Water Repellent Glass

[runbly]

The side windows (and the rear window, not sure if it should be) have a water repellent coating. My LS is 8 years old and the water streams off the windows really well. Is this a life-long coating or will it have been topped up at a service with a Rain-X type product?

Just interested more than anything else. I used to own an Audi A2 which had a rear window split in two with a spoiler (think new Honda Civic) and this had a water repellent coating as there was no rear wiper. However the service schedule had a item that said something like "re-apply rear window rain repellent coating" at X miles/X months.

[SteveLS400]

The side windows (and the rear window, not sure if it should be) have a water repellent coating. My LS is 8 years old and the water streams off the windows really well. Is this a life-long coating or will it have been topped up at a service with a Rain-X type product?

Just interested more than anything else. I used to own an Audi A2 which had a rear window split in two with a spoiler (think new Honda Civic) and this had a water repellent coating as there was no rear wiper. However the service schedule had a item that said something like "re-apply rear window rain repellent coating" at X miles/X months.

Hi

I use Rain-Away on the windscreen (and the rest) which is brilliant especially when driving at night in the rain but it needs reapplying every couple of months so I would guess you have a permanant repellant.

Steve

[Nitmoi]

It is great when it goes on well but if it rains while you are applying it it leaves a reflective skin which makes for screen flare. It does need redoing a couple of times a year.

When it is going well I don't bother with the wipers as the rain just streams off.

[Parthiban]

I think it's a lifelong coating, I didn't realise the LS430 has them on the actual windows. My IS200 has it on the door mirrors, and actually says not to use anything on them to prevent damaging the coating.

Wondered how they do it, and why it isn't applied to all the windows as it would make life a lot easier.

[runbly]

I've tried Rain-x on previous cars and found it to be a bit distracting on the windscreen - the water droplets seem to smash on the windscreen into a haze, same with the wipers leavings a a mist behind. However useful on the side windows.

Anyway, as for my LS the side windows are certainly water repellent and the rear window appears to be the same but I didn't think that was as standard - although I do use a good wash/wax every time I was so it might be that. Oh well it works well enough whatever happens!