Does weather, such as rain, snow, cold or heat have significant impact on corrosion or the friction coefficient of slide plates?

For carbonsteel backed PTFE slide plates, if they are exposed to excessive moisture can corrodeif they are not galvanized or painted. However, if using stainless steel slideplates then weather is not an issue.

43 Inch Angled Pipe Shoes with PTFE, 25% Glass Filled, Slide Plates
Angled Pipe Shoes with PTFE Slide Plates