ksungela
Member
So I bought some white Merka guide coat to help in the cutting/buffing of my black car. I applied it to a panel that was wet sanded with 800 grit. I worked it into the panel real good to the point of not being able to wipe the guide coat off with my dry hand. I proceeded to wet sand with 1000 (and tried going right to 1500), but the guide coat just washed off before being actually sanded out of the 800 grit scratches. Is guide coat only for coarser grit scratches like 600 or less?