Chrome gas door peeling again.

[Intercooled]

Anyone having any triouble with this. I got my original one replaced last year on warrenty because it bubbled and peeled. just last night when i was filling up I noticed the new one was peeling again. I think the cover is a cheap cast material. they seem to start peeling during the winter with all salt and crap on the road and truck. i try my best to keep the H2 fairly clean but you can only do so much during the winter. nyhow I was thinking about changing it out to a powder coated black one. Does powder coating resist the elements better? I was looking at this one. Anyone have any other suggestions.
http://www.hummerstuff.com/catalog/d...roduct_id=6881