I have dark dots on my faded vanilla gel coat of my 70 sunfish. I'm trying to whiten it up and remove the dots. I've tried bleach, toilet bowl cleaner and wet sanding with 220 on a DA (random orbital) sander. Somewhere under there is bright white color. Should go to a lower grit or is there something better?
Pic attached is dots and fading on the right and where a sticker was on the left.
Pic attached is dots and fading on the right and where a sticker was on the left.