I've got a new foam seal to replace , below the windscreen.

I just wanted to ask, the sealant above the windscreen, that seals the roof to the windscreen - Do I need to replace that with a Polyurethane (Sikoflex) type sealant?

What's the best way to break the seal above the windscreen.

last time i tried - it seemed a really well bonded!

Thanks

If it's bonded you'll need a long flexible blade those snap off stanley knives work quite well. Once you've made a start A length of cheese wire can be fed thru and you can finish it off with that.