i also used this product for my deck not cheap but bloody good and adhesion is second to none
Hi, I have used this protectakote twice now.The product itself is very good.But decks i did even following their advice and using their primer it didnt adhear just pealed off in sheets .So if you can get it to stick its great.It you use it its definately worth buying their thinners as it can get quite lumpy near the bottom of the cans
another fan of protectakote ....you do need to follow the advice from their website ....as PeterR says it can come off in sheets if its not preped right.
for transome hole filling you could also use Freefix ...avail from most fibreglass suppliers. for larger deck hole filling a different method would need to be used.