Micro cellular rubber and micro cellular polymer are both materials that can be used in the manufacturing of footwear. However, there are some differences between the two.
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Composition: Micro cellular rubber is made from natural or synthetic rubber, whereas micro cellular polymer is made from a variety of materials, including polyurethane, EVA (ethylene-vinyl acetate), and other synthetic materials.
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Density: Micro cellular rubber is denser than micro cellular polymer, which means that it may offer better durability and support. However, it can also be heavier and less comfortable.
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Flexibility: Micro cellular polymer is generally more flexible than micro cellular rubber, which can make it more comfortable and easier to wear. However, it may not offer the same level of support as micro cellular rubber.
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Breathability: Both materials can be made with breathable properties, but micro cellular polymer may be more effective at keeping the feet cool and dry, as it can be designed with specific air channels or perforations.
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Cost: The cost of micro cellular rubber can vary depending on the type and quality of rubber used, but it is generally more expensive than micro cellular polymer, which can be made from more affordable synthetic materials.
In summary, micro cellular rubber is denser, more supportive and durable, while micro cellular polymer is generally more flexible, lightweight, and breathable. The choice between the two may depend on the intended use of the footwear, personal preferences, and cost considerations.