Propiedades del material y resistencia a los agentes químicos de las juntas

Descarga

  • Informaciones técnicas

    Propiedades del material y resistencia a los agentes químicos de las juntas - página 8

    (309 KB)

Material characteristics of seals

Test specifications: DIN 53461 Neoprene CR Polyurethane PU EPDM Silicone Si Perbunan N NBR TPE
Permitted temperature range – 30 to + 90 °C – 40 to + 100 °C – 35 to + 120 °C – 60 to + 200 °C – 35 to + 100 °C – 40 to + 70 °C

The chemical resistance of seals

  Neoprene CR Polyurethana PU EPDM Silicone Si Perbunan N NBR TPE
Aceton o o + o --- ---
Formic acid o Δ + o Δ o at 10 %
Ammonia + --- + + + +
Benzene o + --- + o Δ
Brake fluid o Δ o + o Δ
Butane Δ + --- --- + Δ
Butanol + --- + Δ + Δ
Calcium chloride Δ + + Δ + Δ
Chlorine benzole --- --- --- --- --- Δ
Diesel oil o + --- o + Δ
Acetic acid 75 % Δ + --- --- 5 %
Formaldehyde + + + + 40 % Δ
Frigen 113 o Δ --- Δ + Δ
Fruit juice + + + + --- +
Glycerine + + + + + +
Heating oil o + --- o + Δ
Hydraulic oil --- + --- o o Δ
Caustic potash solution + Δ + Δ o Δ
Potassium chloride Δ Δ + + + Δ
Potassium hydroxide + --- + o o +
Linseed oil + + --- o + Δ
Methanol + --- + + + Δ
Methylene chloride --- --- --- --- --- Δ
Lactic acid + + + Δ + o
Mineral oils o o --- + + Δ
Engine oils o o --- + + Δ
Sodium carbonate Δ Δ + Δ + Δ
Sodium chloride + Δ + + + Δ
Sodium hydroxide 50 % --- + o o +
Soda lye 50 % --- + --- o 50 %
Nitric acid --- --- 10 % --- --- +
Hydrochloric acid o --- + Δ --- +
Lubricating oil o Δ --- + + Δ
Carbon disulphide --- o --- + + Δ
Sulphuric acid 50 % --- 20 % 25 % o +
Soap suds --- + + + + Δ
Detergents o + + + + Δ
Turpentine oil --- --- --- --- + Δ
Hydrocarbon tetrachloride --- --- --- --- --- Δ
Toluol --- --- --- --- --- Δ
Trichloroethylene --- --- --- --- --- Δ
Water (distilled, river, tap, sea) + + + + + +
Tartaric acid o Δ + + --- Δ
Xylol --- --- --- --- --- Δ
Zinc sulphate Δ Δ + + + Δ
Citric acid Δ Δ + + --- Δ

Symbols

+ = resistant to all concentrations °C = resistant to this max. °C % = resistant to this max. percentage concentration o = resistant under certain conditions --- = not resistant Δ = no information available