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Pete asked: Does anyone know if you can get anything to repair damaged strips in demisters - some sort of conductive paint or similar? Mine only has two functioning strips now, although one of the others has a curious 'hot spot'. It just clears a small circle, up to about 5cm across, presumably part of the strip has gone high resistance so is causing a lot of heating at that spot, while the rest of it hardly gets warm. |
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Drew's advice: Finding the broken spots can be a bit hard they are ususally too small to see. To find the spots get a volt meter, hook the neg of the meter to the chassis, then run + probe along the filament untill the voltage drops to zero. mark the spot on the glass with a pen. Get the conductive paint (sold by Maplin, Tandy (Radio Shack) ) and paint a tiny ammount by your pen marks. Repeat on each fillament as they often have more than one break. The paint is Silver loaded conductive paint, it comes in tiny bottles. It evaporates rather quickly, and is quite expensive for the quantity you get. Hence finding the spots before you start. Paul's advice: I had 2 lines not working when I bought my current car - I couldn't find and peel off strips, so I bought a tin of demist repair paint from Halfords (UK) - cost a bomb, but I needed to see what was behind me! It's really difficult to put on ( free movement not available!). They give you a template but that was too big. The best way I found to do it was to take 2 car window stickers (the ones that peel off and on easily - and use them as a template. As long as they're firmly pressed down they provide an excellent template - no bleeding and no movement - just make sure that when you peel it off, you pull it in a direction that leaves the paint on the screen. My repaired ones don't demist in as straight lines as the rest, but they do the job and that's what matters. Hope this helps Paul (Dixy) Some links to demister repair kits: |