# Somos® Watershed XC 11122

Stereolithography [SLA]

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## Material Info

### About

Somos® WaterShed XC 11122 is a clear photopolymer resin for SLA. This material offers excellent strength, durability, exceptional clarity, and consistent dimensional accuracy. It is ideal for high-quality functional prototypes and parts that require superior moisture resistance and a transparent, thermoplastic-like appearance. More information about this printing technology can be found [Here](/content/3d-print-material-technology/sla/index.html).

### Color & Finishes

**Standard**

Exceptional optical clarity, smooth high-resolution finish, low moisture absorption; ideal for lenses, fluid/airflow analysis, and investment casting patterns.

### Technology

- Stereolithography [SLA]

[Somos® WaterShed XC 11122 - EN Data Sheet](/content/wp-content/uploads/2025/05/Somos-WaterShed-XC-11122-EN-Data-Sheet.pdf)

### Material Properties

- **Tensile modulus (ASTM D638)** 2770 MPa
- **Tensile strength (ASTM D638)** 50.4 MPa
- **Elongation at break (ASTM D638)** 15.5%
- **HDT @ 0.455 MPa/66 PSI (ASTM D648)** 50°C

### Description

**Material Highlights**

Smooth high-resolution finish, consistent dimensional stability, easy post-processing; ideal for consumer products; fluid/air flow analysis; duct work; investment casting; lenses.

**Optical properties**

Index of refraction 1.514; EC (critical exposure) 11.5 mJ/cm²; Dp (depth) 6.5 mils

**Moisture resistance**

Water absorption 0.35 % (ASTM D570-98)

**Applications**

Lenses, transparent fluid/air-flow prototypes, investment-casting patterns

## Design Guidelines

### Bounding Box

**Maximum Bounding Box** 790 × 790 × 590 mm

**Minimum Bounding Box** 3.8 x 3.8 x 3.8 mm

### Walls

**Supported Walls**
- 0.6 mm
- 1 mm (Optimum)

**Unsupported Walls**
- 0.6 mm
- 1 mm (Optimum)

### Wires

**Supported Wires**
- 0.8 mm

**Unsupported Wires**
- 1.0 mm

### Details

**Embossed Details**
- 0.4 mm high & 0.4 mm wide

**Engraved Details**
- 0.3 mm deep & 0.3 mm wide

### Escape Holes

**Single Escape Hole Diameter** 5.0 mm

**Multiple Escape Hole Diameter** 4.0 mm

### Clearance

**Minimum** 0.2 mm

### Sprues

**1.3 mm diameter (or thinnest dimension if not circular)**

### Interlocking & Enclosed Parts

**Interlocking** No

**Enclosed** No

### Multiple Parts

1

### Accuracy

±0.2% (with a lower limit of ±0.2 mm)

## Related Materials

Also known as White SLA, White Resin, Somos® GP Plus 14122

**Application:** Functional prototypes, concept models, master patterns, form/fit testing, display models, snap-fit assemblies.

[Learn More →](/content/materials/somos-gp-plus-14122/index.html)

Also known as TGM-7 Tabletop Resin, high-detail SLA resin, UV-curable photopolymer.

**Application:** High-detail gray resin for miniatures & figurines.

[Learn More →](/content/materials/tgm-7-high-detail-resin/index.html)