Yep i have done Tillio`s for him, one of the worst problems is all the silecone and dash shine shite that has been used over the years.

All i done was to wash the dash with thinners to try and remove the shite, then rub it down, i used 240 DA discs and red scotch brites.

Then a coat of adheision promoter, then 3-4 coats of 2k primer with 5-10% of flex additive added to that.

Then rub the primer down with 600 wet and dry, then your top coat.

It is not an easy job!