Raymarine Transducers, User Manual, Page: 27 / 56

Chapter 2: Installation 21
Use water-based antifouling paint only.
Never use ketone-based paint since ketones can attack many
plastics, possibly damaging the transducer.
Reapply paint every six months or at the beginning of each boating
season.
It is easier to apply antifouling paint before installation, but allow
sufficient drying time. As illustrated in Figure 2-6 paint the following
surfaces:
Exposed area of the housing, including the acoustic window
Bore of the housing up to 1¼" (30 mm)
Outside wall below lower O-ring
Exposed end of the paddle wheel insert
Paddle wheel cavity
Paddle wheel
Blanking plug below the lower O-ring and the exposed end
Figure 2-6: Applying Antifouling Paint
Housing Paddlewheel
insert
Paint exposed housing
and bore up to 1.1/4" (30 mm)
Lower
'O' ring
Paint outside wall below the lower 'O' ring including
exposed end, paddlewheel cavity and paddlewheel
D4859-2