Thanks again Grendels, you're a life saver (Well a paint saver. A savior of paint).

PpigP (I'm calling you this now, easier to type), that stuff looks quite good. It seems it was made illegal here in the EU a couple of years back, but it's back on the market after they revised the formula. £3.50 per can (they look quite small though), isn't too steep.

Cheers all. I might have a photo to upload tonight, if I get a chance.