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Overview of Rubber Seal Hardness
Overview of Rubber Seal Hardness Rubber seal hardness is a crucial performance indicator, directly impacting the sealing efficiency and service life. The hardness is typically measured using Shore hardness, with Shore A and Shore D being the most common scales. Shore A is used for softer rubber materials, while Shore D is applied to harder rubber and plastics. Shore A Hardness Range: Generally ranges from 0 to 100, with higher numbers indicating harder materials. Application: Suitable for evaluating softer materials such as Nitrile Rubber (NBR), Fluoroelastomer (FKM), and Silicone Rubber (VMQ). Typical Values: Nitrile Rubber (NBR): 40A to 90A Fluoroelastomer (FKM): 60A to 90A Silicone Rubber (VMQ): 30A to 80A Shore D Hardness Range: Generally ranges from 0 to 100, with higher numbers indicating harder materials. Application: Suitable for evaluating harder materials like some thermoplastic rubbers and rigid rubbers. Typical Values: Thermoplastic Rubber (TPR): 30D to 60D Thermop...
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