OS 375
96
Do not allow the hull antifouling paint to contact the outboard motor. Most antifouling paints designed for hull
bottoms contain copper and can cause severe galvanic damage to the motor. Always leave a 1/2" barrier between
the hull bottom paint and outboard motor.
Most bottom paints require some maintenance. Proper maintenance is especially important when the boat is
in saltwater and not used for extended periods or after dry storage. If the hull bottom has been painted with
antifouling paint, contact your dealer for the recommended maintenance procedures.
SACRIFICIAL ANODES
Sacrificial zinc anodes are installed on the outboard engines, the trim tabs and on the transom. The transom
zinc is connected to the bonding system and protects the underwater hardware that is bonded.
The anodes are less noble than copper based alloys and aluminum and will deteriorate first, protecting the
more noble underwater hardware against galvanic corrosion. Anodes should be checked monthly and
changed when they are 75% of their original size. When replacing the anodes, make sure the contact surfaces
are clean, shiny metal and free of paint and corrosion. Never paint over the anode.
Boats stored in saltwater will typically need to have the anodes replaced at least every 6 months to one year.
Anodes requiring replacement more frequently may indicate a stray current problem within the boat or at the
slip or marina. Anodes that do not need to be replaced after one year may not be providing the proper
protection. Loose or low quality anodes could be the problem. Contact your dealer for the proper size and
type of anodes to be used and the specific installation procedure.
FIBERGLASS GELCOAT SURFACES
Normal maintenance requires only washing with mild soap and water. A stiff brush can be used on the nonskid
areas. Kerosene or commercially prepared products will remove oil and tar which could be a problem on
trailered boats. Harsh abrasive and chemical cleaners are not recommended because they can damage or dull
the gelcoat, reducing its life and making it more susceptible to stains. When the boat is used in saltwater, it
should be washed thoroughly with soap and water after each use.
At least once a season, wash and wax all exposed fiberglass surfaces. Use a high quality automotive or boat
wax. Follow the procedure recommended by the wax manufacturer. The washing and waxing of your boat
will have the same beneficial effects as they have on an automobile finish. The wax will fill minute scratches
and pores thus helping to prevent soiling and will extend the life of the gelcoat.
After the boat is exposed to the direct sunlight for a period of time, the color in the gelcoat tends to fade, dull
or chalk due to oxidation of the gel. This condition will be more apparent with dark colors and as a result will
require more frequent maintenance. A heavier buffing is required to bring the gelcoat back to its original
luster. For power cleaning use a light cleaner. To clean the boat by hand, use a heavier automotive cleaner.
Before cleaning the surfaces, read the instructions given with the cleaner. After cleaning the surfaces, apply
wax and polish all fiberglass surfaces except the nonskid areas.
If the fiberglass should become damaged and need repair, contact your dealer for an authorized repair person
to make the repairs.
DO NOT WAX NONSKID AREAS AS THIS COULD MAKE THEM SLIPPERY AND
CONSEQUENTLY INCREASE THE POSSIBILITY OF INJURY.
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