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Technical Data Sheet

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Key Attributes
  • Ease of Processing
  • Flexibility
  • High Recyclability
  • High printing resolution
  • Superior compression and rebound properties
  • Toughness

Product Description

Laser-focused customization

Eastman Amphora™ SP1621 3D polymer is ideal for a variety of powder-based additive manufacturing techniques, including laser sintering (LS) processes and non-laser powder-based sintering processes, such as high-speed sintering. One of the highest resolution and production-scalable methods for additive manufacturing, LS systems use lasers to sinter fine powders to create three-dimensional parts. Compared to extrusion methods that use polymer filament, LS printers enable creation of intricate designs because the powder bed acts as a support during the printing process—buttressing the overhangs, undercuts, and thin-walled designs until the polymer sinters.

Other non-laser based technologies use infrared energy instead of lasers to sinter the powdered polymers. Heat-absorbing agents are jetted into the powder to precisely melt it in the desired areas. Amphora™ SP1621 provides significant advantages to both types of processes, including the ability to utilize a broad processing window, recycle the powder that has not been fused, and create highly detailed prints. Amphora™ SP1621 is a superior alternative to thermoplastic polyurethane powder and nylon-based elastomer powders—creating 3D products with enhanced toughness, abrasion resistance, tear and fatigue resistance, and flexibility. And, unlike some other materials, Amphora™ SP1621 requires limited post-processing, saving time and the costs associated with polishing, painting, infiltration, and dyeing.

Typical Properties

PropertyTest MethodTypical Value, Units
General Properties
Density of PowderaASTM B527-150.02 lbs/in3 (0.53 g/cm3)
Color White
Density, Solid Phase 
     @ 20°CD 7920.036 lbs/in3 (0.99 g/cm3)
Mechanical Properties
Compression set (22 hours, 70 deg C)ASTM D39560 %
Taber Abrasion, weight loss after 1000 cycles using CS-17 and 1 kg loadASTM D406067 mg
Shore A HardnessD 224094 A
Tensile ModulusbD 63819.4 ksi (134 MPa)
Tensile StrengthbD 6382.0 ksi (14 MPa)
Elongation @ BreakbD 63828 %
Tensile ModuluscD 63820.7 ksi (143 MPa)
Tensile StrengthcD 6382.5 ksi (17 MPa)
Elongation @ BreakcD 638129 %

aTap Density
bZ axis
cX axis

Properties reported here are typical of average lots. Eastman makes no representation that the material in any particular shipment will conform exactly to the values given.

Eastman and its marketing affiliates shall not be responsible for the use of this information, or of any product, method, or apparatus mentioned, and you must make your own determination of its suitability and completeness for your own use, for the protection of the environment, and for the health and safety of your employees and purchasers of your products. No warranty is made of the merchantability of fitness of any product, and nothing herein waives any of the Seller's conditions of sale.

2/14/2019 10:52:59 AM