Question: How small of a micro feature can be molded on a medical silicone part?
Answer: Silicone feature size is limited by the geometry, tooling, and process. Silicone will replicate surface finish features with less than 0.0005 inches in size. Features larger than 0.005 inch can often be manufactured with some considerations. Part geometries such as undercuts, large L/D pins and bosses can cause challenges in demolding, maintaining tool integrity, and forming full features without bubbles.
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