Glue for PVC?

[snargmcnarf]

Whats the best glue for clear sheets of PVC?

This is for the PVC cover on a 4 tier mini greenhouse.
I am turning one into a cloch and some mods being made.
A contact adhesive seemed like a good idea but the type tried doesnt do PVC. Power Duck tape (clear) seems good and supposed to be waterproof - but not sure how true that would be in all weathers.
Thanks for any answer

[heathfield]

I used some 'Ultratape Heavy Duty' spray adhesive on a damp proof membrane plastic sheet and it has worked a treat. Scroll down here.

[snargmcnarf]

Thanks for that answer. I can check that out.
Prompted me to check with a Maplins catalogue where they have something that may be similar - thats Servisol Adhesive 120 aerosol glue, may be similar.

[ianmunt]

Try a builders merchant for PVC pipe adhesive

[snargmcnarf]

Thanks for that.