Technical Data Sheet

Alpha Grey Resin

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Material Code : FLAPGR01   |   Datasheet Version : V1   |   Revision Date : September 28, 2026   |   Category : General Purpose Resin   |   Safety Datasheet
Material Properties   |   Thermal Properties   |   General Properties   |  Green Properties   |   Biocompatibility   |   Workflow

Material Properties

Mechanical Properties

  Default Post-Cure Max Strength Post-Cure Method 1,2
Tensile Properties
Ultimate Tensile Strength 43 MPa [6200 psi] 50 MPa [7300 psi] ASTM D638, Type 1
Tensile Modulus 2150 MPa [310 ksi] 2430 MPa [350 ksi] ASTM D638, Type 1
Elongation at Break 34% 29% ASTM D638, Type 1
Flexural Properties
Flexural Strength 75 MPa [11000 psi] 81 MPa [12000 psi] ASTM D790
Flexural Modulus 2080 MPa [300 ksi] 2220 MPa [320 ksi] ASTM D790
Toughness Properties
Izod Impact Strength (Unnotched) 184 J/m [3.45 (ft·lb)/in] 176 J/m [3.30 (ft·lb)/in] ASTM D4812
Izod Impact Strength (Notched) 39 J/m [0.73 (ft·lb)/in] 38 J/m [0.71 (ft·lb)/in] ASTM D256

Thermal Properties

Thermal Properties Default Post-Cure Max Strength Post-Cure Method 1,2
Heat Deflection Temp. at 1.8 MPa 48.3 °C [119 °F] 50.6 °C [123 °F] ASTM D648
Heat Deflection Temp. at 0.45 MPa 55.4 °C [132 °F] 60.2 °C [140 °F] ASTM D648
Glass Transition Temp (Tg) 88 °C [190 °F] 98 °C [208 °F] DMA, Tension mode

General Propeties

  Default Post-Cure Method 1,2
Bulk Density 1.22 g/cm3 [0.0441 lb/in3] ASTM D792
Liquid Density 1.11 g/cm3 [0.0401 lb/in3] ASTM D792
Shore Hardness 74D ASTM D2240-15
Viscosity at 25 °C 600 cP ASTM D7867

Green Properties

  No Post-Cure Method 1
Ultimate Tensile Strength 38 MPa [5510 psi] ASTM D638, Type 1
Tensile Modulus 1860 MPa [270 ksi] ASTM D638, Type 1
Elongation at Break 35% ASTM D638, Type 1

Workflow

Printer Compatibillity

Platform Printer Compatibility Resin Tank
Form Studio 1 Form Studio 1 Supported Form Studio Resin Tank
Form 4 Form 4 Incompatible
Use Grey Resin V5		 N/A
Form 4B
Form 4L
Form 4BL
Form 3 Form 3/+ Incompatible
Use Grey Resin V4.1		 N/A
Form 3B/+
Form 3L
Form 3BL

Supported: Dispensing will be enabled and print settings are available in PreForm.

Compatible: Automatic dispensing from cartridges is enabled, but the user will be responsible for settings tuning. If printing on Form Studio 1, Resin Tank Pro must be used. Mechanical properties may not be equivalent to those published here.

Incompatible: Open Material Mode required, and automatic dispensing from cartridge is disabled. Mechanical properties may not be equivalent to those published here.

Post Processsing

Step Recommended Hardware Default Max Strength
Washing Form Wash V2
Form Wash L V2
Form Studio Wash+Cure		 5 minutes or until clean*
Drying -- 30 minutes at room temperature, or use compressed air
Post-Curing Form Studio Wash+Cure 5 minutes N/A
Form Cure V2
Form Cure L V2		 1 minute at room temperature 5 minutes at 60 °C

*Use >90% IPA or Resin Washing Solution

Handling and Storage

Shelf-life 2 years
Storage temperature 10 - 25 °C

Storage and handling notes

Review Safety Data Sheet to ensure safe handling, storage, and disposal.
Shake resin cartridges before printing to ensure the resin is thoroughly mixed.
To avoid contamination, do not pour resin back into cartridges.
For best performance and shelf life keep opened resin away from direct light.
Short-term freezing during shipping is generally not detrimental to shelf life. Thaw and shake the resin cartridge thoroughly before use.
High temperatures decrease shelf life. Transient high temperature conditions (e.g., during shipping) should have a minimal effect.

Footnotes

  1. Material properties may vary based on part geometry, print orientation, print settings, temperature, and disinfection or sterilization methods used.
  2. Data was obtained from parts printed on a Form Studio 1 printer with 100 µm Alpha Grey Resin V1 settings, washed in Form Studio Wash+Cure for 5 minutes in ≥99% Isopropyl Alcohol, and post-cured according to the corresponding column description.