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Natural Rubber

Natural Rubber Parts & Rollers

Natural Rubber

Natural Rubber is made from the latex sap of rubber trees from Thailand and other tropical countries. The vulcanization or curing of natural rubber was discovered by Charles Goodyear in 1839, and natural rubber is still used today because it possesses excellent properties beneficial to industry. During World War I, the supply of natural rubber was threatened or eliminated so alternative rubber sources were sought to replace the scarce natural tree gum material. Synthetic elastomers were developed in response to replace this limited natural supply. 

While synthetic elastomers are used in the majority of rubber applications today due to their consistency, reliability, and targeted physical properties, natural rubber is still used across the industrial spectrum. Natural rubber is a very tough material that is well suited for many printing and industrial applications.   

NR is resistant to denting and tear but will not tolerate exposure to oil or ozone. It can be difficult to process because, like any crop, the natural base latex material can be inconsistent from year to year. 

Contact Us to see if Natural Rubber is the right compound for your application.

Natural Rubber vs. Nitrile Properties 

(5) = EXCELLENT (4) = ABOVE AVERAGE (3) = AVERAGE (2) = FAIR (1) = POOR

Rubber Compound

Nitrile Natural Rubber
  BN NR
Physical Properties    
Hardness Range Shore A 20-95 25-99
Hardness Range P&J 0-200 5/250
Abrasion Resistance 3 5
Tear Resistance 3 5
Load Bearing 4 5
Hysteresis 2 5
Resistance to Denting 3 5
Maximum Service Temperature (C/F) 121/250 100/212
Ozone Resistance 1 1
Resiliency 3 5
Solvent Resistance    
Acids 2 3
Caustics 3 3
Paraffinic Hydrocarbons 5 1
Aromatic Hydrocarbons 3 1
Chlorinated Hydrocarbons 1 1
Water 4 5
Ketones 2 5
Alcohols 5 5
Esters 1 5
Recommended Applications    
Coating/Varnishing  
Embossing    
Flexography
Laminating  
Laser Engraving  
Metal Decorating  
Offset Printing    
Paper Making Industry
Plastics    
Plate Processors  
Steel Mill Rollers
Textile Rollers    
Wood Industry  
Contact Us at Rol-Tec

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