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Technical Data Sheet
Amphora™ 3D Polymer SP1621 Natural

  • Apparel
  • Footwear
  • Non-kitchen appliances
  • Other-transportation
  • Point-of-purchase
  • Small appliances non-food contact
  • Sporting equipment
  • Tools
  • Tpe
  • Truck/bus/RV
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

PropertyaTest MethodbTypical Value, Unitsc
General Properties
Density of PowderdASTM 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 ModuluseD 63819.4 ksi (134 MPa)
Tensile StrengtheD 6382.0 ksi (14 MPa)
Elongation @ BreakeD 63828 %
Tensile ModulusfD 63820.7 ksi (143 MPa)
Tensile StrengthfD 6382.5 ksi (17 MPa)
Elongation @ BreakfD 638129 %

aUnless noted otherwise, all tests are run at 23°C (73°F) and 50% relative humidity.
bUnless noted otherwise, the test method is ASTM.
cUnits are in SI or US customary units.
dTap Density
eZ axis
fX 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