# Tin Brass

Lost Wax Casting

**Material Info**

### About

**Tin Brass** is a copper-based alloy containing approximately 80% copper, 15% zinc, and 5% tin. It is valued for its warm metallic appearance, fine detail resolution, and premium finish, making it ideal for jewelry, accessories, decorative objects, and miniatures.

This material captures intricate details while delivering the look and feel of solid metal parts. Over time, Tin Brass may develop a natural patina, which can be polished to restore its original luster. During finishing, external surfaces are polished, while tight internal features may remain unpolished.

More information about this printing technology can be found [Here](/content/3d-print-material-technology/wax-casting/index.html).

### Color & Finishes

**Natural**

Natural 3D Brass printing offers a light polish, resulting in a somewhat rough surface with a matte finish.

**Polished**

Hand-polished to achieve a smooth, shiny finish; lightly smooths sharp edges and fine details.

### Technology

- Lost Wax Casting

[Brass - Technical Data Sheet](/content/wp-content/uploads/2020/12/Brass-Technical-Data-Sheet.pdf)

### Description

Material Highlights

Jewelry, fashion accessories, home decor, prototypes, miniatures

Handling and Care

High-quality, shiny finishing, intricate details, and great value are all part of 3D Brass printing.

## Design Guidelines

### Bounding Box

**Maximum Bounding Box** 89 × 89 × 100 mm  
75 × 75 × 40 mm (Interlocking Parts)  
**Minimum Bounding Box** 2.4 × 2.4 × 0.6 mm

### Walls

**Supported Walls**  
0.6 mm (Natural)  
0.8 mm (Polished)  
**Unsupported Walls**  
0.6 mm (Natural)  
0.8 mm (Polished)

### Wires

**Supported Wires**  
0.8 mm  
**Unsupported Wires**  
1.0 mm

### Details

**Embossed Details**  
0.35 mm high & wide (Natural)  
0.4 mm high & wide (Polished)  
**Engraved Details**  
0.3 mm high & wide (Natural),  
0.35 mm high & wide (Polished)

### Escape Holes

**Single Escape Hole Diameter**
4.0 mm  
**Multiple Escape Hole Diameter**
2.0 mm

### Clearance

**Minimum**  
0.3 mm

### Sprues

**Not Supported**

### Interlocking & Enclosed Parts

**Interlocking** Not Supported

**Enclosed** Not Supported

### Parts in File

Up to two identical parts (like earrings or cufflinks) may be uploaded in the same model file during 3D Brass printing.

### Accuracy

During lost wax casting, the metal shrinks by approximately 1–1.5%.

## Related Materials

**Pure Copper (100% Copper)**  
**Application:** Heat Exchangers, Marine Accessories, Home Decor, Prototypes

**Platinum**  
**Application:** Women's and Men's Jewelry including Bracelets, Pendants, Rings, Cufflinks, and Tie Bars