carful putting acrylics over enamels. The gas given of by enamels as they cure can disrupt the acrylic paint and cause it to craze. It's happened to me a couple of times and the only way to sort it out is to strip back the model to the plastic.

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PostPosted: Fri 12 Dec 2014 15:23 pm 
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Oh. This is the trouble - there always a potential problem somewhere.

I've got another query here then. the background (not that it really matters) is that I ordered a Saturn V from Airfix on 'Black Friday', which I was going to build and put on a nice 'plinth' etc for my dad as part of his Christmas present - he's a bug space fan / amateur astronomer etc. Anyway, its not arrived, I've rung them, its arriving too late for me to build it in time for Christmas. I've therefore been to my LMS and bought a 1/144 Revell Space Shuttle - good actually as when my dad went to America he actually went in the assembly building ad round the shuttle - Atlantis, which is what his has the decals for. Anyway, I needed some specific paints but the LMS sells only enamels. I already have loads of white and black acrylics, so didn't but those in enamel, but bought some dark grey etc. Therefore, the upshot of all this rambling is I will be painting the top half of the model in white acrylic and the underside in anthracite enamels. With black acrylics in certain places too. Maybe it would be easier just to go and buy a couple more enamel paints for this particular model?!

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PostPosted: Fri 12 Dec 2014 15:36 pm 
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Simple solution lay down the acrylic paints first and then add the enamels to the areas that need it. I've done several models (including the Airfix Saturn V) spraying the whole thing acrylic white (much better than enamel white) and then adding the enamel colour areas over the top. It does depend on the brand but enamels over acrylics do tend to be safer then the other way around.

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