I just finished Rock Guarding my diamond plate toolbox, it turned out too look really good. Basically the steps i did are as followed
scuffed up with scotch pad as well as sand paper
wiped down with tack cloth
then rock guarded (spray can from Canadian tire) 3 coats
Now this actually turned out really good an looks amazing i think, but im now thinking bout doing my running boards. my issue is that i believe they are made of chromed aluminium? Are you even able to paint them, i worried i wont be able to scuff it up well enough that the rock guard will stick for a long period of time before it flakes. any ideas???