Sikaflex Tooling Agent N was used as per instructions to achieve the final smooth finish; it was a godsend and used in conjunction with a rubber gloved finger, all very simple. The technical Data sheets were down loaded from the internet on all the chemicals and were laid out in order These sheets give all the timings for drying and tack times, they are most helpful. The timmings were recorded on them, this worked very well; no panic here.