Grease

[PlainName]

Where would that be used on a crossbow?

[jpanhalt]

Modern crossbows are complex:
[plain]https://www.youtube.com/watch?v=0WfSXzQohlE [/plain]

I let a friend hunt deer on woods around my home.  There are several different seasons for different ages of hunter and weapons.  I was amazed at the modern crossbow's accuracy and power.  I suspect he has harvested more deer with that than with a rifle or musket.  BTW, he hunts mainly for food.  Any trophies are largely incidental with years in between.  I have known him to track a particular buck for 3 years or more before getting it.

[Gyro]

I read somewhere that one mustn’t use silicone on contacts that can arc (like in switches and connectors that are mated/unmated under load), because arcing causes it to decompose to abrasive  silicon carbide, causing subsequent contact damage.

No you don't want silicone anywhere near arcing contacts. I think it's tough and insulating silicate layers that form but I wouldn't be surprised if there was some carbide formation in things like motor brush gear.

I remember allowing the neighbor's kids to 'valet' the inside of one of my cars many years back. It took me ages to get the indicator and wiper switch stalks etc. working reliably again!

[5U4GB]

Where would that be used on a crossbow?

On the rails that the bolt runs on, and on the strings, which are typically made up of multiple synthetic fibres like dacron and for which the "wax" reduces wear and tear.

[PlainName]

Learn something new every day