I didn't bother at first with protekta coat at first, 6 months later I bought it from corwoods, nice and blue now. It is worth it mate, and I think it cost £65+ vat
Just put a nice thick coat on with a brush, and repeat next day again.
Good stuff and not at £650 ??
U can put a few layers down but it's not goin to be smooth, quite the opposite, nice and ruff