Sealant for wet exhaust thru hull

May 26, 2004
168
- - Oriental, NC
On my O'day35 the wet exhaust thru hull exits above the water line of course but under way the boat squats and the thru hull is partially submerged. What is the best sealant to use for this thru hull. Butyl, 4200, Boat Life or what. Thanks

Goodwinds
DaveM
 
Feb 6, 1998
11,709
Canadian Sailcraft 36T Casco Bay, ME
On my O'day35 the wet exhaust thru hull exits above the water line of course but under way the boat squats and the thru hull is partially submerged. What is the best sealant to use for this thru hull. Butyl, 4200, Boat Life or what. Thanks

Goodwinds
DaveM
Life Caulk polysulfide, 3M 4200, Sikaflex 295UV or Sikaflex 291... Plenty of choices...