Technical Rustoleum question

Simple question, What prep is necessary to re-coat with rustoleum over rustoleum after say 6 months?
( thinned with acetone)

 

Clean it really good and use 320 to 400 grit sandpaper to scuff it and clean again and spray it. If your using the same color it will cover very well if your changing colors might take a little more to cover depending on the colors your using.


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Thank You

 

Be careful on the first coat. rustoleum likes to wrinkle sometimes
I used a red scuff pad last time i sprayed that over itself