In the industrial field today, heat-resistant rubber sheet is widely used in various industries such as automotive, aerospace, and electronics due to its excellent high-temperature resistance, good physical and mechanical properties, and stable chemical properties.

However, as technology advances and market demand diversifies, the performance requirements for heat-resistant rubber sheet are also increasing. One important indicator is its density.

The density of heat-resistant rubber sheet is generally between 1.3 and 1.8 grams per cubic centimeter. For rubber sheets, density directly affects key performance indicators such as sealing, shock absorption, and weight. A low-density heat-resistant rubber sheet may mean a lighter weight and better elasticity, but it may also sacrifice certain wear resistance and compressive strength. Therefore, selecting the appropriate density of heat-resistant rubber sheet is crucial depending on the specific application.

What are the factors that affect the density of heat-resistant rubber sheet?

The choice of raw materials is the primary factor that determines the density of heat-resistant rubber sheet. Common heat-resistant rubber materials include silicone rubber, fluorine rubber, and EPDM rubber, and their respective molecular structures and filler contents all affect the final product’s density. In addition, processing techniques such as vulcanization time and temperature also affect the density of the rubber sheet, as high temperature and long-time vulcanization make the rubber material more compact.

In actual cases, we often see differences in the application of heat-resistant rubber sheets with different densities.

For example, in the automotive industry, engine compartment components usually require high-density heat-resistant rubber sheets to ensure good oil resistance and mechanical strength. In the electronics industry, lightweight low-density heat-resistant rubber sheets are preferred because they help reduce product weight and improve heat dissipation efficiency.

Jingdong Rubber Co., Ltd. is a professional rubber sheet manufacturer, producing silicone rubber sheet, natural rubber sheet, fluorine rubber sheet, Neoprene Rubber Sheet, insulating rubber sheet,EPDM rubber sheets, oil-resistant rubber sheets, anti-static rubber sheets, flame-retardant rubber sheets, conductive rubber sheets, anti-slip rubber sheets, and cowshed mats, etc. with nearly 40 years of industry experience, are popular both at home and abroad. If you need any of our products,please send emails to sales@jingdongrubber.com.

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