Chemical Resistance of Monitors and Touch Screens

Hope Industrial monitors and touch screens may be exposed to a number of chemicals that can effect the internal and external monitor components. The chemical resistance of each is outlined below.

External Components

Other than stainless steel, there are three separate polymeric materials that are exposed to the environment on the front of our panel mount monitors. The chemical resistance of each is outlined below.

Resistive Touch Screen

The surface of the resistive touch screen is made of polyester and is resistant to the following chemicals when exposed for a period of one hour at a temperature of 21°C:

  • Industrial Chemicals – Acetone, Methylene chloride, Methyl ethyl ketone, Isopropyl alcohol, Hexane, Turpentine, Mineral spirits, Unleaded Gasoline, Diesel Fuel, Motor Oil, Transmission Fluid, Antifreeze, Automotive Hydraulic Fluid, Skydrol.
  • Food Service Chemicals – Ammonia based glass cleaner, Laundry Detergents, Cleaners (Fantastic, Formula 409, Joy, etc.), Vinegar, Coffee, Tea, Grease, Cooking Oil, Salt.

Panel Sealing Gasket

The panel sealing gasket material is a polyether / polyester urethane blend. It is unaffected by mild inorganic acids and bases. It shows modest swelling with oils, greases and other linear hydrocarbons. Strongly polar solvents will greatly swell the material. In most cases, physical properties recover to a great extent as the solvents evaporate.

More specifically, the gasket material is resistant to the following chemicals: Industrial Chemicals Acetone, Methanol, Kerosene, cutting fluids, hydraulic oil, Isopropyl alcohol, mineral spirits, motor oil. Where the chemical resistance of the gasket is inadequate, it is possible to protect the gasket with a bead of Polysulfide sealant.

Protective Tempered Glass Window (non touch screen units)

The anti-reflective coating on the tempered glass for non-touch monitors is resistant to the following chemicals: Industrial Chemicals Acetone, Ethyl Alcohol, Isopropyl Alcohol(50%), trichloroethylene.

Internal Components

Sulphur Gas Protection (touch screen units)

Sulphur compounds can greatly damage electrical components so sulphur damage is not included in our standard warranty.

For customers who may expose displays to sulphur, we offer special monitor models that incorporate the following features:

  • Glass-Armoured Resistive Touch Screen – Custom touch screen with a micro-thin sheet of glass laminated to the polyester top sheet. This glass layer creates a more uniform barrier against sulphur entrance.
  • Vapour-Phase Corrosion Inhibitor Emitter – Small device that emits a continuous flow of vapour, which forms a protective coating on all metal surfaces and provides long-term protection against corrosion by sulphur compounds and a host of other adverse conditions.
  • Touch screen permanently sealed to monitor bezel using epoxy – This solution involves using epoxy to attach the touch screen to the monitor to the bezel, creating a polymeric barrier which helps keep sulphur out of the monitor enclosure.

Also, for an additional charge of €100 per unit we will include, for these models only, damage from sulphur along with our standard 3-year warranty.

Hope Industrial Systems offers this information as a service to its customers and makes no guarantee or warranty as to the applicability of this chart for any particular situation as actual conditions of use are beyond our control. When you need more information about chemical resistance, please contact us. We do have additional information that is not published on this web site.