GMT RUBBER-METAL-TECHNIC LTD
Figure igure 1.3
Tec Technica hnic al Inform ati on onContinued Continued
Rubber Compound Compound Specifi Specifica cations - To Be Regarded Only As A Guide.
Commercial name
Perbunan
Neoprene
Hypalon
Natural ral rub rubber
Acrylo Acrylon nitrile butadiene rub rubber
Hydrogenated rogenated NBR
Chlo hloroprene roprene rub rubber ber
Acrylic rub rubber
Butyl rub rubber
Chlorosul sulphonated phonated polyethylene
Charact racteerise ised by flex flexibility ibility,, stre streng ngth th and low tempera temperature ture resis resistance tance as well as excelle cellent nt phy physica sicall proper properties. Ideal for bonded rubber/metal rubber/metal products. products. Not suitable for petrol, grease, oil and ozone.
Highly resis resistant tant to abrasion and tearing, tearing, particu particular larly ly resista resistant nt to ageing geing.. Particuticularly recom recommended for crude oil products, high temper temperaatures, heating heat ing and lubricat bri cating oils, petrol and paraffin oil.
High resis resistance tance to heat, ozone and oil, good mechanical proper properties at high temper temperatures, atures, excel excel-lent resis resistance tance to wear and tear.
All-purpose All-purpose synthetic rubber, rubber, flame resis resistant, tant, resistant t o abrasion, abrasion, very robust, robust, good diel ectri c strength, partic particuularly recom recommended for exposure posure to ozone and weather weathering. ing.
Good ood resis resista tance nce to high temper temperaatures and min eral oils, high resis resistance tance to oxy oxygen and ozone, unfav favourable low low tempera temperature ture properproperties.
Very slightly permeper meable to air, steam and other gases, good resis tance to heat, h eat, oxygen, ozone and many chemi chemi cals cals and solsolvents, good electri elec trical cal prope ropert rtie iess (isol (isolaating), good re sis sis tance tance to abrasion abrasion and tear propagation.
Fast to light, colour colour -fast, flame- resis resistant, tant, good diel ectri c strength, partic particularly ularly recom recom mended for expoposure to sun light, ozone, weather and oxidis oxi dising ing chem chemica icals. ls. Howe Howeve ver, r, it has has a very very low tensile tensile strength.
Inte Interrnational designation
NR
NBR
HNBR
CR
ACM
IIR
CSM
Hardn Hardness avail abl e
25 - 95 95 Sh Shore A
25 - 95 95 Sh Shore A
40 - 90 90 Sh Shore A
30 - 90 90 Sh Shore A
50 - 80 80 Sh Shore A
40 - 85 85 Sh Shore A
50 - 95 95 Sh Shore A
Tempera emperature ture resis resisttance
-40° -40°C to 80° 80°C
-40° -40°C to 140° 140°C
-40° -40°C to 175° 175°C
-30° -30°C to 120° 120°C
-35° -35°C to 175° 175°C
-40° -40°C to 130° 130°C
-40° -40°C to 120° 120°C
Short-t Short- ti me peak temp
100°C
160°C
200°C
150°C
200°C
150°C
175°C
Tensile ensile Strength (N/mm2)
25
25
30
25
16
17
18
Tensi l e el ongation ( %)
800
500
150 to 600
450
up to 350
400 to 800
300
Abras Abrasi on
good
very good
very good
good
moderate
good
moderate
Resistance sistance to flex cracking cracking
good
moderate
very good
very good
moderate
moderate
good
Elonga Elongation/Ten tion/Tensile sile strength
excel excelll ent
good
very good
good
good
good
good
Flexib Flexi bil ity
excell cell ent
good
good
good
l ow
sl i ght
good
Notch strength / strength of structure structure
excel excelll ent
good
good
good
-
good
good
Resistance to li ght
bad
bad
good
very good
good
very good
excellent cellent
Resistance sistance to oxid oxidisi ng
moderate
moderate
good
good
very good
very good
excellent cellent
Resist sistance to ozone
moderate
moderate
good
very good
very good
very good
excellent cellent
Resist sistance to wear/ tear
very good
very good
good
very good
good
good
good
Weathering ering effect effect
good
moderate
good
very good
very good
very good
excellent cellent
Alk Alkal i
good
good
good
very good
not sui tabl e
very good
very good
Petrol
not sui tabl e
excell cell ent
good
moderate
not sui tabl e
not sui tabl e
moderate
Ben Benzol e
not sui tabl e
bad
moderate
not sui tabl e
not sui tabl e
not sui tabl e
not sui table
Foods Foodstuffs
suitable
suitable
not suitabl e
suitabl e
not sui tabl e
suitabl e
suitabl e
Solvents, Solvents, alip aliphatic
not sui tabl e
very good
very good
moderate
bad
not sui tabl e
moderate
Solvents, Solvents, arom aromatic
not sui tabl e
condit ditional
condit ditional
moderate
bad
not sui tabl e
moderate
Solvents, Solvents, halog halogen
not sui tabl e
bad
condit ditional
bad
bad
not sui tabl e
moderate
Oi ls and greases
not sui tabl e
excell cell ent
very good
good
very good
not sui tabl e
good
Aci Aci ds
condit ditional
condit ditional
condit ditional
good
not sui tabl e
very good
very good
Water
good
good
very good
very good
good
good
good
Prope Properties
Resistan sistance ce to
It is not possi possi ble to undertake dertake any warranty warranty for the stated proper properties ties as practi practical cal use is sub ject to tempera temperature, ture, concentra centration tion etc.... GMT RUBB RUBBER ER-ME -METAL-TECHNIC TAL-TECHNIC LTD. Th e Sid Sid in gs , Sta t io n Road, Gui Gui sel ey, Leeds, West Yor ks hi r e, LS20 LS20 8 BX, BX, U.K. Tel: Tel: +44 (0)1943 0)1943 870670 Fax: +44 (0) (0)1943 870631 E-Mail: Mail:
[email protected] Web: www.gmt.gb.com
Page 1-2 / 1-2 / Version Version 1.4
GMT RUBBER-METAL-TECHNIC LTD
Figure 1.4
Technical Inform ati onContinued
Rubber Compound Specifications - To Be Regarded Only As A Guide.
Commercial name
APTK Epichlorohydrin rubber
EPDM Ethylene-
Fluorinated rubber
Polyurethane
Silicone
SBR
Polyboron rubber
Polyurethane
Silicone rubber
Styrene butadiene rubber
propylenediene rubber
Low gas permeability, very good low temperature properties, good re sistance to mineral oils, ozone and high temperatures.
Versatil e in use, very good flexibility, resistant to abrasion, resistant to wear and tear, resistant to ozone and weather, r esistant to low temperatures. Can be used t o pro tect against washing and spraying agents, excel lent for pro file cords not usable in con junction with petrol, solvents and min eral oils.
Hexafluoropropylene vinyli dene f lu oride copolymer. Resistant to extreme temperatures even over 200°C. Very good mechani cal properties and hi gh resistance to t earing even at high temperatures. Excellent for exposure to sunlight, ozone and weather. Not recommended for use in con junction with esters and ketones.
Hi gh mec hani cal strength, medium resistance to oil, good resistance to ozone. Flexi bility and damping prop erties can be varied as required, excellent resistance to water, slight permanent set.
Excellent resistance to wear and tear, best flexibility with high shore hardness of all the elasto mers, good resistance to oil, not resistant to hydrolysis.
Resistant to high temperatures, odourless and tasteless, non-toxic, can be steri lised in accordance with foodstuffs regulations. Resistant to sea water and corrosive salt solutions, not to be used in con junction with steam, concentrated acids and alkali, swells strongly un der the ef fect of ar omatic sol vents.
Similar to natural rubber, resistant to abrasion, rubbing in, good resistance to high temperatures and cracking, resistance to extreme l ow temperatures, not resistant to petrol, benzene, greases and oils.
International designation
ECO
EPDM/EPM
FPM
PNR
PUR
MVQ/SI
SBR
Hardness available
50 - 90 Shore A
30 - 90 Shore A
65 - 90 Shore A
10 - 80 Shore A
55 - 98 Shore A
40 - 80 Shore A
35 - 95 Shore A
Temperature resistance
- 40°C to 130°C
- 40°C to 150°C
- 30°C to 225°C
- 40°C to 80°C
- 30°C to 80°C
- 70°C to 180°C
- 30°C to 110°C
Short-time peak temp
150°C
180°C
350°C
100°C
100°C
225°C
150°C
Tensile Strength (N/mm2)
17
20
20
17
30
8
25
Tensile elongation (%)
150 to 500
450
400
300 to 700
800
250
450
Abrasion
moderate
good
moderate
good
excellent
moderate
very good
Resistance to flex cracking
good
very good
good
moderate
-
bad
good
Elongation/Tensile strength
good
good
good
good
excellent
bad
good
Flexibil ity
moderate
good
moderate
as required
good
good
good
Notch strength / strength of struc ture
good
moderate
almost good
moderate
excellent
moderate
good
Resistance to light
good
excellent
excellent
good
good
excellent
moderate
Resistance to oxi dising
good
excellent
excellent
good
good
very good
moderate
Resistance to ozone
very good
excellent
excellent
good
good
excellent
moderate
Resistance to wear/tear
-
good
almost good
good
excellent
bad
very good
Weathering effect
good
excellent
excellent
good
moderate
excellent
good
Lyes
bad
excellent
very good
moderate
not suitable
not suitable
good
Petrol
good
not suitable
excellent
not suitable
very good
not suitable
not suitable
Benzole
good
not suitable
good
not suitable
not suitable
not suitable
not suitable
Foodstuffs
not suitable
suitable
not suitable
not suitable
not suitable
excellent
suitable
Solvents, aliphatic
good
bad
very good
not suitable
very good
not suitable
not suitable
Solvents, aromatic
good
not suitable
good
not suitable
moderate
not suitable
not suitable
Solvents, halogen
not suitable
not suitable
good
not suitable
bad
not suitable
not suitable
Oils and greases
very good
bad
good
conditional
very good
good
not suitable
Acids
moderate
very good
very good
moderate
not suitable
not suitable
conditional
Water
moderate
very good
good
excellent
not suitable
good
very good
Properties
Resistance to
It is not possible to undertake any warranty for the stated properties as practical use is sub ject to temperature, concentration etc.... GMT RUBBER-METAL-TECHNIC LTD. The Sid in gs , Sta t io n Road , Guise ley , Leeds , West Yor ks hi r e, LS20 8BX, U.K. Tel: +44 (0)1943 870670 Fax: +44 (0)1943 870631 E-Mail:
[email protected] Web: www.gmt.gb.com
Page 1-3 / Version 1.4
