3D printing in UFSH220 | Manufacturing Materials

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UFSH220

Material type: UV-curable resin / photopolymer (for SLA)

UFSH220 is a high-performance UV-curable resin for SLA 3D printing. It is designed for applications that demand exceptional thermal stability: after a simple post-treatment, its heat deflection temperature reaches 227 °C, and its upper limit temperature exceeds 250 °C. The material also provides excellent accuracy, reliable surface quality, and good mechanical properties, making it suitable for demanding environments such as wind tunnels, impellers, motors, and rapid molds.

Process compatibility

SLA

Material Color

Yellow (after heat treatment)

Material advantages

- Exceptional heat resistance: HDT > 220 °C (up to 227 °C at 0.455 MPa), with an upper temperature limit above 250 °C.
- Excellent stiffness: flexural modulus of 4321 MPa.
- Moderate toughness: balanced mechanical properties with impact strength of 16 J/m.
- Superior accuracy and surface quality: ideal where high precision and a reliable surface finish are required.
- Fast and easy processing: compatible with large-format SLA printers for efficient production.

Material shortcomings

- Brittleness: like most rigid UV-curable resins, it is more brittle than thermoplastics such as PA12 or PA12+GF, so it is less suitable for parts needing high impact resistance or flexibility.
- Post-treatment required: the 227 °C heat deflection temperature is reached only after a simple post-treatment such as thermal curing.
- Limited toughness: toughness is moderate, so the material is not intended for high-impact or high-stress applications.
- UV sensitivity: being a photopolymer, it may degrade under prolonged UV exposure without suitable coating or protection.
- Viscosity: its relatively high viscosity (276 cps @ 30 °C) may require careful handling during printing.

Recommended description

UFSH220 is a high-temperature UV-curable resin for SLA 3D printing that offers exceptional heat resistance (HDT > 220 °C) and excellent mechanical properties. It pairs high stiffness (4321 MPa flexural modulus) with moderate toughness, along with superior accuracy and surface quality. It is especially recommended for applications requiring thermal stability and precision, such as wind tunnel components, impellers, motor parts, and rapid tooling, and is optimized for fast, easy processing on large-format SLA printers.

Properties

Name
Density	1.16 g/cm³ @ 25 °C
Critical Exposure (Ec)	13.91 mJ/cm²
Penetration Depth (Dp)	0.11 mm
Exposure for 0.254 mm thickness (E10)	127 mJ/cm²
Flexural Strength	116 MPa
Flexural Modulus	4321 MPa
Impact Strength	16 J/m
Hardness (Shore D)	90
HDT @ 0.455 MPa	227 °C
HDT @ 1.82 MPa	170 °C