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Synthetic Rubber, Natural Rubber, Natural Rubber, Nitrile Rubber, Epdm Rubber, Hypalon Rubber, Polyurethane Rubber, Mumbai, India

- O Rings, U Seals, V Seal, Lip Seal,    Wiper Seals

- Oil Seals

- Diaphragms
- Gasket
- Metal to Rubber Bonded Products
- Extruded Products
- Pharmaceutical Filtration Rubber Parts
- Electrical Push Button Switches   Rubber Parts
 
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O Rings, Industrial Rubber Parts, Extruded Rubber Parts, Pharmaceutical Rubber Parts, Bellows, Gaskets, U Seals, Diaphragms
Comparative Properties of Natural & Various Synthetic Rubber
PROPERTIES NATURAL
RUBBER
 Nitrile ADIPRENE
polyure
thane 		HYPALON
chloro-
Sulfonated
Polyethylene
NORDEL
ethylene
Ter
Polymer 		NEO- PRENE
Chloro-pene 		Silicone VITON Co-Polymer of vlnylidene fluoride &
hexafluoro-propylene
Hardness Range (duro-meter A&D)
 30 - 90 A 30-90A 60.99+A
(up to 80D)
40-95A 40-90A 40-95A 30-85A 60-95A
Tensile Strength (psi) Pure gum
 Over 3000 Over 2000psi Over 4000 Over 2500 --- Over 3000 Over 500
psi		 Over 2000
Black loaded stocks Over 3000 Over3000 psi -- Over 3000 Over 3000 Over 3000 Over 1400psi Over 2000
Specific Gravity
(Base Material) 		0.93 0.98 1.06 1.12-1.28 0.86 1.23 - 1.85
Vulcanising Properties Excellent Excellent Excellent Excellent Excellent Excellent Excellent Good
Adhension to Metals Excellent Excellent Excellent Excellent Good to
Excellent		 Excellent Poor Good to
Excellent
Adhension to Fabrics Excellent Excellent Excellent Good Good Excellent Poor Good to Excellent
Tear Resistance Good Excellent Excellent Fair Good Good Poor Good
Abrasion Resistance Excellent Excellent Outstanding Excellent Excellent Excellent Poor Good
Compression Set Good Good Fair Fair Good Fair to
Good		 Good Fair to Good
Rebound Cold Excellent Good Poor to V. L. Temp Good Very Good Very Good Fair to Good Good
Hot Excellent Good Good at R.T. Good Very Good Very Good Fair to Good Excellent
Dielectric Strength Excellent Fair to
Good		 Excellent Excellent Excellent Good Excellent Good
Electrical Insulation Good to
Excellent		 Fair to
Good		 Fair to Good Good Excellent Fair to
Good		 Excellent Fair to Good
Permeability to gases Fair Excellent Fair Low to
V. L.		 Fair Low Poor Very low
Acid Resi- stance Dilute Fair to
Good		 Good Fair Excellent Excellent Excellent Good Excellent
Concentrated Fair to
Good		 Fair to
Good		 Poor Very Good Excellent Good Good Excellent
Solvent Resistance
Aliphatic hydrocarbons
 Poor Good Excellent Good Poor Good Good Excellent
Aromatic hydrocarbons Poor Excellent Fair to Good Fair Poor Fair Good Excellent
Oxygenated (ketones, etc.) Fair to
Good		 Poor Poor Poor Good Poor Good Poor
Lacquer solvents Poor Good Poor Poor Poor Poor Good Poor
Resistance to : Swelling in lubricating oil Poor Good Excellent Good
to Excellent		 Poor Good Good Excellent
Oil & Gasoline Poor Very Good Excellent Good Poor Good Good Excellent
Animal and Vegetable oils Poor to Good Poor Excellent Good Good Good Good Excellent
Water absorption Very Good Good

Goodat R.T.
Poor at 212�F.

Very Good Very Good Good Excellent Very Good
Oxidation Good Good Excellent Excellent Excellent Excellent Excellent Outstanding
Ozone Fair Good Excellent Outstanding Outstanding Excellent Outstanding Outstanding
Sunlight aging Poor Good Good Outstanding Outstanding Very Good Outstanding Very Good
Heat Aging Good Good Good Excellent Excellent Excellent Outstanding Outstanding
Flame ** Poor Poor to Good Fair (Will
melt)		 Good Poor Very Good Poor Excellent
Heat Good Good Good Excellent Excellent Very Good Excellent Outstanding
Cold Excellent Fair to Good Excellent Good Excellent Good Excellent Good