Finishing & Surface Treatment Services

Surface Post-Processing Treatment for Plastic & Metal Parts

Upgrade parts into production-ready components with professional post-processing for 3D printed plastics and metal parts. Improve surface smoothness, visual quality, durability, and application performance with consistent, repeatable finishing routes—ideal for prototypes, low-volume production and batch programs.

Why Post-Processing with Additive3D Asia

Post-processing is where parts become customer-ready. Whether you need an injection-moulded-like finish on nylon 3D printed components or corrosion-resistant coatings for metal parts, we’ll recommend the right surface treatment based on your material, geometry, quantity, and acceptance criteria.

Production-Ready Appearance

Premium finishes for presentation models, end-use parts, and brand-facing products.

Functional Surface Performance

Improve cleanability, reduce porosity, enhance wear and chemical resistance.

Repeatability for Batches

Controlled finishing routes for consistent results across production quantities.

Related capabilities: 3D Printing Services, CNC Machining, Injection Molding, Sheet Metal Fabrication.

Plastic Post-Processing (3D Printing)

Optimised finishing for polymer additive manufacturing (e.g., HP MJF, SLS, SLA, FDM). Ideal for nylon and engineering plastics when you need improved surface feel, tighter visual quality, or a premium “production look”.

Spray Painting

Custom colour matching, matte/gloss finishes, textured effects, and protective top coats for better wear and UV resistance.

Vapor Smoothing

Reduces micro-porosity and visible texture to create a smoother, sealed surface—often used to achieve an injection-moulded-like finish on selected plastics.

Metallisation

Metalised coating for a premium metallic look (decorative) on polymer parts—ideal for display models and product enclosures.

Sand / Bead Blasting

Uniform matte finish and surface cleaning—commonly used as preparation before dyeing, painting, or metallisation.

Colour Dyeing

Uniform colouring for polymer parts (commonly nylon) for consistent aesthetics across batches without thick coating buildup.

Tumbling

Batch finishing to smooth edges and improve surface consistency—excellent for larger quantities and repeatable results.

Common plastic materials: PA12 / PA11 nylon, TPU (process dependent), engineering polymers and specialty plastics (project dependent).

Metal Post-Processing (Surface Treatment & Finishing)

Surface treatments for metal parts that require corrosion resistance, controlled texture, cosmetic refinement, and functional performance. Suitable for CNC-machined components and industrial metal parts.

Sand / Bead Blasting (Prep)

Removes oxidation and machining marks; creates consistent texture; improves coating adhesion.

Polishing & Brushing

Reduces roughness and delivers consistent brushed or polished finishes for visible components.

Anodising (Aluminium)

Improves corrosion resistance and surface durability; optional colour finishes available.

Powder Coating

Durable protective coating for industrial applications; excellent wear resistance and consistency.

Electroplating / Plating Options

Functional or decorative metallic layers for corrosion resistance, conductivity, or premium appearance.

Passivation (Stainless Steel)

Enhances corrosion resistance by removing surface contaminants and supporting the passive layer.

Common metal materials: Aluminium, stainless steel, mild steel (other alloys available on request).

Before & After: Surface Finish Upgrades

Showcase the impact of post-processing—ideal for helping customers choose the right finishing route. Replace the image URLs below with your WordPress Media Library links.

Before and after surface post processing for 3D printed plastic parts
Plastic: Blasting → Dyeing / Painting
Before and after vapor smoothing for nylon 3D printed components
Plastic: Vapor Smoothing Upgrade
Before and after metal surface treatment anodising and coating
Metal: Prep → Anodise / Coat

Our Post-Processing Workflow

1 — Part Review & Quote

Share CAD/photos, material, quantity, target finish (matte/gloss/texture), and application requirements.

2 — Finish Recommendation

We recommend the best finishing route for plastic or metal, including preparation steps and expected outcomes.

3 — Surface Preparation

Cleaning and conditioning (e.g., blasting, tumbling) to ensure consistent texture and coating adhesion.

4 — Finishing Treatment

Apply your selected process: painting, vapor smoothing, dyeing, metallisation, anodising, coating, plating, etc.

5 — Quality Check

Visual and handling checks for finish level, colour consistency, and any agreed acceptance criteria.

6 — Packaging & Delivery

Protective packaging for finished surfaces with delivery coordination for Singapore and overseas.

Surface Post-Processing in Singapore (Local Support)

Serving customers across Singapore and the region with engineering support, fast turnaround options (project dependent), and finishing recommendations aligned to production requirements. If you need a specific surface standard, colour reference, or coating performance requirement, share your details and we’ll advise the best route.

Related Services

Customers commonly pair post-processing with our manufacturing services to achieve complete end-to-end delivery.

Frequently Asked Questions

What information do you need to recommend the right finishing?

Material type, quantity, part photos/CAD, desired look (matte/gloss/texture), and whether the finish is cosmetic or functional.

Which finishing works best for a smoother “injection-moulded-like” surface on 3D printed plastics?

Vapor smoothing is commonly used on selected plastics to reduce surface texture and micro-porosity (project and material dependent).

Do you offer consistent colour finishing for nylon parts?

Yes. Colour dyeing provides a uniform look for many nylon parts and is suitable for batch programs where consistency matters.

Can you support both cosmetic and protective finishes for metal parts?

Yes. Options include blasting, polishing/brushing, anodising, powder coating, plating, and passivation depending on material and requirements.

Do you handle post-processing for batch production quantities?

Yes. Tumbling, dyeing, blasting, and controlled finishing routes can be applied for repeatable outcomes across batches (project dependent).

Ready to Upgrade Your Surface Finish?

Send your part details and target finish. We’ll recommend the best post-processing route for plastic (3D printed) or metal parts—aligned to your quality, aesthetics, and budget.

Tip: For faster quoting, include quantity, material (plastic/metal), desired finish (matte/gloss/texture/colour), and application environment.

Metal Post Processing:

Metal Surface Finishing