Shore A Hardness of Silicone Rubber – Visual Guide

What Does Shore A Hardness Mean?

Shore A hardness measures how soft or firm silicone rubber is. Lower values mean softer and more flexible, while higher values mean firmer and more rigid. This scale helps customers choose the right silicone material for comfort, sealing, durability, or structural support.

Shore A Hardness Examples (30–80)

• 30 Shore A – Very soft: like a gel pad or gummy candy; ideal for baby products, medical parts, and soft-touch consumer items.

• 40 Shore A – Soft and flexible: similar to a rubber band or soft eraser; used for baby feeding products and flexible seals.

• 50 Shore A – Medium softness: like a car tire tread pressed by hand; common for kitchenware, food container gaskets, and general consumer products.

• 60 Shore A – Firm but flexible: similar to a shoe sole; suitable for industrial gaskets, O-rings, and durable sealing applications.

• 70 Shore A – Firm rubber: like a hard rubber wheel; used for vibration dampers and mechanical components.

• 80 Shore A – Very firm: feels close to rigid rubber or soft plastic; ideal for parts that must hold shape under load.

Choosing the Right Shore for You

Selecting the correct Shore A hardness is critical for product performance, comfort, and durability. With our experience in silicone rubber manufacturing, we can help you choose the perfect hardness for your application, whether it’s consumer, food-grade, medical, or industrial products. Our team ensures the final product meets your requirements and performs reliably in real-world conditions.