How To: C15a Wire-3 restoration

[Bob Carriere]

Do all your welding, patching, grinding and JB, etc then do the sand blast.

Be carefull around the JB.... may need to lask it off or the sand will take it away faster than the surrounding steel. Even smal bolt holes welded and grinded.... get to shinny for the POR to really bind to the surface....... watch body oil from your fingers or dirty leather gloves...use blue ot thicker black nitrile and change as often as necessary. You may wabt to lower the pressure on the blaster and use the fine with sand from TSC so as not to be too agressive. Don't forget to spray a litght coat of paint prep aka Phosphoric acid and let air dry

The dilemma is we use the finest flap wheels to dress up butt welds to a smooth mirror like finish than we need to roughen it up for the POR....Duh!!!!

You are on the right track.