Entry type: FAQ, Entry ID: 39718396, Entry date: 03/11/2015
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How resistant to chemicals are the SIMATIC HMI operator panels and Industrial PCs?

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This entry gives you information about the chemical resistance of the fronts/surfaces of our SIMATIC HMI operator panels.

Description
The PDF file lists all the devices whose fronts1) have been tested and whose fronts1) have the same properties as reference devices.
1) Fronts consist of the decor foil, plastic, seal and touch foil (on Touch devices).

Device_List_e.pdf (20 KB)

1.) Test conditions and type of chemical substances
The chemical substances tested and the test conditions are listed below. The test pieces were coated once with the media.
 

Test media and test conditions
No. Medium Temp.
[°C]
Duration
[h]
1 Honing oil: Castrol Honilo 981 50 72
2 Super grade motor fuel 20 72
3 Diesel oil 20 72
4 Rape oil 50 72
5 Linseed oil 20 72
6 Hydrochloric acid 10% 20 1)
7 Sidolin streak-free cleaning agent with alcohol 20 72
8 Caustic soda solution 10% 20 1)
9 Ethyl alcohol 20 72
10 Benzine HAKU 20 72
11 Solvent (alkaline) 20 72
12 Acetone 20 72
13 Brake fluid DOT 4 50 72
14 H²O² 10% 20 72
1) 10 cycles over a total period of 72 hours: spray on, then leave to dry.

2.) Chemical resistance of fronts
The following chemical substances are to be classed according to the following table.
 
 

No. Medium Test result
1 Honing oil Castrol Honilo 981 No recognizable change.
2 Super grade motor fuel No recognizable change.
3 Diesel oil No recognizable change.
4 Rape oil No recognizable change.
5 Linseed oil No recognizable change.
6 Hydrochloric acid 10% Test piece shows signs of discoloration.
7 Sidolin streak-free cleaning agent with alcohol No recognizable change.
8 Caustic soda solution 10% Test piece shows signs of discoloration.
9 Ethyl alcohol No recognizable change.
10 Benzine HAKU No recognizable change.
11 Solvent (alkaline) No recognizable change.
12 Acetone Test piece shows signs of discoloration.
13 Brake fluid DOT 4 No recognizable change.
14 H²O² 10% No recognizable change.

Remark
Adhesives do not have a long-term resistance to aggressive oils, cleaning agents and solutions. In such a case, we recommend using a protective cover for panels. Information about which protective covers are available for panels is given in Entry ID: 12391908.

3.) Single gas test in compliance with DIN EN 60068-2-42
Remark

Only the fronts1) were tested, not the complete devices.
1) Fronts consist of decor foil, plastic, seal and touch foil (on Touch devices).

Test gas SO²
Concentration 25 ppm
Temperature 25 °C
Rel. humidity 75%
Test duration 10 days
Test result No recognizable change.

If you are using a chemical that is not in our list, you have the option of having a test made at your own expense.
For more information about this option please contact your Regional Sales:
Find contact (contact database)


Additional Keywords
22591016

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