Windscreen bonding leak - suitable sealant?

[Maelstrom666]

Morning all,

The bonded windscreen in my fiesta ST (mk6) is leaking around the heating element wiring. Took an age to find the leak, seems to be a gap in the sealant that I need to plug up and seal.

So.... Poylurethane? Butyl? Anyone had success with a UK available brand they can recommend?

I also assume I need to do this from the outside and the inside, so need to pry out the rubber trim - does it go back in through pressure or does it need bonding back in place after?


Cheers!

[steveo3002]

id say the screen want cutting out and re sealing

[CAPP0]

Search for "Captain Tolley's Creeping Crack Seal" - sounds weird but I'm not winding you up I promise! Uses capillary action to leach into the gaps in the seal. If you start putting additional sealant around the edges it will look awful.

[Maelstrom666]

Have seen that stuff, still recommended even if I know exactly where the leak is (I can see it!)?

Rebonding is the best solution I'm sure, but probably be selling this thing this year so I want a half decent repair, but without costing the earth.

[CAPP0]

I think it's only for hairline splits, if you can see a gap then prob no good.

[Maelstrom666]

CAPP0 said:

I think it's only for hairline splits, if you can see a gap then prob no good.

Oh ok, thanks - I don't know how big the gap is inside tbh, I assume a poorly prepped screen left a channel in the sealant - I can just see cavern above the heating wires with drips coming out.

The leak sealer stuff something I'll keep in mind for panel crevices etc though so thanks!

[Maelstrom666]

On a related note, can these rubber seals be removed and replaced without damaging them? The leak is about 15cm down (i.e. the seal in bottom of pic).