ebay broonster, or some merchants.
Out of everything I have ever tried, the best thing i've used is Knauf cove adhesive.:RpS_thumbsup: Stays workable for 2hrs unlike gyproc 40mins.
Meaning you can bang more up instead of keep having to mix up another batch every 40 mins.
when measuring coving lets say you have a chinney breast section of 200cm and side reveals of 40cm do you cut lengths to same size or do you cut under/under those measurements? Also do you measure from top pf coving or the bottom??