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TABLE MATERIALS

Friction ring

O'Ring

Mating surface

material

Standard

code

ISO

code

Material

Colour

Characteristics

Code Type of material

Service

temperature

DP

P

Virgin PTFE

White

Resistance to chemical products

Impermeability

Dielectric

Non-stick

Low friction coefficient

Food industry

K6

NBR 70 Shore A

-30°C/+100°C

Steel

Stainless steel

Chrome steel

Aluminium

Bronze

Cast iron

Treated surface

G6

FKM 70 Shore A

-20°C/+200°C

C6

EPDM 70 Shore A

-45°C/+150°C

F6

VMQ 70 Shore A

-60°C/+200°C

DC

C

PTFE + 25%

Carbon

Grey

Improvements

• Wear properties

• Compression set

Good resistance to chemical products

Thermal and electrical conductivity

Anti-static

High-performing in compression-based

dynamic applications

K6

NBR 70 Shore A

-30°C/+100°C

G6

FKM 70 Shore A

-20°C/+200°C

C6

EPDM 70 Shore A

-45°C/+150°C

CG

C

PTFE + 23%

Carbon + 2%

Graphite

Black

K6

NBR 70 Shore A

-30°C/+100°C

G6

FKM 70 Shore A

-20°C/+200°C

C6

EPDM 70 Shore A

-45°C/+150°C

DV

V

PTFE + 25 %

Glass

Blue

Improvements

• Wear properties

• Mechanical strength

Slightly more abrasive, however, this is

corrected by adding MOS2

Maintains its chemical and dielectric

properties

Well-suited to applications with rotational

and simultaneous alternating movements

K6

NBR 70 Shore A

-30°C/+100°C

Steel

Chrome steel

Cast iron

G6

FKM 70 Shore A

-20°C/+200°C

VM

M

PTFE + 15 %

Glass + 5%

MOS2

Grey

K6

NBR 70 Shore A

-30°C/+100°C

G6

FKM 70 Shore A

-20°C/+200°C

DX

X

PTFE GL Blue

+ Glass +

Metal oxides

Turquoise

blue

Resistance to compression

Resistance to wear

Excellent chemical stability

Good thermal conductivity

K6

NBR 70 Shore A

-30°C/+100°C

G6

FKM 70 Shore A

-20°C/+200°C

DG

G

PTFE + 15%

Graphite

Black

Improvements

• Wear properties

Reduced wear on metal parts

Self-lubricating

Thermal and electrical conductivity

Low permeability

Good friction coefficient

Anti-static

High performing in dynamic self-lubricating

applications

K6

NBR 70 Shore A

-30°C/+100°C

Steel

Stainless steel

Chrome steel

Aluminium

Bronze

Cast iron

Treated surface

G6

FKM 70 Shore A

-20°C/+200°C

C6

EPDM 70 Shore A

-45°C/+150°C

K1

K

PTFE + 10%

Ekonol

Light

brown

Improvements

• Better abrasion resistance

• Better dimensional stability at high

temperatures

Use up to +300°C

Good friction coefficient and low

permeability

K6

NBR 70 Shore A

-30°C/+100°C

G6

FKM 70 Shore A

-20°C/+200°C

C6

EPDM 70 Shore A

-45°C/+150°C

K2

K

PTFE + 20%

Ekonol

Light

brown

K6

NBR 70 Shore A

-30°C/+100°C

G6

FKM 70 Shore A

-20°C/+200°C

C6

EPDM 70 Shore A

-45°C/+150°C

DB

B

PTFE + 60%

Bronze

Dark

brown

Improvements

• Wear properties

• Warping resistance and creep strength

• Compression resistance

Self-lubricating

Electrical and thermal conductivity

Does not alter the metal parts

Reduced hold with certain chemical

products

Used for high-compression dynamic seals

and has a low level of wear

K6

NBR 70 Shore A

-30°C/+100°C

Steel

Chrome steel

Cast iron

G6

FKM 70 Shore A

-20°C/+200°C

B4

B

PTFE + 40%

Bronze

Dark

brown

K6

NBR 70 Shore A

-30°C/+100°C

G6

FKM 70 Shore A

-20°C/+200°C

HG

HG

PE-UHMW

White or

off-white

Excellent wear resistance on contact with

water and air

K6

NBR 70 Shore A

-30°C/+80°C

Steel

Stainless steel

Chrome steel

Aluminium

Bronze

Cast iron

Treated surface

PU

U

Polyurethane

Blue

Strong mechanical resistance

Good resistance to wear and abrasion

High elasticity modulus

Good flexibility

Very good resistance to ozone and oxidation

K6

NBR 70 Shore A

-30°C/+90°C

PUHT

U

High-

temperature

polyurethane

White or

off-white

K6

NBR 70 Shore A

-30°C/+100°C

Other grades of materials are available depending on your specificities.

HYDRAULIC SEALS | PISTON SEALS |

BECA 500 - 502 - 504