Use Instructions

The front fascia is based on a polyester film with biaxial orientation,
which therefore has a better resistance to solvents than ordinary films.
It is stronger and more durable than e.g. polycarbonate or PVC, and is
therefore optimally suitable for the manufacture of fascias and mem-
brane keyboards.
As per DIN 42 115 Part 2, the front fascia is able to withstand over 24
hours exposure to the following chemicals without any visible effects.
Concentration 100% (except where otherwise stated):
Acetaldehyde Diethylether Sodium carbonate
Acetone Dioctyl phthalate Caustic soda <40%
Acetonitrile Dioxane Paraffin oil
Aliphatic hydrocar-
bons
Dowandol DRM/PM Phosphoric acid
>30%
Alkaline carbonate Ferrous chloride
(FeCl²)
Castor oil
Formic acid < 50% Ferric chloride (FeCl³) Nitric acid 10%
Ammonia <40% Glacial acetic acid <1
hour’s exposure
Hydrochloric acid
<36%
Amyl acetate Acetic acid <50% Salt water
Ethanol Ethyl acetate Sulfuric acid <10%
Ether Varnish Silicone oil
Gasoline Aviation fuel Tensides
Bichromate Formaldehyde 37% -
42%
Turpentine substitute
Ferrocyanide salts Glycol Toluol
Drilling emulsion Glycerine Triacetin
Brake fluid Isophorone Trichlorethane
Butyl cellosolve Isopropanol Trichloroacetic acid
<50%
Sodium hypochlorite
<20%
Potash soap Thinner
Cyclohexanol Potassium hydroxide Detergent
Cyclohexanon Methanol Water
Decon foam Methyl ethyl ketone Hydrogen peroxide
<25%
Diacetone alcohol MIBK Fabric softener
Dibutyl phthalate N-butyl acetate Xylene
Diesel oil Sodium bisulfate
Operation
Cleaning the device
Keyboards - Industrial input devices 33