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Finish Strong: How Surface Finishing Enhances Plastic Component Performance

Discover how the right polishing method improves clarity, compliance, and functionality in precision plastics from prototype to production.

Surface finishing isn’t just about looks. In precision plastic components, it determines how a part performs, seals, flows, and endures inspection. In this free application note, you’ll learn how surface finishing methods like as-machined, buffed, and vapor polished directly influence fluid dynamics, sterilization, optical clarity, and regulatory compliance. All critical for applications in medical devices, diagnostics, and laboratory equipment.

What You’ll Learn

  1. How surface roughness affects fluid flow and contamination risk 
  2. The pros, cons, and best uses of as-machined, buffed, and vapor-polished finishes 
  3. How finish selection supports FDA and ISO 13485 compliance Why polishing matters for microfluidics, coatings, and inspection readiness 
  4. The best plastics for achieving optical clarity without compromising dimensional accuracy

Why It Matters

Choosing the right finish can make the difference between a compliant, high-performing product and one that fails inspection or leaks during operation. Controlled Fluidics integrates finishing into the manufacturing process ensuring clarity, consistency, and compliance at scale.

Complete the form to download your copy and design with confidence.

A person holding two clear plastic cylindrical components, showcasing one polished and one unpolished