Service: Condensed chemical resistance for keyboards covered with glass

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
Ethanol 64-17-5 Resistant
Isopropanol 67-63-0 Resistant
Loesol 80 (90-100% hydrocarbons, naphta) 64742-49-0 Resistant
Methyl-ethyl-keton 78-93-3 Resistant
White spirit N/A Resistant

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

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

Other substances and mixtures Ammonia 7664-41-7 Resistant
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
Bleach** N/A Resistant

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

* Chemical Abstracts Service Registry Number, see
**We tested selected products

"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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