Treatment or protectant advice

[threpwood]

Hi all,

Some questions if I may, please:

1. What stuff should I use or what do you usually use to protect or prolong the lifespan of the weather sealant (the black rubber that seals between the window and outside air/water, etc)?

2. What stuff should I use or what do you usually use to protect the windshield wiper (the black painted metal) from rust, acid rain etc?

I tried to do a search about this topic but I couldn't seem to find it.

Any advice is much appreciated.

Threpwood