I've never seen printed instructions but my first batch came with a link to a video on the website. Basically, you dilute to a point where the solution is quite runny but if you lift your stirrer it still "holds", i.e. it pours of in a stream and not in drops. This seems to be about 40%. I too apply with a roller. I initially put it on quite heavily and then spend a goodly amount of time spreading it out so that the final coat is always quite thin. I have tried two coats and it was a disaster because it looks obviously uneven, even after a lot of rolling, in terms of shine. Two coats are shinier than one, it seems. In any case, a little goes a long away and it is clearly enough because I have experimented and, done like this, I can put a print under the tap and just watch the water roll off! It must be right. I suppose you are just going to have to experiment in the long term. In the meantime, I hope the silicon film rescues you. I can imagine the sheer frustration you must be feeling!
