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Natural Rubber vs Synthetic Rubber

What are difference between natural rubber vs synthetic rubber? Natural rubber is produced naturally from the native Brazilian plant Hevea brasiliensis. Synthetic rubber is artificially produced from a variety of polymers which provides the rubber its properties. The most commonly referred to synthetic rubber is synthetic polyisoprene (abbreviated IR), created as a synthetic alternative to natural […]

Can Rubber Freeze in Low Temperature?

If you or your company transports or manufactures rubber parts such as seals in a cold environment then you may find the information in this article educational and useful. The importance of understanding how temperature may affect your seal is crucial. If your seal reaches -29 °C or lower temperatures then your seal may not recover. This […]

Where Rubber Comes From

Where Rubber Comes From A majority of the people you talk to would be shocked if you were to tell them where rubber comes from. Natural rubber actually comes from a tree known as Hevea brasilensis. Hevea brasilensis originated in Brazil but, now the tree can be found in many countries near the equator such […]

What is Rubber Used For?

What is Rubber Used For? Rubber is seen in almost every product you see in your daily life. For example, if you drive a car you are relying on multitudes of rubber products every day. Rubber parts found in cars include tires, hoses, gaskets, covers, and bumpers. When you go to an airport, you will […]

Sourcing Offshore Manufacturers

Benefits of Sourcing Offshore Manufacturing Cheap labor is virtually synonymous to offshore manufacturing. To be competitive on the global stage, corporations need globally competitive prices. For some, saving costs on their supply chain might be the saving grace of their business. There are risks to sourcing from offshore manufacturers, but if you educate yourself and […]

NVH Rubber Bumper Design: A Case Study

NVH Rubber Solution: Rubber Bumper Case Study A while back one of our customers was designing a rubber part for an automotive OEM and was looking for solutions to the rubber part’s squeaking problem. This part was meant to be a shock absorber on a vehicle bodyside, but previous iterations of the rubber bumper made […]

Why Rubber Is Used As Vibration Absorbers

Why Is Rubber Used As Vibration Absorbers? Rubber is used as vibration absorbers, because rubber has a relatively high shear modulus compared to other materials. That means when a rubber material is shear stressed, i.e. stressed parallel to its cross-section, rubber can be stressed more before it becomes permanently deformed. In other words, when stress […]

Which Rubber is Fire Resistant

What Are the Fire Resistant Rubber? Neoprene, Viton, and silicone are all fire resistant rubber. Neoprene’s Fire Resistance Although Neoprene was designed for its various oil and chemical resistant properties, Neoprene can also withstand burning and high temperatures. Neoprene is rated for operating temperatures up to 200°F. When heated past 200°F, Neoprene may stiffen. Neoprene […]

Rubber Deterioration in an Air Oven – Test Method

Classification Systems are important for making good quality rubber products.  ASTM – Rubber Guidelines are necessary in ensuring that proper values are not only repeatable but accurate in an lab environment.  Coi Rubber also recommends other testings just as JIS, MILSPEC, and many other OEM guideline, however, a proper ASTM – Rubber Guildline must be […]

Rubber Property – Effects of Liquids – D471

This standard is issued under the fixed designation D 471; the number immediately following the designation indicates the year of original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A superscript epsilon (e) indicates an editorial change since the last revision […]

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