| Designation |
Commercial
Denomination |
General
Characteristics |
Typical
Application |
NBR
(Acrylic-nitrile
butadylene) |
BUNA -N
PERBUNAN
ELAPRIM
JSR-N |
A synthetic elastomer with good
mechanical & thermal properties.
Good resistance to oils. Poor
resistance to ozone and
atmospheric derivatives
|
Water with a max. temperature 70°C
air with a max. temp. 90°C. Mineral
oils and their derivatives,
hydrocarbons, methane, ethane,
propane, butane, kerosene oil,
fuel oil. |
EPDM
(Ethylene-
propylene-
dylene) |
BUNA- AP
DUTRAL
NORDEL |
A synthetic elastomer derived from the
co-opolimisation of ethylene & propylene. Suitable for use with non-phosphoric based hydraulic fluids(hold). Water & steam to a max. temp. of 140°C. Not suitable for use with mineral based products. (oils, fats, & fuel oils & petrol)
|
Hot water and steam. Detergents.
Potassium and sodium solutions.
Hydraulic fluids. Polarised solvents.
Skydrol 500 and 700 |
FPM
(Fluorocarbon) |
VITON
TECHNOFLON
FLUOREL |
A synthetic elastomer derived from
flour-propylene. Excellent resistance
to the high temp.Excellent resistance to ozone, oxygen, mineral oils, synthetic hydraulic oil, petrol,
hydrocarbons and many other chemicals.
Not suitable for use with superheated steam |
For general use
up to 130°C |
PTFE
(Polytetra-
fluorethylene) |
TEFLON |
Thermoplastic material used also fitted with a
mineral resin. Excellent resistance to many
chemicals. Optimum high temp. resistance. Poor
resistance improved by adding the mineral filling.
|
For general use
up to 160°C |
