Re-blasted the front pipe, then coated it with flameproof primer and top coat curing each coat with a hot air gun.
Still not convienced about the VHT paint. When the bike was running it started to produce tiny bubbles and smoked like crazy, but did stay on the pipe. I checked the temp of the pipe with a thermometer and when running it only hit 320c way below the 1000c the paint can cope with.
Still have to repaint the mid pipe, as that discoloured and will look for an alternative paint in the future.