OBC – Evolv3D™




Evolv3D™ OBC (Olefin Block Copolymer) from Dow is an engineering-grade material based on a novel polyethylene copolymer.  OBC is the state-of-the-art in polyethylene 3D printing and eliminates many of the problems associated with printing polypropylene-based materials.  OBC is semi-crystalline and has excellent chemical resistance coupled with ease of printing and real-world functional properties.  We manufacture this filament at our factory in Grand Rapids, MI using premium Dow Evolv3D™ OBC resin and custom colorants specifically formulated for 3D printing.

Low Density:  The reel contains 750g of filament, but based on the low density of OBC, this is the same amount of filament that would typically be on a 1kg reel of ABS.  This allows you to print light-weight and exceptionally durable parts for medical, drones, watercraft, automotive, or any application that would benefit from a light weight chemically resistant material.

Product Attributes Include:

  • Excellent Z-axis bonding
  • Very low density (0.9 g/cm3)
  • Outstanding chemical resistance
  • No water pick-up – no drying needed
  • Ease of printing – low warp / curling
  • Flexibility and fatigue resistance allows for printing living hinges
  • Low odor – essentially none

Chemical Resistance:


Filament Specifications:

  • Diameter:  1.75mm, 2.85mm, +/- 0.05mm
  • Reel weight:  +/- 5%

Recommended Print Settings:

  • Extruder temp:  170-210°C
  • Bed temp:  60-100°C
  • Bed prep:  3Dlac spray, Kapton Polyimide Tape, ABS/Acetone Slurry, Magigoo PP Bed Prep
  • Enclosed build chamber:  23-60°C.  Although not 100% necessary, an enclosed print chamber will help ensure more successful printing
  • Other:  Recommended to print with brim or raft until you become comfortable printing with OBC.  We also recommend the use of a cooling fan (20-50%).  Print speed is generally 30-50mm/s.

Evolv3D™ is a trademark of The Dow Chemical Company

Additional information

Weight .75 kg
Dimensions 33 × 33 × 9 cm
Filament Diameter

1.75mm, 2.85mm


Black, White, Dark Grey, Blue, Red