Busy weekend last weekend. Other than the mainmast, time was dedicated to caulking the deck using a polyurethane based black sealant.
In all I used 9 cartridges , using a hand operated gun to squeeze out the glue. Professional builders use pneumatic guns for the task and I quickly understood the reason why: it's so hard and tiresome to do it by manual strength alone!
Priori to applying the sealant, the teak strips have been protected by masking tape leaving out only the gaps, ready to receive the a coat of primer followed by the black goop.
After removal of the tape the results are encouraging and the required amount of sanding feels mangeable. We'll see if I'm wrong in saying that!