3D Printing Post-Processing: A Practical Choice Based on Your Application

3D Printing Post-Processing: A Practical Choice Based on Your Application

The overall quality of a 3D printed part is determined not only by the print itself, but also by which post-processing option you choose.

When downstream processes such as assembly, painting, or exhibition are considered, post-processing becomes more than a simple finishing step—it becomes a purpose-driven decision.

To better support diverse customer needs, Creallo has restructured its previous “basic post-processing” into two selectable options: Sand Blasting and Surface Finishing, allowing customers to choose only the level of finishing they actually need.

Sand Blasting – Standard Post-Processing for Internal Parts

Sand blasting is a post-processing method that removes support marks, surface stains, and residual particles remaining after 3D printing.
It is the most commonly used standard finishing method across 3D printing services in Korea.

• Removal of support marks
• Elimination of surface contamination and stains
• Uniform, matte surface finish

This option is well suited for functional verification, internal components, and assembly test parts, where quick confirmation of geometry is required.

As production volume increases, process efficiency improves, allowing up to 15% cost savings compared to the previous basic post-processing option. Compared to surface finishing, sand blasting can be up to 40% more cost-effective and enables lead times shortened by two days or more.

Surface Finishing – Precision Post-Processing for Visual Quality

Surface finishing is an advanced post-processing option that adds expert manual sanding and surface refinement after support removal.

• Precision sanding after support removal
• Reduction of visible print layers and surface homogenization
• Surface quality suitable for immediate painting

For these reasons, surface finishing is ideal for display models and parts where visual appearance is a key evaluation criterion.

(Surface finishing is available only for orders produced locally in South Korea.)

Sand Blasting vs. Surface Finishing: Selection Guide

Choose Post-Processing Based on Your Application

With the expansion of post-processing options, 3D printing post-processing is no longer a fixed standard, but a flexible choice based on your specific application and requirements.

Creallo will continue refining its service standards and technical guidance to help customers make well-informed decisions that balance quality, cost, and lead time.

2026 New Year's 3D Printing Promotion

To celebrate the new year, Creallo is offering a 20% discount on domestic 3D printing services.

This promotion applies to both sand blasting and surface finishing options, providing an opportunity to directly compare the differences between the two post-processing methods using actual printed parts.

• Applicable to domestic 3D printing services
• 20% discount applied to both sand blasting and surface finishing
• Enables side-by-side comparison using identical designs

This limited-time promotion runs throughout January 2026. We invite you to experience firsthand how post-processing choices impact final part quality.