Natural Rubber Sheets

Natural rubber is the only naturally occurring rubber that is used for commercial purposes. The rubber plant is native to South America of the Amazon Valley region; however, many plantations have been grown in India, Indonesia, Thailand, Sri Lanka and Malaysia. This is the reason that natural rubber is also known as Indian Rubber. The Natural rubber (NR) is a polymer of organic compound isoprene with minor impurities of other organic compounds along with water.
The NR is derived in the form of latex form a selected group of trees. The latex is sticky and milky colloid when extracted from bark of the trees and collected in a vessel. This entire process is called “Tapping” and the extracts are later refined for the production of rubber.
PROPERTIES :
The natural rubber has several unique properties:
• It is used for manufacture of many other products and rubber types, by blending them with other ingredients in appropriate proportions.
• The NR sheets have high abrasion resistance, elongation and Tensile strength.
• It has an extremely broad hardness range and has the highest resilience among all he rubbers.
• The NR is strong and can endure extreme temperatures ranging from -50C to +90C.
• It is known to have extreme tear strength and fatigue resistance with high compression enabling it to work under low temperatures for dynamic applications.
• The natural sheets are susceptible to vulcanization and ozone attack which causes cracking.
• They are stretchy, flexible and water proof by nature.
USES
• Door and window profiles
• Hoses
• Belts
• Gaskets
• Matting
• Flooring
• Dampeners

In the field of medical, household and industrial world it has the following usage:
• Gloves
• Toy balloons
• Adhesives
• Rubber bands
• Pencil erasers

PROPERTY	RATING
Acids, Dilute	Fair to Excellent
Acids, Concentrated	Poor to Good
Acids, Organic (Dilute)	Fair to Good
Acids, Organic (Concentrated)	Good
Acids, Inorganic	Good
Alcohol	Good to Excellent
Aldehydes	Good
Alkalies (Dilute)	Fair to Excellent
Alkalies (Concentrated)	Fair to Good
Amines	Poor to Fair
Animal and Vegetable Oils	Poor to Good
Brake Fluids, Non-Petroleum Based	Good
Diester Oils	Poor
Ester, Alkyl Phosphate	Poor
Ester, Aryl Phosphate	Poor
Ethers	Poor
Fuel, Aliphatic Hydrocarbon	Poor
Fuel, Aromatic Hydrocarbon	Poor
Fuel, Extended (Oxygenated)	Poor
Halogenated Solvents	Poor
Hydrocarbons, Halogenated	Poor

PROPERTY	RATING
Colorability	Poor
Flame Resistance	Fair to Good
Gas Permeability	Fair to Good
Odor	Good to Excellent
Ozone Resistance	Poor
Oxidation Resistance	Good
Radiation Resistance	Fair to Good
Steam Resistance	Good
Sunlight Resistance	Poor to Fair
Taste Resistance	Fair to Good
Weather Resistance	Poor to Fair
Water Resistance	Excellent

CHEMICAL AND MECHANICAL PROPERTIES

PROPERTY	VALUE/RATING
Durometer Range	30 – 95 Shore A
Tensile Strength Range	500 – 3,500 PSI
Elongation Range (%)	300%- 900%
Abrasion Resistance	Good to Excellent
Adhesion to Metal	Excellent
Adhesion to Rigid Materials	Excellent
Compression Set	Excellent
Flex Cracking Resistance	Good to Excellent
Impact Resistance	Good to Excellent
Resilience/Rebound	Excellent
Tear Resistance	Good to Excellent
Vibration Dampening	Good to Excellent
Ketones	Fair to Good
Lacquer Solvents	Poor
LP Gases & Fuel Oils	Poor
Mineral Oils	Poor
Oil Resistance	Poor
Petroleum Aromatic	Poor
Petroleum Non-Aromatic	Poor
Silicone Oil	Good
Solvent Resistance	Poor

THERMAL PROPERTIES

PROPERTY	VALUE
Low Temperature Range	(-20 º F) to (-70 º F)
Minimum for Continuous Use (Static)	(-60 º F)
Brittle Point	(-80 º F)
High Temperature Range	+180 F to +200 º F
Maximum for Continuous Use (Static)	+180 F

STANDERD LENGTH

10 METERS

11 YARD

33 ft

STANDERD LENGTH

1.2/1.4/1.5/ METERS

1.33/1.53/1.64 YARD

4/4.6/4.62 ft