What happens if we use wurth rust remover spray on a car window rubber beading?

I own a honda city, I put that on a honda othorised service centre about a problem with driver's side Window glass, it was not rising up properly, they used wurth rust off spray in the rubber beading, for smooth movement, but later after some days, the rubber is getting weaker and got cut

I do not understand the concern. Wurth Rost main ingredient is PTFE, other name is Teflon, a slippery lubricant. PTFE if spraying on the window rubber will most likely remain there until being remove/ clean by other products like silicon remover etc that are widely available at your auto part stores.

Anyway the main purpose of the Wurth Rost remover is to… Remove rust. It's also a lubricant but why using it? There are tons of other lubricants serve much better for lubricate any window channel.

Your Honda City, if the window operation is slow to go up or down, look closer to the window regulator adjustment/ alignment or the power window motor is weak/ getting old. The spray has nothing to do with the destruction of the "Window rubber"