Outdoors RV Mountain Series Owner's Manual page 108

Maintenance
These materials, if left in contact with polyester, may attack or change the color. Any cleaner that is
used should be in contact with the polyester the minimum amount of time required to do the job. All
cleaners are meant to attack dirt and remove it. The longer they remain in contact past the recommended
time frame, the more they can potentially attack the finish.
It is best to use mild automotive car wash soaps, which will work for a majority of stains and dirt
accumulations. If you are unsure about using a cleaner, do the following things;
1. Read the label and follow the manufacturer's instructions. Only use cleaners that are specifically
recommended for fiberglass as detailed on the label of the cleaning product. Use of cleaners not
designed for gel coated surfaces could be damaging. Cleaners specifically formulated for use on
wood or teak normally are not appropriate for fiberglass.
2. For stubborn stains that cannot be removed with mild soap and water you may try mineral spirits.
Be sure to rinse the fiberglass surface with clean water after using mineral spirits or any other
chemical cleaner or the surface will become dull.
3. Run a test spot. Try it in an inconspicuous area. If it discolors or dulls this area, do not use it.
Waxes
There are a number of waxes on the market. Use one specifically designed for fiberglass. Apply a thin
coat of wax. Do not leave a large residue because excess wax can yellow, causing a streaking pattern
later.
General instructions on waxes:
 Read the directions on the can.
 Do not use in direct sunlight.
 Use clean cloths.
 Work a small area (about 3 feet by 3 feet) at a time.
Normally, the harder the consistency is of the wax, the higher the wax content will be. Softer waxes
have a higher proportion of silicones and solvents in them. If a power buffer is used, use a low RPM
with light pressure. Keep it moving at all times to prevent heat build-up. Waxes formulated specifically
for gel coat fiberglass surfaces are handled by many boat dealers, shower stall dealers and automotive
retail stores.
General Cleaning Tips
 Always wash your RV from top to bottom followed by thorough rinsing. The roof should be
washed first to avoid potential streaking onto the exterior walls. Wash roof according to
manufacturers' procedure.
 Strong solvents or cleaner concentrations can cause damage to painted surfaces.
 Abrasive materials such as steel wool, and abrasive brushes will harm finishes.
 Avoid temperature extremes. Heat accelerates chemical reactions and may evaporate water from
solutions. Extremely low temperature may give poor cleaning results. Cleaning under adverse
conditions may result in streaking or staining. Ideally cleaning should be done in shade at
moderate temperatures.
 Do not substitute a heavy-duty cleaner for recommended cleaners.
 Never use paint removers, aggressive alkaline, acid or abrasive cleaners.
 Follow manufacturers' recommendations for mixing and diluting cleaners. Always conduct a
surface test to ensure cleaning solution will not attack the gel coated surface.
 Never mix cleaners.
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