Use and Care Manual

FIBERGLASS LADDER TECHNICAL MANUAL
5
The following will enhance the life and appearance of FRP ladders which have weathered
due to long term outdoor exposure:
RECOMMENDED METHOD OF PREPARATION
1. Sand the rails of the ladder smooth with a nonmetallic abrasive such as
3M™ Scotchbrite
®
or softback sanding sponge. Do not use ordinary sandpaper or
emery cloth as it will leave atrace of abrasive grit embedded in the rail surface
and may cause the surface to be an electrical conductor.
2. Wash the entire rail surface clean with denatured alcohol or an equivalent
acceptable for health reasons and allow to air dry. Wash down a second time to
ensure that no residue is left on the surface of the ladder.
3. Use a primer followed by one or two coats of either acrylic lacquer or
polyurethane paint with U.V. additives for coating purposes. It is important to
coat the sawed ends of the rails whenever possible. To restore color, apply a
pigmented acrylic lacquer or polyurethane paint. Pigmented coating will screen
out an even greater amount of U.V. while restricting moisture entr y.
Several acceptable coatings are on page five.
4. Contact Werner Co. for replacement labels.
SOLVENTS NOT RECOMMENDED FOR IMMERSION
Acetone Ethylether
Carbon Disulphide Methyl Ethyl Ketone
Carbon Tetrachloride Toluene
5
CORROSION RESISTANCE GUIDE
FOR FIBERGLASS
Chemical 75°F 150°F
A
cetic Acid, 5% RR
Acetic Acid, 10% R NR
Aluminum Sulphate RR
Ammonium Hydroxide, 5% R NR
Aluminum Nitrate RR
Benzene Sulfonic Acid, 5% RR
Calcium Chloride RR
Chlorine Dioxide, 15% R NR
Chromic Acid, 5% RR
Copper Sulphate RR
Ethylene Chlorhydrin RR
Ethylene Glycol RR
Ferrous Sulphate RR
Fatty Acids, 100% RR
Fluosilicic Acid, 10% NR NR
Hydrochloric Acid, 1%-10% RR
Hydrochloric Acid, 37% R NR
Kerosene RR
Magnesium Chloride RR
Methyl Alcohol R NR
Naptha RR
Chemical
75°F 150°F
N
itric Acid, 5% R NR
Phosphoric Acid, to 85% RR
Sodium Bicarbonate RR
Sodium Bisulfate RR
Sodium Carbonate R NR
Sodium Chloride RR
Sodium Hydroxide, 5% NR NR
Sodium Hypochlorite, 5% RR
Sodium Nitrate RR
Sodium Silicate R NR
Sodium Sulfate RR
Sour Crude Oil RR
Sulfuric Acid, to 10% RR
Sulfuric Acid, 30—50% R NR
Trisodium Phosphate R NR
Xylene R NR
NOTE:
1) “R” is recommended
2) “NR” is not recommended
RECOMMENDED COATING METHODS
AND MATERIALS FOR FIBERGLASS LADDERS