Just finishing off a bathroom job and picked up some of the above when a found I didn't have any of my usual Dow Corning 785 on the van. Disaster! Just had to take off the shower surround as I couldn't stop the leaks and found that the Wickes stuff just hadn't gone off properly (yes I did leave it 24 hours). Only bonus was that it cleaned off (worryingly) easily. Anyone else used this stuff recently and had the same trouble? Thinking of buying some....be careful.