We advise rinsing the tank with acetone or gun wash/cellulose thinners, all safety procedures should be adhered to. VENT THE TANK WHILE CURING AND DO NOT FILL WITH PETROL UNTIL FULLY CURED ! Pour the small containerFLOWLINER ARMOUR COAT B into the opened tin ofFLOWLINER ARMOUR COAT A and mix theFLOWLINER together for five minutes.