Trim Sheet Bends Easily without Risk of Cracking, Premium Low-Mar Topcoat Resists Cracking Chalking and Fading and Long Runs of Material with No Ripples, Waves or "Oil-Canning". Performance Metals Aluminum Trim Sheet is Faster, easier cutting and faster, easier installation. Alumalure 2000 finish holds its color and resists the toughest corrosive elements - even UV radiation and polluted air. Applied in a two-coat process, Alumalure 2000 is a combination of corrosion-inhibiting primer and an ultra-tough, low-mar topcoat.