discussion painting problem

[Ash]

Hi, im painting my 1/48 model spitfire and im fairly happy with the camouflage part, im now painting underneath with a pale green colour paint. im using acrylic paint but im getting hard lumps appearing here and the on my model where ive painted. why is this please? do i need to stir the paint in the pot it comes in more or what i dont know. heres a picture of what ive done http://s895.photobucket.com/user/alecras234/media/WP_20140406_0011_zpsb95cb230.jpg.html

 

[Alan 45]

Hello Ash it looks like it needs stirring , the paint looks like it's separated from the pigment

 

[Ash]

i use a cocktail stick to stir but i never know when to stop stirring. Also do i apply acrylic paint thinly, how many coats?

 

[eddiesolo]

It does look like it isn't mixed properly Ash. Are you using a paintbrush or airbrush to apply?

Si

 

[Alan 45]

All you have to do is to stir until all the pigment and all the paint is smooth

It's best to give two thin coats even a third if need be also only load your brush half way and wipe it once both sides of the brush

I hope this helps you out

 

[Ash]

im using the old hairy stick haha, a brush

 

[Alan 45]

I'm a hairy stick chap

 

[eddiesolo]

As suggested thin coats, dried between coats will give you the best results Ash.

Si

 

[eddiesolo]

I'm a hairy stick chap

No comment.

Si

 

[Ash]

is using a cocktail stick to stir paint ok? do i pour the mixed paint into something?

 

[eddiesolo]

Some paints have a small ball bearing or plastic ball in the bottle to help in mixing, if you don't have one then you can help the initial mixing by shaking and then rolling the bottle across a work surface-this helps to agitate the pigment and binder, once done you can open the bottle and a cocktail stick or even the end of a thin paintbrush to mix again-pour a bit out onto a painting palette and see how it is mixed together then start to paint. Use a small bit at a time and once you have got what you need re-seal the bottle-acrylic paints will last 24hrs or so if covered but will dry out quickly if left in a warm environment-not much chance if using a bottle but it saves on spillages too. Once you have done some painting and the first coat is dry, remix the bottle to agitate the contents again before dipping in to do a second coat.

Si

 

[Guest]

Ash, I've always found the best paint stirring rule is stir, stir & stir again ...once you think it's mixed ok ... stir some more to be sure!

http://www.scale-models.co.uk/threads/%C2%A31-battery-powered-paint-stirrer.15909/

There's a link to a stirrer I made for £1 - it might help.

Cheers

Patrick

 

[Guest]

Ash a bit of information. Are you airbrushing and it looks like it.

What paint are you using and are you thinning and if so with what ?

Airbrushing is the brush clean. Assuming an airbrush can you see the darker green streaks in the paint cup when you put it in.

To give some idea slodge a bit out on paper and see if you get the same result.

Always think it is good practice to try a 5 sec or so practice burst on a plastic bottle. This normally or at least on average shows up if the paint is weird or the airbrush is not doing its thing.

Laurie

 

[Guest]

Ash, I've always found the best paint stirring rule is stir, stir & stir again ...once you think it's mixed ok ... stir some more to be sure!http://www.scale-models.co.uk/threads/£1-battery-powered-paint-stirrer.15909/

There's a link to a stirrer I made for £1 - it might help.

Cheers

Patrick

Pound land do a milk frother, straighten out the whisk and this works as well.

 

[Guest]

Laurie,

Ash said that he's brush painting! Scroll up old chap

 

[Guest]

Laurie,Ash said that he's brush painting! Scroll up old chap

Do not call me "old" Patrick I am only 75 going on 76 soon.

Laurie

 

[flyjoe180]

Hi Ash. It sounds and looks to me like the paint isn't mixed properly, or your brush is dragging the paint or is dirty. I use enamels and normally brush paint; the same principles apply for acrylic paint brushed from a pot. Stir until you can't stir any more, you can never stir enough so no danger of over doing it. The pigment must be dissolved into the paint mixture completely. Moisten your brush (for enamels use enamel thinners, in your case use water or acrylic thinner). Use light strokes, ensuring you moisten the brush periodically using your water/thinner. Keep the brush clean by wiping it on a lint-free rag every now and again. Avoid dragging the paint too far and 'back brushing' it, as this can cause small lumps to appear. In other words use enough paint to cover a small area at a time. Stir the paint again every few minutes. It's a patience game, you will probably need a minimum of two, possibly three coats. This is one of the down sides to brush painting. Ensure the paint from the previous coat is totally dry prior to adding another layer, as this can also be the cause of lumps or marks appearing on your finish. If you notice your paint is getting lumpy in the pot you are probably either not stirring it often enough, or you are scraping dirt/dried paint lumps from your brush into the paint, hence the advice regarding keeping your brush clean and moist. Hope this helps, good luck