OVER-TOP RANGE : New formulations creamier mix consistency HARD GRADE N°1: Floury gelcoat restorer titanium based HARD GRADE is a very dense paste for gelcoat restoration. HARD GRADE enables the floury looking surface of gelcoat to be cleaned off by rubbing gently without scratching. HARD GRADE contains silica particles. Its formula improves the action of scrubbing and strengthens in depth the gelcoat. Coverage= 10-12m2 / 700 grs