3D-POWDER CF1 SD Bio, Solvent Debindable Bio Eco Powder Binder for Cold Fusion CF SLS printing of Metal, Ceramic & exotic powders

3D-POWDER CF1 SD Bio is a universal solvent debindable 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 solvent soluble solvent debindable eco bio-based powder binder for selective laser sintering of ceramics, metals, polymers and exotic powders, enabling eco friendly SLS printing, debinding and sintering workflows.

Designed for selective laser sintering workflows using ceramic, metal, polymer and exotic powders, followed by cold solvent debinding in Debinding Solution DS1 Bio at 80-90ºC and subsequent thermal debinding and sintering. Used together with a fusible co-binder (typically 3D-POWDER SLS NYLON12 30-50 or NYLON11 15-85 for this solvent route) and, optionally, a sacrificial pore former (3D-POWDER SLS PMMA 20-50) when controlled porosity is required.

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

• Resolution: up to 50 microns of final products depending on the particle size of the chosen ceramic, metal, polymer, or exotic powder
• Low melt viscosity for increased flow, wetting and binding
• Maximum particle size: <50 microns (ISO 13320)
• Soluble in eco solvent (Debinding Solution DS1 Bio)

• Melting temperature: 70-80ºC (ISO 11357-3)

• Universal solvent soluble solvent debindable eco bio-based powder binder for Selective Laser Sintering SLS printing of ceramic, metal, polymer, and exotic powders
• Bio-based powder with 100% bio content for eco friendly SLS printing, debinding and sintering of ceramics, metals, polymers, and exotic powders
• Low melt viscosity for increased flow, wetting and binding of ceramics, metals, polymers and exotic powders
• Forms the solvent-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 Nylon 12 / 11 for this solvent route)
• Excellent solvent solubility for cold solvent debinding at 80-90ºC
• Thermal degradation <450ºC for optimum thermal debinding
• 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

• Ideal non water soluble binder soluble in Debinding Solution DS1 Bio at 80-90ºC for fast cold eco solvent debinding and sintering without imperfections nor cracking
• 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
• 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 CF1 SD Bio (solvent soluble binder)
• Recommended starting composition: approximately 5-15% by weight of fusible co-binder, typically 3D-POWDER SLS NYLON12 30-50 or NYLON11 15-85 for this solvent 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, typically Nylon 12, but reduce bed temperature to 60ºC
• 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 air jetting to clean the prints
• Cold debinding at 80-90ºC in Debinding Solution DS1 Bio 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
• 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

• 100% bio content
• Non water soluble binder
• Solvent soluble in Debinding Solution DS1 Bio

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.

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.

Use these related 3Dresyns pages to navigate adjacent material and process routes within the same technical workflow.

• Powder Binders for SLS Cold Metal, Ceramic, Polymer & Exotic Materials Fusion
• Direct printing of sintering ceramics, metals, and exotic materials

This technical datasheet should be used together with the relevant processing, calibration, safety and workflow documentation available in the 3Dresyns® Resources section.

Access the 3Dresyns® Technical Resources (IFU, calibration, CRT, post-processing and troubleshooting)