Welcome to the board! Since this is your first post you get a pass on not using your search function. Using 'Cladding Treatment' as the search criteria you'll find these threads to get you started:

http://www.vehicross.info/forums/sho...ding+treatment

http://www.vehicross.info/forums/sho...ding+treatment

http://www.vehicross.info/forums/sho...ding+treatment