I just tried giving you a detailed explanation but my computer just dumped it all!

Basically you want to try to wash the parts in a warm, soapy water - mild dish soap will do. After the parts have dried, try the paint again. Also, using a primer before painting will help the paint adhere better. Regardless of whether it's resin or plastic, the parts need to be treated before painting. If you handle the plastic after washing, wipe it down with some Isopropyl Alcohol, let dry then paint.

I hope this helps. Anybody else with ideas?

sonofajugpilot

I just tried giving you a detailed explanation but my computer just dumped it all!

Basically you want to try to wash the parts in a warm, soapy water - mild dish soap will do. After the parts have dried, try the paint again. Also, using a primer before painting will help the paint adhere better. Regardless of whether it's resin or plastic, the parts need to be treated before painting. If you handle the plastic after washing, wipe it down with some Isopropyl Alcohol, let dry then paint.

I hope this helps. Anybody else with ideas?

Good advice here, washing the model is always a good idea. And a primer coat can help the paint to stick though I generally don't use one myself. 

This should do the trick if you're using the hard type plastic, if it's the soft rubbery stuff this might not work though from looking at the link I can't imagine it would be the soft material. 

Okay guys, cool. it's definitely hard plastic. But what kinda primer should I use? and will a primer and paint soften the panel lines on the piece? And of course will I be able to paint with a brush overtop of these painted parts in a different color?

And just to understand, what is the rubbing alchohol for? getting grease off the piece from my fingers?

And I was planning on doing panel lines with the advanced technique shown later in this video:

www.youtube.com/watch

The only reason I want to do the panel wash technique is because I can't seem to find any fine tip markers here in Canada like he shows. Anyone got some other options to suggest?

The primer will allow you to see any defects prior to painting such as seem lines, scratches,etc. I use Tamiya paints so Tamiya primer goes on my models. If read of modelers using auto primer out of a spray can but I'm personally not familiar with brands. The use of primer is a choice, really. It just allows better paint adheshion. If you do choose to use a primer (Testors, Mr. Surfacer, Tamiya, etc) you can paint over it once dry. Go ahead and use different colors and yes, a paint brush is allowable just allow the previous paint to dry a day or so before continuing.

As for the rubbing alcohol - yes, it is to help remove finger oils on the parts. Especially after you've spent the time washing them under warm, soapy water.

I havent watched the video you liked but I can recommend a product called The Detailer - Ready To Use Washes. They come in different shades of grey and browns and are great for panel lines. Check them out at www.the detailer.net. I use this stuff and it's really nice.

Primer is definitely a good idea.  I tend to use Tamiya because some other types aren't as effective with all likely kit materials ( styrene, ABS, or vinyl ).

I use Model Master paints but ALWAYS Tamiya primer. It's the smoothest & best. Not cheep but well worth it.