problems with acrylic paint adhesion

Acrylics can be tempermental, in addition resin has it's own painting process.  I haven't used AK yet, but resin should always be cleaned thorougly prior to use.  I typically take it a step further and provide a little light sanding to give the surface some teeth.  Then I throw down a coat of primer.  For this I like Mr. Surfacer.  This should help.  I've also found that cutting the paint with lacquer thinner gives it a bit more bite.  I don't know if that's compatible with AK, but it works with Tamiya and Gunze.

Take a look at the paint remaining on the masking tape. Is the underside of it (the part you see) primer color or finish color. It's extremely rare where the color coat will separate from the primer. Usually it's the primer that comes loose, exposing the bare plastic/ resin.

I'm in the process of using AK for the first time, so I'm interested in your results. I'm using Tamiya white spray can primer.

I use Gunze's MrResin Primer to prime resin parts. I don't know if it works better than the primers mentioned above or not. All I know is I've not had a problem with acrylics over the top coming up. Yet.

You need to stir the paints not just shake. Putting an stainless steel nut in the bottle as an agitator helps too. You need to get all the stuff at the bottom thoroughly mixed in.

Tojo72

I had a real problem with AK could never get them to work,but yes acrylics will benefit from a good primer like Tamiya or Mr Surfacer

 

You had problems in what way Tojo ?

I watched a video where a guy seemed to do well with them till he got to the clear coat which wanted to fog and look basically white, till he thinned it properly. The colors he experimented with different thinners and both lacquer thinner ( I think he had Mr Leveling thinner) and AK's own thinner seemed to work well.

oldermodelguy

 

 

Tojo72

I had a real problem with AK could never get them to work,but yes acrylics will benefit from a good primer like Tamiya or Mr Surfacer

 

 

 

 

You had problems in what way Tojo ?

I watched a video where a guy seemed to do well with them till he got to the clear coat which wanted to fog and look basically white, till he thinned it properly. The colors he experimented with different thinners and both lacquer thinner ( I think he had Mr Leveling thinner) and AK's own thinner seemed to work well.

 

I had the Russian colors set,I couldn't get it to stick,it beaded up,maybe didnt mix enough,not sure,was a few years ago.