Parker Jotter stainless steel slippery solution

I absolutely love the aesthetics of the Parker jotter stainless steel. I find the grip of the pen to be a let down to its beauty.

I know of a few shavers who apply alum block to their hands or handle of a razor to prevent slipping. Could the same not apply to the parker jotter stainless steel?

I want to try it but was unsure if alum would be corrosive and damage the pen.

Opinons welcome

Alum is a salt, so yeah, probably corrosive....