Vapor Smoothing for Nylon Parts

Unique Process of Vapor Smoothing for SLS Parts

What is Vapor Smoothing?

Vapor smoothing is our premium finishing option for SLS PA12 nylon. Through a controlled vapor process, the rough powdery surface is melted and reformed into a uniform, satin-gloss finish. This produces parts that look and feel more like molded components, with enhanced durability, lower friction, and improved chemical resistance.

How the Process Works

Parts are prepared with temporary hang points and loaded into a sealed chamber. Inside, an eco-friendly vapor is released under heat and pressure. As the vapor condenses onto the surface, it briefly softens the nylon, allowing the texture to flow and seal. Once cycled and dried, the parts emerge with a smooth, sealed surface. Because this step involves specialized equipment, we partner with DyeMansion in Austin, TX, to ensure consistent, production-quality results.

Appearance and Finish

• Premium Look – Surfaces are transformed into a sleek, semi-gloss finish with reduced grain.

• Smooth to Touch – Parts feel softer and more refined compared to shot peening or natural finishes.

• Light Reflective – The finish creates a subtle sheen that enhances the professional look of each part.

• Black Dye Only – Vapor smoothing currently requires black-dyed PA12 nylon; white nylon will discolor under smoothing.

• Witness Mark – Each part will carry a small, discreet mark where the hang point was removed.

Benefits of Vapor Smoothing

• End-Use Ready – Best choice for customer-facing or consumer applications.

• Performance Boost – Lower friction surfaces improve wear and ease of cleaning.

• Chemical Resistance – Smoothed parts stand up better to oils, greases, and solvents.

• Durable Finish – The sealed surface reduces porosity, enhancing long-term strength and stability.

• Consistency – Dyed black parts show richer color and more uniform tone after smoothing.