I too have been using this product for years. I find it perfect for sealing most of my art work, created birthday cards etc. A little tip my clever husband has taught me is to, when finished, tip the can upside down and spray until the nossle runs clear.

I have been using these varnishes for years but this time I am not happy. This won't spray evenly. It's keeps spluttering. I unfortunately decided to varnish a big painting (not expecting anything to go wrong) and so far I have applied four coats to try and even out the dull bits, but the finish is still patchy. I have cleaned the nozzle and it makes no difference.