"I spent a good couple of hours painting this onto a wooden bench. I followed the instructions (2 coats) and left it 24 hours to dry. I then went back, and poured some water over the bench to see if it was indeed waterproof. The water bubbled, but, quickly turned a milky white colour. I wiped the water off, but it had left milky whiye staining to the wood.... I have no confidence I can now leave this out in the rain as the finish of the bench would be ruined. How on earth can I rectify this now.... Very disappointed and worried that my bench is now ruined by the use of this product. Screwfix, can you help??"