HeyGears UltraPrint Tooling PAU20 3D Resin

HeyGears UltraPrint Tooling PAU20 resin is a high-performance industrial-grade engineering material, formulated to match the mechanical toughness and durability of thermoplastics such as ABS and polycarbonate (PC). Designed for heavy-duty workshop applications and production lines, PAU20 offers high impact resistance (35 J/m), a high flexural modulus (2300 MPa), and extraordinary mechanical fatigue resistance over long cycles. Low shrinkage and dimensional tolerances down to ±0.04 mm allow for the production of jig fixtures and structural components capable of transmitting high loads without cracking or deforming. The black, smooth, and wear-resistant surface finish ensures a long service life even in the presence of continuous friction and contact with moderate chemical agents.

Key Features

• High Impact Toughness: Offers shock absorption and an elongation at break of 23%, making printed components resistant to drops, sudden impacts, and intense mechanical vibrations.
• Exceptional Fatigue Resistance: Designed to withstand cyclic mechanical stresses and repeated loads over long production cycles without exhibiting failure or structural degradation.
• Dimensional Accuracy (±0.04 mm): Low volumetric shrinkage to ensure millimeter precision for drilling jigs, assembly fixtures, and interlocking assemblies.
• Durable and Wear-Resistant Surface: Smooth black finish with low surface friction, highly tolerant to workshop handling and daily wear..
• Thermal and Environmental Resistance: Heat Deflection Temperature (HDT) of 60 °C at 0.455 MPa, having passed UV aging (200 h) and warm humidity (Damp Heat) tests.

Target Applications

• Manufacturing Tooling: Custom assembly jigs, drilling guides, clamping fixtures, and quality control gauges.
• Robotics and End-Effectors: Grippers for robotic arms, mounting plates, and components for automated lines.
• Prototypes and Functional Components: Robust protective housings, enclosures, structural elements, and final production aids.

Printer Compatibility

• HeyGears Ecosystem (385 nm UV Source): Native compatibility with HeyGears printers equipped with a 385 nm optical engine:

1. UltraCraft Reflex
2. UltraCraft Reflex Turbo
3. UltraCraft Reflex 2
4. UltraCraft Reflex 2 Pro

(Pre-set print profiles are integrated in the Blueprint Studio software).

• Open MSLA / LCD Printers: Compatible with third-party desktop 3D printers operating at a 385 nm UV wavelength.

Technical Specifications and Mechanical Properties Table

Shore Hardness 84 Shore D

ASTM D2240

Notched Impact Strength 35 J/m

ASTM D256

Elongation at Break 23 %

ASTM D638

Fracture Work 5400 J/m²

ISO 20795.1

Tensile Modulus 2290 MPa

ASTM D638

Tensile Strength 69 MPa

ASTM D638

Flexural Modulus 2300 MPa

ASTM D790

Flexural Strength 109 MPa

ASTM D790

HDT (Heat Deflection @ 0.455 MPa) 60 °C (140 °F)

ASTM D648

Water Absorption 1.9 %

ASTM D570

Dynamic Viscosity 3400 mPa·s (TDS) / 3300–4000 mPa·s (SDS) at 25 °C

ASTM D4212

Density 1.0 - 1.5 g/cm³ at 25 °C

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Boiling Point / Flammability 178 °C / Flash point: 116 °C

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UV Light Aging 200 h (Passed)

ASTM G154

Damp Heat Test Passed

IEC 60068-2-78

Composition and Safety Information

• Main Chemical Composition: Urethane acrylate resin (45–75%), 4-(1-oxo-2-propenyl)morpholine (10–30%).
• Hazard Statements (SDS): Harmful if swallowed (H302), causes skin irritation (H315), may cause an allergic skin reaction (H317), causes serious eye irritation (H319), may cause respiratory irritation (H335), may cause damage to organs through prolonged or repeated exposure (H373).
• Precautionary Statements: Handle while wearing nitrile protective gloves, safety glasses, and laboratory clothing. Use in well-ventilated areas or under a fume hood. Keep container sealed in a cool, dry place away from direct UV light.