![How should I go about applying the rock guard stuff, also the places that have a bit of metal exposed and have started to surface rust, should I sand to bear metal How should I go about applying the rock guard stuff, also the places that have a bit of metal exposed and have started to surface rust, should I sand to bear metal](https://i.redd.it/7iaipok4563b1.jpg)
How should I go about applying the rock guard stuff, also the places that have a bit of metal exposed and have started to surface rust, should I sand to bear metal
![Duplicolor Rocker Guard Coating: Clear, Aerosol, Resist Nicks And Chips on Lower Panels, Textured, 14.5 Oz RGA100 - Advance Auto Parts Duplicolor Rocker Guard Coating: Clear, Aerosol, Resist Nicks And Chips on Lower Panels, Textured, 14.5 Oz RGA100 - Advance Auto Parts](https://shop.advanceautoparts.com/wcsstore/CVWEB/staticproductimage/3278/large/11466116_dpl_rga100_pri_larg.jpg)
Duplicolor Rocker Guard Coating: Clear, Aerosol, Resist Nicks And Chips on Lower Panels, Textured, 14.5 Oz RGA100 - Advance Auto Parts
![Dominion Sure Seal DOM-SVG124 Gravel Guard 1, Rocker Panel Coating - 24 Oz., Aerosol : Automotive - Amazon.com Dominion Sure Seal DOM-SVG124 Gravel Guard 1, Rocker Panel Coating - 24 Oz., Aerosol : Automotive - Amazon.com](https://m.media-amazon.com/images/I/31KLBHp4B2L._AC_UF894,1000_QL80_.jpg)