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Author Topic: Acrylic paints  (Read 2001 times)

Norman Castle

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Acrylic paints
« on: January 29, 2016, 06:05:45 PM »

The only time I've ever used acrylics (specifically the Tamiya ones) was years ago on a model railway, so now I have to ask - are they actually waterproof when dry?  Would a ply hull painted with acrylic then sprayed with acrylic varnish be as waterproof as one done with Humbrol enamels then sprayed with Humbrol varnish?

If so, can the acrylic go straight on top of sanding sealer, or what?
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radiojoe

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Re: Acrylic paints
« Reply #1 on: January 29, 2016, 06:26:40 PM »

Hi Norman, All my ships except one are painted with Acrylic paint, with no varnish on top, once Acrylic is cured it is totally water proof, however it dose not like smooth shiny surfaces it tends to "split" so make sure to key the surface well, I use 600g wet/dry paper.
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unbuiltnautilus

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Re: Acrylic paints
« Reply #2 on: January 29, 2016, 06:29:16 PM »

It wont dissolve in the water!
I have used both acrylics and enamels, I prefer enamels for high gloss finishes where water is concerned, but use a mix and match of both types for most work. Enamels are better for weathering effects, due to their slower drying rates. Weathering with acrylics is like a 100m sprint, work fast fast fast!
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Norman Castle

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Re: Acrylic paints
« Reply #3 on: January 29, 2016, 08:10:19 PM »

Much obliged, gents.  So as many coats of sanding sealer on the ply rubbed down between as necessary, then rub down lightly to break the shine, then acrylic and Bob's yer mother's brother?
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unbuiltnautilus

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Re: Acrylic paints
« Reply #4 on: January 30, 2016, 12:31:50 PM »

So the story goes, yes. A spray primer coat may not go amiss but that's really up to you. Try both options on a bit of scrap timber and see what you prefer.
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Norman Castle

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Re: Acrylic paints
« Reply #5 on: January 30, 2016, 12:56:50 PM »

Okey doke.  Thank you  :-)
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Captain fizz

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Re: Acrylic paints
« Reply #6 on: April 07, 2016, 09:15:15 AM »

What acrylic paints do people use which are available in bigger quantities ( 200-500ml )
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Jerry C

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Re: Acrylic paints
« Reply #7 on: April 07, 2016, 10:30:47 AM »

B&Q, any colour you wish, minimum 1/2 ltr.
Jerry.

Captain fizz

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Re: Acrylic paints
« Reply #8 on: April 11, 2016, 11:47:58 PM »

I have found two different makes of acrylic paints, both made in the USA. Available from Hobbycraft.
DecoArt, and Americana. The DecoArt is available in 236ml at 6 and the Americana in 60ml at 2.
Both paints are water based.
They come in a good selection of colours.
I have found that with a little thinning with water, they spray very well with good opacity and fast drying.
They are a much cheaper option than Humbrol or Tamiya.


simon
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essex2visuvesi

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Re: Acrylic paints
« Reply #9 on: April 12, 2016, 08:41:59 AM »

A good basecoat is a must with acrylics. I use either tamiya fine surface primer of Mr Surfacer when I can get it at a sensible price.
For larger parts automotive primer is fine, but can be a bit think for finer detail parts
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