Persistency Of The Front Overlay To Solvents - Martin Walter Powersonic S Serie Manuel D'utilisation

6.5.

Persistency of the front overlay to solvents

The front overlay is based on a polyester foil with a biaxial alignment and has therefore a higher persistence against
solvents compared with e.g. polycarbonate or PVC. It is stronger and more durable than other foils generally used for
plastic foil keyboards and front panels.
The material is resistant against following chemicals over a period of more than 24 hours without any perceptible
changes:
Ethanol
Cyclohexane
Diaceton alcohol
Glycol
Isopropanol
Glycerine
Methanol
Triacetine
Dowandol DRM/PM
Acetone
2-butanone
Dioxane
Cyclohexane
MIBK
Isophorone
Ammonia < 40 %
Sodium hydroxide solution < 40%
Potassium hydroxide
Alkali carbonate
Dichromate
Potassium hexacyanoferrate
Acetonitrile
Sodium bisulphate
0160.0131 / 141219 Crest P 0117_001
Formaldehyde 37 – 42 %
Acetaldehyde
Aliphatic
Toluene
Xylene
Thinning agent (white spirit)
Formic acid < 50 %
Acetic acid < 50 %
Phosphoric acid < 30 %
Hydrochloric acid < 36 %
Nitric acid < 10 %
Trichloroacetic acid < 50 %
Sulphuric acid < 10 %
Cutting emulsions
Diesel oil
Varnish
Paraffin oil
Castor oil
Silicone oil
Turpentine substitute
Brake fluid
Decon
Aviation fuel
Petrol
Water
Salt water
Appendix
Trichloroethylene
Ethyl acetate
Diethyl ether
N-butyl acetate
Amyl acetate
Butylcellosolve
Ether
Soda chlorine < 20 %
Hydrogen peroxide < 25 %
Potash soft soap
Detergents
Tensides
Softening agents
Iron (II) chloride (FeCl2)
Iron (III) chloride (FeCl3)
Dibutyl phthalate
Dioctyl phthalate
Sodium carbonate
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