<div style="FONT-FAMILY: Times New Roman; COLOR: rgb(0,0,0); FONT-SIZE: 16px"><DIV>Hi All;</DIV><DIV>I am about to do some POR15 application.&nbsp; I have 2 very different surfaces.&nbsp; I found, to my great surprise, that when the bus was painted, the sliding door mechanism cover was not removed and I have a layer of rust over that area, including the rail the roller runs in.&nbsp; The other surface is a new rear (standard, not Rocky Mtn) bumper.&nbsp; I want to put the POR 15 on the inside of the bumper before installation.</DIV><DIV>My question is should I use Metal Ready on either one of these surfaces before applying the POR?&nbsp; As a matter of face, how should I prep both of these surfaces before applying the POR?&nbsp;&nbsp;I am&nbsp;would like&nbsp;to start this project today,&nbsp;so any input would be appreciated.&nbsp;</DIV><DIV>&nbsp;</DIV><DIV>Thanks;</DIV><DIV>Dave B.</DIV></div>