Extruded rubber plays an important role in many industries. This versatile material is made by forcing raw rubber through a die with the desired shape. The die is smaller than the raw rubber, which allows the rubber to take its shape. The extruded rubber is then cut and sold for use in various applications. Below are six facts about extruded rubber parts.
#1) Made With Heat and Pressure
Extruded rubber parts are made with heat and pressure. The process involves an extrusion machine with a hopper. The extrusion machine will then heat the raw rubber while forcing it through the die. Heat will make the rubber softer and more pliable so that it will squeeze through the die.
#2) Solid and Hollow Profiles
You can find extruded rubber parts with different profiles. Some of them are made with a solid profile, whereas others are made with a hollow profile. Those with a solid profile are typically stronger and more durable. Extruded rubber parts with a hollow profile, on the other hand, are lighter and compress more easily under pressure.
#3) Cost-Effective
Extruded rubber parts are very cost-effective. Using an extrusion machine, manufacturing companies can mass-produce extruded rubber parts at a low cost. As the shaped rubber exits the extrusion machine, it will come out as a single continuous part in the shape of the die. This allows for a very efficient and cost-effective manufacturing process, which translates into cost-savings benefits for customers who purchase extruded rubber parts.
#4) Supports Different Materials
Not all extruded parts are made of the same material. They are available in many different materials, such as polyethylene (PE), polypropylene (PP), polyvinyl chloride (PVC), nitrile, neoprene, silicone and more. The production process typically remains the same. Each material, however, has its own unique characteristics.
#5) Vulcanized
Many extruded rubber parts are vulcanized. Vulcanization is a process that’s designed to strengthen and improve the physical properties of rubber parts. It involves the use of heat and chemicals, such as sulfur. When heated and exposed to sulfur, rubber becomes stronger and more durable.
#6) Resistant to Moisture and Chemicals
Extruded rubber parts are highly resistant to moisture and chemicals. They can withstand exposure to contaminants such as these without degrading. As a result, they are commonly used to seal spaces. Door and window gaskets, for instance, are often made of extruded rubber. They will continue to provide a tight seal while preventing air.