Flexible 3D printing filament ROSA-PLAST Rosa3D Flex 85A 1.75 mm 0.5 kg — Black

ROSA-PLAST Rosa3D Flex 85A is a flexible 3D printing filament in 1.75 mm diameter supplied on a 0.5 kg spool. With a Shore hardness of 85A and a black color, the filament is formulated for FDM/FFF printers that accept 1.75 mm filament and is intended for parts that require elasticity, tear resistance and moderate hardness.

Advantages

Rosa3D Flex 85A combines flexibility with dimensional stability, enabling accurate prints of elastic components while maintaining good layer adhesion. The 85A shore hardness offers a balance between softness and structural support, suitable for functional prototypes and end-use parts. The filament is supplied on a compact 0.5 kg spool that fits most standard filament holders for desktop FDM/FFF machines.

Suitable for

• Seals and gaskets that require compression and recovery
• Wearable elements and soft enclosures
• Grips, handles and shock-absorbing parts
• Flexible prototypes and functional models for testing

Key specifications

• Diameter: 1.75 mm
• Spool weight: 0.5 kg
• Shore hardness: 85A
• Color: Black
• Filament type: Flexible thermoplastic for FDM/FFF printing

How to use

Load the 1.75 mm filament into an FDM/FFF printer configured for flexible filaments. Use a direct drive extruder or a guided Bowden setup optimized for soft materials to reduce buckling. Adjust print temperature, speed and retraction according to printer and filament manufacturer recommendations, starting with moderate temperatures and slower print speeds to improve print quality and layer bonding. Ensure good bed adhesion using an appropriate build surface or adhesive for flexible materials.

Usage recommendations

For best results, print at reduced speeds and minimize long retractions; use a direct drive extruder where possible and consider increasing first-layer thickness and flow to improve adhesion. Store the filament in a dry environment or sealed packaging with desiccant to maintain consistent print performance.