11
Anti-fouling Paint
Aquatic growth can accumulate rapidly on the sensor’s surface reducing
performance within weeks. Surfaces exposed to salt water must be coated with anti-
fouling paint.
Use water-based
anti-fouling paint only
. Never use ketone-based
paint, since ketones can attack many plastics possibly damaging the sensor.
It is easier to apply anti-fouling paint before installation, but allow sufficient drying
time. Reapply paint every 6 months or at the beginning of each boating season.
Paint the following surfaces (Figure 3):
• Outside wall of the insert below the lower O-ring
• Bore of the housing up 30mm (1-1/4")
• Exterior flange of the housing
• Exposed end of the blanking plug
Figure 3. Anti-fouling paint
outside wall
bore of housing
exterior flange
O-ring
below lower
up 30mm (1-1/4")
of housing
Copyright © 2017 Airmar Technology Corp
housing
& valve
assembly
insert
CAUTION
: Do not
paint the face of
the insert with the
electrodes.
blanking
plug
exposed
end