07 XC70 rear window defogger

Post by **erikv11** » 14 Jan 2021, 17:14

Looks like there are four lines "burnt out" across the middle, see pic.

Anyone fixed this before on a P2 wagon, any tips?

Post by **abscate** » 14 Jan 2021, 18:37

I’ve bought a conductive paint that would fill in scratches and restore the function, but it’s been a few years

Post by **oragex** » 15 Jan 2021, 07:34

You will also need to find the locations where it's interrupted

Post by **SuperHerman** » 15 Jan 2021, 12:49

I have had success with the conductive paint. Just follow the directions and properly prepare and clean the area.

Post by **erikv11** » 17 Jan 2021, 17:07

Finished this job today, thanks folks for the input.

I used the Permatex conductive paint product. Found the nicks with a voltmeter while the grid was turned on. Each line had a separate nick, that's why 4 of them were out. Three nicks in a cluster on the driver's side were probably all due to the same piece of lumber or bed frame rail or whatever, then found a solo scratch over on the right side.

It took me two tries to get all of them done right. You need to paint the line wider than the original, to get good adherence to the window. I can live with that. I used masking tape to make the stencil, not the little stickers that came with the kit. And I set a space heater to 65 ˚F and put it inside the wagon to keep the windows lukewarm for a few hours. Methacrylate glues don't like cold temps. Still have a little paint left over after the four repairs, each one 2-3 cm long

Hopefully it will last!