After applying and spending some time dragging the brake and turning the wheel I wiped off with a clean rag and made sure not to touch the rotors. I also tried leaving it on, both seemed to work well. I would say make sure you spend some time dragging the brake with the bike in the stand / upside down when you first apply it. Pink stuff drys fairly quickly, what’s left will flake off quickly once you are out on the road.
You can purchase squeal out on Amazon uk for £55 vs £1.50 for a jar of pink stuff. I have to stop saying pink stuff…let us know how you get on.