... ones in the side of polluted resistance, clean itself, acid and alkal resistance.Nano principle: We coat the ... adhesionNo visual changeNitric acid(70% w/w) resistance,clour change E(Hunter)1.3Not more than ... , anti-alkali, solvent resistance. Durable: It is more durable,weather resistance,temperature resistance,friction resistance,pollution resistance,aging resistance comparing with traditional PVDF ...