Hi Craig, I'm so incredibly sorry I didn't have my email notifications on, so I was a tad late. I am using UV-proof resin, but I will get some different resin from a windsurfing shop. I am not using quartz sand but acrylic dust. I will see if I can find some sand. Do you have any idea what particle size sand to use? Also, something this bizarre that I have ponded, I have seen some of the old blokes use sugar so it makes me think that it is the impression that the particle leaves rather than the particle getting stuck to the board would that be fair to say?