Service: Condensed chemical resistance for keyboards covered with film

Chemical resistance according to DIN 42115
In a departure from DIN 42115, the reaction time was extended to a period of 24 h. The assessment took place directly after chemical residue was removed and was then repeated after 24 h.

Substance CAS-Number* Resistance
Organic solvents Acetone 67-64-1 Resistant with some restrictions
Ethanol 64-17-5 Resistant with some restrictions
Isopropanol 67-63-0 Resistant with some restrictions
Loesol 80 (90-100% hydrocarbons, naphta) 64742-49-0 Resistant with some restrictions
Methyl-ethyl-keton 78-93-3 Resistant with some restrictions
White spirit N/A Resistant



Inorganic solvents Cellulose thinner N/A Resistant with some restrictions
Screen cleaner N/A Resistant with some restrictions
Thinning agent N/A Resistant with some restrictions



Acids Acetic acid 5% 64-19-7 Resistant
Phosphoric acid 10% 7664-38-2 Resistant with some restrictions
Sulphuric acid 10% 7664-93-9 Resistant with some restrictions



Other substances and mixtures Ammonia 7664-41-7 tba
Vinegar-based cleaner; ingredients/100g
<5% anionic tensides
N/A Resistant
Machine oils N/A tba
Potash 584-08-7 Resistant
Sweat N/A tba
Soda N/A tba
Hydrogen peroxide 12% 7722-84-1 Resistant with some restrictions



LABS test
White spirit: cellulose thinner: methyl-ethyl-ketone N/A tba

* Chemical Abstracts Service Registry Number, see www.cas.org

"Resistant" No change after exposure to the chemical

"Resistant with some restrictions" Slight, insignificant changes after exposure to the chemical without any impairment of functions

"Non-resistant" A significant change after exposure to the chemical with or without impairment of funtions

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