EVA blocks with different hardness refer to variations in the firmness or density of the material. Here are some differences you may observe:
1. Softness
EVA blocks with lower hardness will feel softer and more cushioned when compressed. They provide enhanced comfort and shock absorption, making them suitable for applications like shoe insoles or padding materials.
2. Firmness
EVA blocks with higher hardness will be firmer and less compressible compared to softer ones. They offer greater support and stability, making them ideal for applications that require structural integrity, such as orthotic devices or industrial components.
3. Compression resistance
Higher-hardness EVA blocks have better compression resistance, meaning they can withstand heavier loads without losing their shape or resilience. This property is valuable in scenarios where long-term durability is important.
4. Flexibility
Softer EVA blocks tend to be more flexible and easily bendable, allowing them to conform closely to irregular surfaces or body contours when used in products like knee pads or helmet liners.
5. Moldability
Blocks with lower hardness levels are generally easier to mold and shape due to their increased pliability during heating processes like vacuum forming or heat molding for customization purposes.
It’s important to note that the specific range of hardness varies based on manufacturers’ specifications and can be measured using scales such as Shore A (for soft materials) or Shore D (for harder materials). The choice of EVA block hardness depends on the intended application requirements, user comfort preferences, and specific industry standards if applicable.
Related product links: https://www.eva-block.com/product/cad-cam-blockers-eva-foam-block-for-milling/.