| Quality/Hardness |
General features |
Use temperature |
Homologations of proposed blends |
Colors |
NBR
(Nitrile)
From 45 to 90 Shore A/
DIDC |
Good resistance
-to mineral oil
-to domestic gas
-water up to 80°C
-to gas
-to aliphatic solvents
-to mechanical
Low resistance
-to ozone and UV
-to acids
-to unleaded petrol |
From -20 ° to +110°C |
Gas
-DVGW EN 682 type GBL
-DVGW EN 549 B2-H3
Water
-DVGW KTW D2 up to 90°C
-FDA
-ACS |
Standard
Black
On request
White
Grey
Red
Blue |
NBR low T°
(Nitrile low temperature)
From 70 to 80 Shore A/
DIDC |
Good resistance
-same properties as NBR
-to the cold
Low resistance
-to ozone and UV
-to acids
-to unleaded petrol |
From -55 ° to +110°C |
|
Standard
Black |
EPDM
(Ethylene propylene)
From 35 to 80 Shore A/
DIDC |
Good resistance
-to water, steam and aqueous solutions
-to synthetic brake fluid
-to ozone and UV
-to the cold
Low resistance
-to minerals oils and hydrocarbons |
From -40 ° to +130°C
From -40° to +160°C (crosslinked to peroxyde) |
Water
-DVGW KTW D2 up to 90°C
-FDA
-ACS |
Standard
Black
On request
White |
VMQ
(Silicone)
From 35 to 80 Shore A/
DIDC |
Good resistance
-to the heat
-to ozone and UV
-to water up to 100°C
-to the cold
-to vegetals and animals oils
Low resistance
-to minerals oils
-to domestic gas
-to petrol |
From -60 ° to +200°C |
Water
-FDA
Greases
-FDA |
Standard
Red
On request
White
Black
Blue
Transparent |
AU/PU
(Polyurethane)
From 80 to 90 Shore A/
DIDC |
Good resistance
-to oils and greases |
From -30° to +90°C |
|
Standard
Black |
FPM/FKM
(Fluorocarbone)
From 55 to 90 Shore A/
DIDC |
Good resistance
-to minerals oils
-to ozone and UV
-to domestic gas
-to petrol
-to aliphatic and aromatics solvents
-to acids
Low resistance
-to brake fluid |
From -15° to +200°C |
|
Standard
Black
On request
Brown
Green |
HNBR
(Hydrogenated nitrile)
From 50 to 90 Shore A/
DIDC |
Good resistance
-to aggressive minerals oils and greases
-to ozone and UV
-to water and steam
-to diluted bases
Low resistance
-to petrols
-to brake fluid |
From -40° to +150°C |
Gas
-DVGW EN 549 D2-H3 |
Standard
Black
On request
Yellow
Green |
FMQ
(Fluorosilicone)
From 60 to 80 Shore A/
DIDC |
Good resistance
-to the heat
-to the cold
-to ozone and UV
-to water up to 100 °C
-to animals and minerals oils
-to solvents
-to petrols
-to chlorinated hydrocarbons
-to aromatics solvents and alcohols |
From -50° to +200°C |
|
Standard
Blue
On request
Red |
TFE/P
(Tetrafluorethylene, AFLAS)
From 70 to 80 Shore A/
DIDC |
Good resistance
-to boiling water
-to steam
-to acids and alkaline solutions
-to ammonia
-to minerals oils
-to brake fluid
-to oxidized products |
From -20° to +280°C |
|
Standard
Black |
FFKM
(Perfluorinated rubber)
From 70 to 80 Shore A/
DIDC |
Good resistance
-to high temperatures
-to chemicals products
-to ozone and UV
-to minerals oils
-to hydrocarbons |
From -15° to +280°C |
|
Standard
Black
On request
White |
CR/NEOPRENE
(Polychloroprene)
From 45 to 80 Shore A/
DIDC |
Good resistance
-to ozone and UV
-to mechanical
Low resistance
-to petrols
-to steam
-water up to 70°C
-to minerals oils |
From -30° to +100°C |
|
Standard
Black |
NR
(Natural rubber)
From 50 to 70 Shore A/
DIDC |
Good resistance
-to acids
Low resistance
-to alcohols and glycols
-to petrols and solvents
-to minerals oils |
From -40° to +90°C |
|
Standard
Black |
