COEX 3D Black CoexFlex™ 40D TPE Filament

Experience high-performance flexible 3D printing with COEX 3D Black CoexFlex™ 40D TPE Filament. Formulated from advanced Thermoplastic Copolyester (TPC), this rubber-like material delivers superior strength, heat tolerance, and chemical resistance compared to standard TPU. Designed for faster print speeds and exceptional layer bonding, CoexFlex™ 40D is the ideal solution for producing durable gaskets, flexible seals, protective grips, and vibration dampeners that must withstand repeated flexing and harsh environmental stress.

Key Features

• Superior TPC Formulation: Outperforms standard TPU with enhanced heat resistance, chemical tolerance, and abrasion resistance.
• Soft 40D Shore Hardness: Offers high flexibility and rubber-like elasticity combined with structural durability.
• Faster Print Speeds: Engineered to print faster and more reliably than traditional flexible filaments without buckling in the extruder.
• Exceptional Layer Adhesion: Forms tight inter-layer bonds to prevent part separation under dynamic mechanical stress.
• Versatile Functional Uses: Ideal for custom seals, gaskets, protective boots, handles, and shock-absorbing mounts.

Technical Specifications

• Hardness Rating: Shore 40D
• Recommended Hotend Temperature: 205°C – 250°C (401°F – 482°F)
• Recommended Bed Temperature: 25°C – 85°C (77°F – 185°F)
• Base Material: Thermoplastic Copolyester Elastomer (TPC / TPE)
• Recommended Build Surfaces: PEI sheet, Painter's Tape, or Glue Stick (Magigoo Original / Magigoo Flex recommended)
• Part Cooling: Part cooling fan recommended for fine geometric detail

Extruder & Handling Recommendations

• Bed Adhesion: Apply Magigoo or glue stick on PEI surfaces to ensure clean part release without tearing the build sheet.
• Storage: Store flexible elastomeric spools in a sealed bag with desiccant to prevent ambient moisture absorption and stringing during printing.