Valet Pro have recently released a new product for cleaning wheels called Dragon's Breath, it's a ferrous contamination remover (similar to IronX) but not quite as aggressive. It does an excellent job of cleaning wheels and is safe on all surfaces:
http://www.elitecarcare.co.uk/advanced_search_result.php?keywords=dragon
In terms of protection I would recommend Gtechniq C5, it works fine on matt finished alloys and is ultra-durable:
http://www.elitecarcare.co.uk/gtechniq-c5-wheel-armour-15ml.php
Hope this helps.
Alex
http://www.elitecarcare.co.uk/advanced_search_result.php?keywords=dragon
In terms of protection I would recommend Gtechniq C5, it works fine on matt finished alloys and is ultra-durable:
http://www.elitecarcare.co.uk/gtechniq-c5-wheel-armour-15ml.php
Hope this helps.
Alex