How to glue heater wire to rear windscreen

[effingpot]

My rear windscreen was removed for a respray job and the garage yanked the wires off that connect to the demister wires.
They "soldered" them back on using a windscreen specialist but when I popped open the rear window to take a look one dropped off again.
I think I'll stick it on myself with some electrical glue but don't know what product to get.
I did look at wire glue but it says it's not suitable.
Any suggestions?
Thanks
Mike

[Glassman]

Welcome to PH.

Generally, it is do-able but dependent on a couple of things.

Can you post up an image of it?

[PositronicRay]

Thread hijack.

Hi Glassman, I've just put the hardtop onto my Merc SL for the winter. The rear screen demister does not work, the top two bars clear but take an age, is this something I can DIY?
I've got power at the connector to the hardtop but havn't checked anything else.

[Doctor Volt]

Once you are sure all is OK with the supply to the HRW you can buy high conductivity paint to repair any breaks you find in the elements, clean with alcohol mask off above and below the area of the breaks and apply the paint

Apologies for hijacking before Glassman replies

Cheers

Doctor Volt

[shoehorn]

I`ve soldered a few back on just using a regular-ish (100W)soldering iron and proper old lead solder.

[daveenty]

I bought some "conductive glue" from the bay of dreams.

Unfortunately it nether conducted nor stuck so, after cleaning all the mess off, I ended up super gluing the connector back on and lashing a load of conductive paint on it. Still doesn't seem to be working though my meter says that it's making a connection, so more conductive paint will be put on it as a last ditch attempt before buying a s/hand rear window.

[effingpot]

Thanks - I finally had a chance to take a photo - it's a grey, rainy day so not that clear.



The yellow blob top right is where the connector was before it was yanked off. it's where I need to stick it back.

the Silver thing centre bottom is the connector itself. There is a decent surface to get some glue on but it will sticking mostly to glass.

Basically I need a good bond and obviously the electrical connection to work. the wire glue I was going to get is not suitable so need a different solution.

Suggestions welcome
thanks
Mike

[Glassman]

That looks like some of the coating (on the glass) has been stripped. I would say a good contact adhesive (a conductive one if poss) to stick it back on, and then bridge/fill the gaps with a conductive paint (silver, as in Ag)

[Kinky]

Glassman said:

That looks like some of the coating (on the glass) has been stripped. I would say a good contact adhesive (a conductive one if poss) to stick it back on, and then bridge/fill the gaps with a conductive paint (silver, as in Ag)

Paul,

Do you have any spare adhesive and conductive paint, as per above, that I could use? I'll be happy to give Mike a hand to sort it

[Glassman]

It's not something I keep TBH (I hear arts and crafts/model shops are good for this sort of stuff).

Looking at the image again, if the cable will allow it, there may still be a chance to reposition the tab with a bit of solder.

[Kinky]

Thanks Paul

Hope all is well

[Glassman]

Kinky said:

Thanks Paul

Hope all is well

It was on Saturday - had a Leo Sayer at the Porterhouse in Dublin. Watched the game and had a drink (to be sociable).

Edited by Glassman on Monday 24th November 21:38

[Kinky]

I hope it was more than the one?

[Glassman]

...of each

[paintman]

Try entering 'conductive glue' into Google and ebay. Surprised at what comes up.

[Doctor Volt]

Good Photo of the problem

As Glassman has already pointed out -
1)The damage is repairable, first you will need to clean up an area with very fine wet and dry paper or a fine abrasive paste followed by cleaning with Alcohol, pull the wire out of the loom to gain some extra length or extend the wire to reach the area you are going to solder to

2)Clean the terminal on both sides and coat its surfaces with new solder applying a larger ammount of solder to the side that contacts the screen

3)Park your vehicle in a warmish area and warm the window up with a hairdryer, you dont want to be soldering to a cold screen as it may burst due to the hotspot

4) Apply a very thin coat of flux to the area to be soldered

5) Wrap cardboard around the part of the terminal that the wire connects to and grab it with pointed pliers, the cardboard will prevent the pliers taking the heat away from the soldering iron

6) Use a medium sized soldering iron (About 1 Centimeter Wide), hold the terminal in place and solder it back on by applying heat from the iron to the opposite side of the terminal

You need a steady hand to do this job

Good luck

Doctor Volt

[heebeegeetee]

Useful info, thanks very much.