上灰後上白得唔得?
同埋點解d白色噴個時變左粉紅色???

點解d白色噴個時變左粉紅色???

ans:
1. you have some red paints mixed with white paint
2. sth wrong with your eyes

得，不過要上多幾層先可以蓋到d灰色，會唔會支筆有紅色未洗乾淨！

first of all, please watch your manners, because people may not help u

for the first question : u should get a layer of white , yes.
second, do u use a spray work gun?  It meybe the reason that u havent cleaned your spray gun

上白既就上多幾層就得la~

明白...嘗試中...唔該哂你地啊...可能真係洗唔清d紅色...