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.

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

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:  Packaging tape (PE or PP based) is an excellent low-cost option, 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.