3D-POWDER CF2 WD Bio, Water Debindable Bio Eco Powder Binder for Cold Fusion CF SLS printing of Metal, Ceramic & exotic powders

Product description

3D-POWDER CF2 WD Bio is a universal water debindable safe biocompatible bio based powder binder designed for easy physical mixing with any chosen ceramic, metal, polymer, or exotic powder for plastic / polymer powder Selective Laser Sintering SLS, also known as Cold Metal Fusion CMF, Cold Ceramic Fusion CCF and Cold Polymer Fusion CPF.

This material is a universal water soluble debindable eco safe biocompatible bio based powder binder with a clean thermal burnout profile for selective laser sintering of ceramics, metals, polymers and exotic powders, enabling eco friendly SLS printing, debinding and sintering workflows.

Application framework

Designed for selective laser sintering workflows using ceramic, metal, polymer and exotic powders, followed by water debinding in water at 60-100ºC and subsequent thermal debinding and sintering.

Typical applications

• Cold Metal Fusion CMF
• Cold Ceramic Fusion CCF
• Cold Polymer Fusion CPF
• SLS printing of ceramics, metals, polymers and exotic powders

Measured physical properties

• Melting range: 160-170ºC (ISO 11357)
• Average mean particle diameter: approximately 100 microns
• Low moisture content for stable storage and recoating
• Bulk density: approximately 0.5 g/ml
• Near-spherical, free-flowing powder morphology with good powder bed flowability and recoating
• Freely soluble in water
• Resolution: up to 50 microns of final products depending on the particle size of the chosen ceramic, metal, polymer, or exotic powder

Functional performance characteristics

• Universal water soluble debindable eco safe biocompatible bio based powder binder with a clean, low residue thermal burnout for Selective Laser Sintering SLS printing of ceramic, metal, polymer, and exotic powders
• Safe biocompatible bio based powder for eco friendly SLS printing, debinding and sintering of ceramics, metals, polymers, and exotic powders
• High and sharp crystalline melting point well above the bed temperature, providing a wide, stable processing window and a dimensionally stable powder bed during printing
• Forms the water-soluble body of the green part; the structural cohesion and toughness of the green part are provided by the laser-sintered fusible co-binder (typically 3D-POWDER SLS PLA20-80 for this water route)
• Near-spherical, free-flowing morphology for excellent powder flow, levelling and recoating in the powder bed
• Fast water solubility for cold water debinding at 60-100ºC, faster in boiling water
• Clean thermal burnout with minimal carbonaceous residue for high purity thermal debinding
• Non hygroscopic, providing excellent powder bed stability, flowability and long shelf life
• Excellent adhesion, uniformity and stability without gravitational separation after mixing with micron and submicron ceramics, metals, polymers, and exotic powders
• Ceramic, metal, polymer, and exotic powder additions can be up to 60% volume concentrations
• Promotes controlled and reproducible process shrinkage which depends on final added powder ratio
• Minimum expansion coefficient to prevent micro-fractures
• Paraben free

Processing and handling performance

• Fine, narrow particle size distribution with an average particle size of approximately 100 microns, optimized for powder bed flowability and recoating (typical value, not to be considered a specification)
• High water solubility with very low hygroscopicity for ultra fast debinding speed and stable storage
• Keep container closed
• Once formulated and mixed with other powders, keep powder blend dry in a closed container before printing
• Easy physical dry powder mixing and wetting with ceramics, metals, polymers and exotic powders with low cost dry powder mixing equipment
• Printable by most plastic / polymer powder SLS printers
• Soluble in water for cold water debinding at 60-100ºC, faster in boiling water, creating the pore network for clean thermal debinding and sintering without imperfections nor cracking
• Recommended mixing at room temperature in a powder mixer or similar to ensure full wetting and mixing
• Recommended starting composition (approximate starting ranges, not a specification; the optimum depends on the chosen functional powder, part geometry and printer and must be validated for each case)
• Recommended starting composition: approximately 10-20% by weight of 3D-POWDER CF2 WD Bio (water soluble binder)
• Recommended starting composition: approximately 5-15% by weight of fusible co-binder, typically 3D-POWDER SLS PLA20-80 for this water route, which melts and coalesces under the laser to give the green part its cohesion and toughness
• Recommended starting composition: the balance, typically 65-85% by weight, of your chosen ceramic, metal, polymer, or exotic powder or fiber
• Optional: add 0-10% by weight of 3D-POWDER SLS PMMA 20-50 as a sacrificial pore former when controlled porosity or faster debinding of thicker parts is required, reducing the functional powder fraction accordingly; this crosslinked spherical PMMA does not melt but holds its shape and burns out cleanly, leaving smooth spherical pores; omit it when maximum sintered density is the goal
• Recommended plastic or polymer powder SLS printers: SLS printer compatibility, any open mode plastic / polymer powder SLS printer can be used
• Recommended printing process: use the standard printing parameters of the fusible co-binder. With 3D-POWDER SLS PLA20-80, use standard PLA SLS bed and energy settings; the crystalline binder melts well above this, so it stays solid and dimensionally stable, and the optional pore former does not melt
• Starting-point bed temperature: approximately 90-105ºC (the PLA co-binder range), as an orientative starting range, not a specification; the optimum depends on the functional powder, geometry and printer and must be validated
• If over-melting occurs reduce energy dosage, laser power and/or scan speed, and/or slightly decrease bed temperature
• If poor recoating or caking of the powder bed occurs, slightly reduce bed temperature and verify the powder blend is dry
• Use water or air jetting to clean the prints
• Cold debinding at 60-100ºC, faster in boiling water, in water for x hours, depending on print size
• Thermal debinding: insert flask in the preheated oven at 65ºC
• Ramp 1-2ºC/minute up to 250ºC
• Hold at 250ºC for 60 minutes
• Ramp 1-2ºC/minute up to 450ºC
• Hold at 450ºC for 30 minutes
• Ramp 2-5ºC/minute up to sintering temperature
• Hold at sintering temperature for 180 minutes
• Ramp -2ºC/minute down to 640ºC, then furnace-cool to room temperature

Chemical and safety characteristics

• Safe biocompatible bio based powder binder
• Water soluble binder
• Non hygroscopic
• Paraben free

Testing & processing disclaimer

The reported properties may vary depending on part design and manufacturing practices. The percentage ratios can be increased or decreased depending on the specifications of the printing settings and the chosen ceramic, metal, or exotic powder. After ordering, 3Dresyns can supply upon request the instructions for calculating the optimum ratio by weight. Final printing, debinding, shrinkage and sintering behavior depend on the chosen powder system, part geometry and full processing workflow, and must be validated by the user.

Disclaimer

This material is supplied as a professional manufacturing material and is not marketed as a finished medical device. Final part performance and suitability must be validated by the user according to the intended application.

Document reference: TDS-3D-POWDER-CF2-WD-BIO-EN | Version: 3.0 | Last updated: May 2026