Your pellet grill is constructed of high-quality steel, and will likely need to be touched up or repainted at some point.
The good news is that it is an easy task, and the grill will look great afterwards. Click Here for instructions for painting your pellet grill, including which type of paint to use.
You can also check out your model's latest owner's manual for the latest info.
And you may want to check out your grill's YouTube playlist for maintenance and service videos.