I used magic pen to cover up the nub mark. Well, can't cover it completely. But it's damn cheap. Only RM7 for 12 magic pen 

Don't be surprise, I'm doing aircraft engineering and we always use these terms...
Yes, you can use Anchor paint or other industrial spray cans for plastic although not really recommended because it might make your plastic brittle. But it would be a good alternative for Tamiya spray cans because Tamiya was damn expensive, buy a beginner airbrush set obviously cheaper. My advice is stay away from Tamiya spray cans if you want to save cost. If you don't know how to utilize your money then you can buy it, because with that money I will buy airbrush set.

But then, spray cans and airbrush were just tools, it depends on your need. If you just started painting, you may use spray cans to see whether you like to custom colour or not, if you really like and will do it frequently or you will get into this hobby seriously then I would recommend you to buy an Airbrush set because you can do various type of painting effect with it which spray can can't do or can't achieve same level result.

There are so many hobby paint beside Tamiya, and a lot of modelers using them as well, do it seem weird? Obviously no...  If someone laugh at you if you use spray cans, then you may ask them to show you better paint job that they have did or trying to use spray cans to achieve same effect as yours. But ignore them would be better although this is not my style. If they laugh at your brand, you may ask them to sponsor you Hobby brand spray cans or maybe a high end airbrush set with spare tank. Those modeler who like laugh at other people usually don't have a very very nice skill, they feel proud with their intermediate level in this hobby, there are more skillful modelers that would like to share the proper information in this hobby and you should learn from them.
Cheers...

Wow ....really thx a lot ...I really learn a lot of thing ...,ya the Tamiya paint really a bit expensive ...that y I plan to use other paint ,that may b also can paint out nice color like Tamiya paint ....I am try my best to paint my first gundam ..to paint it nicely ...thx a lot sifu ....hehe

Have try the Tamiya spray cans once, it was nice finish but not worth the cost. It barely last to spray on MG unicorn innerframe.

Yea obviously not worth, if spray cans just use cheapo will be enough. But still airbrush set will last longer and save cost, so I planning to get one as well but not able to buy a high end set now.

By high end set you mean the compressor with tank set ?

Have try the Tamiya spray cans once, it was nice finish but not worth the cost. It barely last to spray on MG unicorn innerframe.

Tamiya sprays are very nice! But it costs around 20 ringgit for each can. The finish is very decent. One MG, I will probably use about 2 cans... Pretty expensive. Just borrowed an AB from a friend and bought some paints. Hopefully it turns out to be better than the spray cans.

Ya... but without spare tank also quite expensive.

You talking about the branded stuff right because china made turtle compressor set just around rm 200.

Just one thing to note even with the tank, it will broke down if under constant heavy use. Like mine broke down a few months ago  , now i put a fan directly on it so it cool down faster.

Probably when i finish my painting on my two Jesta but i get the AB set and hobby stuff from tytroum in the forum sale section

Can anyone advice if my understanding is correct.

I paint silver coat first on a plastic surface than I paint over the silver coat with clear dark blue coat on top of it, I will be able to get a metallic like dark blue finish?

I am thinking of doing a metallic dark blue titan finish for my Hi Nu.