
Low-friction, high hardness protection uniquely formulated for FDM extrusion gears.
Bastion™ is a specialist coating for gears and hobbs. Purpose built for sliding wear, it delivers smoother extrusion, lower maintenance, longer life, and exceptional performance with abrasive materials.

Extreme Longevity
Self-Lubricating
Smoother Extrusion
Lower Maintenance

Why use a Bastion coating?
- Specifically formulated for gear wear and sliding contact
- Long-lasting
- Designed for use with abrasive filaments
- Combines low friction and high hardness
- Maintains filament grip and extrusion accuracy for longer
- Smoother extrusion improves print quality and reduces clogs and jams
- Self-lubricating properties reduce maintenance time
Proven durability. Tested performance.
Bastion coatings are validated under extreme conditions to deliver measurable gains in wear life and load performance.
Tooth contact cycles before wear

+15%
Increase in load carrying capacity
Improved performance under load for greater extrusion confidence.
Bastion vs alternatives
- Higher friction
- More wear
- Frequent maintenance
- Lower abrasive performance
- Grip loss over time
- Shorter service life
- Improved wear resistance
- Reduced maintenance
- Coating not optimised for gears
- Moderate service life
- Limited improvement in extrusion quality
- Lowest friction
- High wear resistance
- Reduced maintenance
- Optimised for gears and hobbs
- Up to 70x longer performance
- Fibre and metal filament ready
Available now
Bastion drivetrain upgrades are already available for selected Bambu Lab 3D printers.
X1C, P1P, P1S, X1E Upgrade
For OEMs
Bring Bastion to your platform
Bastion is a factory fit opportunity for printer manufacturers and hardware partners
- Differentiate your extrusion system
- Reduce maintenance and service issues
- Improve abrasive material capability
- Deliver smoother more reliable extrusion
- Provide long term durability and better user experience
- Leverage E3D's expertise in extrusion and coatings