> For the complete documentation index, see [llms.txt](https://wiki.polymaker.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://wiki.polymaker.com/printing-tips/post-processing/painting.md).

# Painting

### **Primer Application for 3D Prints**

To prepare prints for painting, begin with a flat gray primer or primer filler. Ensure parts are fully assembled, sanded smooth, and free of debris. Use compressed air or a powerful blower to remove residual dust.

**Application Process**:

1. **Environment**: Work in a well-ventilated outdoor area or spray booth with a protective tarp.
2. **Spray Technique**: Apply a light, even coat from **6–12 inches away** to avoid drips.
3. **Drying Time**: Allow **2+ hours** for the primer to cure before painting.

**Primer Filler Advantages**:

* **Surface Refinement**: Sand after drying (e.g., 800–1200 grit) to eliminate minor imperfections.
* **Multi-Step Smoothing**: Apply primer filler, sand, clean, and repeat for a near-flawless finish. Note that excessive sanding may compromise fine details.

### **Painting Techniques**

**Airbrushing**:

* **Strengths**: Delivers even coverage and gradient shading; ideal for large surfaces.
* **Limitations**: Less precise for intricate details compared to hand painting.

**Hand Painting**:

* **Use Cases**: Small areas, fine lines, or detailed features (e.g., eyes, textures).
* **Brush Selection**: High-quality, thin brushes improve precision.

**Paint Options**:

* **Acrylics**: Affordable and widely available; practice required for smooth application.
* **Model Paints**: Higher pigment density for professional results.
* **Clear Coats**: Finish with satin or glossy spray to seal and protect the paint.

**Material Considerations**:

* **Flexible Filaments**: Avoid acrylics, as they crack under flexion. Use specialized flexible paints instead.
* **Drying Time**: Patience is critical - rushing causes clumping or uneven textures.

**Skill Development**:

* **Practice**: Experiment with gradients, masking, and layering to refine techniques.
* **Tutorials**: Study professional guides for complex tasks like eye detailing or texture replication.

**Summary Recommendations**

* **Primer**: Essential for paint adhesion; primer filler enhances surface quality.
* **Tool Selection**: Combine airbrushing (broad coverage) and hand painting (details) for optimal results.
* **Material Awareness**: Match paints to filament properties to prevent cracking or peeling.

Lastly, many have benefitted from a YouTube tutorial video titled "GalactiCustoms: 1/6 Paint Tutorial: Obi-Wan Kenobi- Pt 3 Eyes," which provided valuable insights into painting eyes and significantly enhanced the appearance of my painted parts.

{% embed url="<https://www.youtube.com/shorts/y0yn1DaspQc>" %}


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