Sidewayskiwi
Spitting tacks 
Rustoleum spray can paint 
Don't know what they've done it used to be so good 
All surfaces prepared with minwax
Orange if its not reacting and eating through minwax to melt your foam its pulling off with masking tape (lowest adhesion type and reduced further)
Orange eats the black ,blue just reacts as soon as you spray on the next colour no matter what order 
Orange leeches through any other colour now
Lost my FRC F16mk2 large build to paint reaction
Orange on first next day blue detail instant reaction heat melting water wouldn't stop it just kept bubbling --- the whole plane never even got to maiden it
Contacted Rustoleum -- not in the slightest bit interested 
Total shit really 
Water based here we come
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solentlife
Blame Climate Change .... the propellants for so many spray products have changed over recent years. Many are petroleum based now - which eats foam ... just as sure as the solvent type did.

I have a whole box of Acrylic cans that were in old form fine on EPO / Depron etc.  Now I have to spray in very thin 'dusting' layers from way back away from model to stop damage to the foam ...

I've even had to rethink my waterproofing water based poster paints. Previously - I would paint with the poster paints and then once fully dry - spray with clear acrylic .... not now. If I try it now - the acrylic gets through the poster paint .... bham .... 
So now I use clear Varnish .... Matt and Semi Matt.
I'll fly anything if I can launch it ! Youtube : solentlifeuk
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TomMonton
In all my painting work on planes I've always had issues with paint pulling loose under tape too.  It's only worse with acrylics btw.

I normally use plain paper, even newspaper as a masking tape. Then tape over the paper and pin to hold into place.  The only real trick to doing it that way is ...you need to blow your medium propellant over the seam the right direction so not to blow it up and squirt paint up under the seam. I have done this using rattle can paint or with using an airbrush.

It works but you just need to be careful and more measured in the application. Prep time now becomes the more difficult part of putting some color on your foam too.

I've only applied tape to foam directly if that given area is supposed to be white (not painted).

Then when happy I finish with a couple layers of water based rattle can varnish.

Only a suggestion.
Fly like your mad at it.
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TomMonton
Couple of examples with acrylics.

2019122011460200.jpg 

2019122011462200.jpg 
Fly like your mad at it.
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Wildthing
TomMonton wrote:
Couple of examples with acrylics.

2019122011460200.jpg 

2019122011462200.jpg 
I see dust on them !!!!!!😱😱😱😱😱😱😱
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JTiger
Wildthing wrote:
I see dust on them !!!!!!😱😱😱😱😱😱😱


SHAME!!!

*hastily covers pile of planes that haven't flown in months*
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Sidewayskiwi
Being the irrepressible fiddler
Test minwax and paint in liquid form--
The two separated ---
Well that's a game changer
Rustoleum on bare depron 
Light dusting no problems 
Load up the paint -- munch munch depron doesn't like that
Rustoleum on DTF no issues at all (even with minwax)
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