CARE OF FIBERGLASS BOATS
Gelcoat, which is the color material used on fiberglass, is susceptible to the bombardment of ultra-violet
rays of the sun and to general weathering. These elements, In time, cause a fading of the color and a
chalking of the surface.
The best method of preventing this is the application of a quality wax. The wax should be light in color or
white so that it will not discolor the surface. If possible, you should choose a wax with a cleaner. This will
remove the surface dirt. The wax should not be water soluble and should have some resistance to
detergents.
Spray waxes can be used between heavy duty waxings to remove superficial dirt and protect the gelcoat.
RUST REMOVAL FROM GELCOAT: To remove rust from gelcoat surfaces, the following method is
satisfactory:
Soak the rust area with a mild solution of ‘Hydrofluoric Acid’. This is the same type of solution that is used
by dry cleaning establishments to remove rust from clothing.
Two precautions must be taken:
1. Hydrofluoric acid can cause severe skin burns, particularly under fingernails, therefore, RUBBER
GLOVES MUST BE WORN. Read the instructions on the label carefully.
2. Hydrofluoric acid will dissolve gelcoat and therefore surfaces must be thoroughly flushed with water
after the rust has been removed.
Typical products for fiberglass care:
CLEANERS:
Kuhls fiberglass boat cleaner
Fuller Brush Co. Fiberglass cleaner.
SOAPS:
Kuhls fiberglass boat soap
Fuller Brush Co. boat soap.
WAXES:
Kuhls Boat Wax
Fuller Brush Co. Boat Wax
S.C.Johnson & Son Inc. (J Wax kit)
Page 12