calafatear bedeutet auf Englisch

caulk [caulked, caulking, caulks]▼(to seal joints with caulk)
verb
[UK: kɔːk] [US: ˈkɑːk]

pay [paid, paid]▼(to cover with a waterproof substance)
verb
[UK: peɪ] [US: ˈpeɪ]