Advantages of Rubber Gaskets

A gasket is a mechanical seal which fills the space between two or more mating surfaces, generally to prevent leakage from or into the joined objects while under compression.

RUBBER-SEALS

Chemical Compatibility :

Air, 200 – 300 °F – Silicone

Beer – EPDM

Chlorine Water – Viton (FKM)

Gasoline – Buna-N or Viton (FKM)

Hydraulic Oil (Petroleum Base, Industrial) – Buna-N

Hydraulic Oils (Synthetic Base) – Viton

Water – EPDM

Motor Oils – Buna-N

Specifications:

Test Criteria

 

Unit
Given Values
Test Method
Base elastomer IR

Density

Hardness

g/cm3
ShA/IRHD-M
Indicate
Indicate)
60-80
DIN 5145 1
ISO 1183-1 (A)
ISO 761901/ISO 48 M
Compression Set

NBR 24h bei +100’C in Umluft
FKM/ FVMQ 24h bei +100’C in Umluft

max 30%
max 30%
ISO 815-1 Method
A
Ageing at warm air
NBR  168h bei +100’C in Umluft
FKM/ FVMQ  168h bei +150’C in Umluft
Change of hardness
shA/IRHD-mNBR 0  +12
FKM 0  +5
FVMQ 0  +5
ISO 188
Diesel Resistance

72+/- 2 h bei(+60+/-2) ‘C
Change of hardness

Change of volume%

 

shA/IRHD-m
%

NBR -12  0
FKM/ FVMQ -5  0
NBR 0  +20
FKM/FVMQ 0  +8
ISO 1817
Test Diesel Liquid F
Biodiesel Resistance

72+/- 2 h bei(+85+/-2) ‘C
Change of hardness
Change of volume%

 

shA/IRHD-m

NBR -10  0
FKM/ FVMQ -5  0
NBR  0  +15
FKM/FVMQ  0  +8
ISO 1817
Test Diesel RME
to DIN EN 14214
Cold temperature Standard
Tr  ‘CNBR   max -32
FKM   max -18
FVMQ  max -45
DIN 5376-A-10