Chemical Stain Etched On The Hood

i received a text message from one of my buddy last 2 days ago while i was at home. he mentioned that his car front hood kena some stain that cannot be removed by hand polishing, then he asked for my help immediately through message, so i invited him to my place to have a look.



at 1st i thought it was white cement stain but closely inspect i was wrong. i tried scratch lightly but it didnt came off, and then i use M105 with a applicator pad but still cant be removed. so i assume this is a chemical stain that alredi etched on the paint. take a closer look..



wet sanding begin since i have no other choice, start/finish with 2000grit. M105 with a cutting pad and finishing with OHP polishing with polishing pad and then protected with opti-seal and OCW.






close up





finally my buddy have relief when the stain is gone, no more struggling and headache and leave with a happy smile on his face. i feel happy for him too, maybe in a opposite way. hes happy cause the stain is gone, im happy cause i rescued another ride on that night. cheers!