唔該幫下我

事實上Marker既日文說明已經講左唔可以同其他顏色既Marker一齊用。
要溝色一定要用支裝既水性油,而且就算係用水性油,你都要跟住模型manual既建議份量去溝,莫講話就咁用Marker溝...
等第一種色風干後才上第二種來溝出第三種色,
雖然可以避免整污糟Marker既筆咀,但d油就會變得好厚,而且溝出黎既效果一定唔好...情況就好似玩廣告彩咁,等底色乾先上第二隻色,效果未必同預期一樣。
你都係用火酒或者thinner洗左依家d油先啦。
如果你唔想模型底色影響,就要先噴灰(或者叫上畢地),分噴罐裝同手油既支裝,但後者要自己稀釋先(3份灰加1份thinner)。
噴消光油其實唔駛隔兩呎咁遠,20-30cm就夠,只需要噴1-2層就夠,否則過度消光會令表面形成一層白膜。消光油係一般模型舖都可以買到,噴罐裝,分半消光(semi-gloss)同全消光(flat)。

Not a problem, since no photo, hard to say.

But you need to do THIN coating, NEVER NEVER do thick coating,
it will dissolve the background color.

you need to have background paint, mostly gray or black or white depends on the color
you used.

you need to do thin coating like 2 feet away from the object and spray evenly.
let it dry first then do another coat.

Bring your gundam to some model shop that display gundam, and they will diagnose
what is the best solution.

alien