spar urethane re-application

[BillZ]

I am preparing to add some spar urethane to the our woodie. The original finish is beginning to show signs of wear. There is a thin line of clear caulk that I think is silicone where the roof meets the the trim at the side edge. There is also some of the same caulk in a few other places. I am assuming that this should be removed before applying more finish. What would be the best way to remove it without scratching up the wood?

Is it possible that I could get away with leaving it and applying urethane to the edge of the caulk? The caulk is still in good condition.

[nevadatear]

Silicone caulk will repel any finish application. If you do not remove it, the finish will just slide away as you apply it. I don't have a good way to remove it other than scraping and sanding. Heating it may help, and there is a commercial silicone remover product available at big box stores.