3Dresyn MB1 Magnetic Black for direct 3D printing of Black Magnetite Jewelry

Product description

3Dresyn® MB1 Magnetic Black is a natural magnetite (Fe₃O₄)-filled photopolymer designed for direct 3D printing of black magnetite-like jewelry, providing a dense, opaque mineral appearance with magnetic responsiveness to external magnets.

Application framework

Designed for use in SLA, DLP and LCD vat photopolymerization systems within controlled professional environments. Suitable for direct manufacturing of decorative and wearable components requiring magnetite aesthetics, high detail and interaction with external magnetic elements.

Typical applications

• Rings, pendants, earrings, bracelets, charms and beads
• Magnetically interactive jewelry using external magnets
• Modular pieces with magnetic closures or stackable systems
• Fashion hardware and decorative components

Measured mechanical properties

• Color/appearance: natural magnetite black, opaque
• Hardness: Shore D85–90 (ISO 868)
• Tensile strength: >50 MPa (ISO 527)
• Flexural strength: >70 MPa (ISO 178)
• Young’s modulus: 2500–3500 MPa (ISO 527)
• Elongation: <2% (ISO 527)
• Shrinkage: very low
• Resolution: very high
• Magnetic response: attracted by external magnets (not a permanent magnet)

Functional performance characteristics

• Magnetite-filled formulation with natural mineral content
• Opaque black magnetite appearance with stone-like character
• Attracted by magnets enabling interactive designs
• Ultra hard and tough (UHT) balance for wearable durability
• High tensile and flexural strength
• Good scratch and wear resistance
• Durable performance under normal use conditions
• Very low shrinkage for dimensional accuracy
• Very high resolution
• Organo-tin and nickel free formulation

Processing and handling performance

• Compatible with SLA, DLP and LCD systems (365–405 nm)
• Typical layer thickness: 25–100 μm (recommended 50 μm for fine jewelry detail)
• Requires increased exposure compared to clear resins due to dark mineral loading
• Mix thoroughly before use to ensure homogeneous magnetite distribution
• Supports: fine contact points recommended on visible surfaces
• Cleaning: short, efficient wash; avoid prolonged solvent exposure
• Finishing: suitable for wet sanding and polishing to mirror or matte textures
• Formulated to support extended resin tank durability

Testing & processing disclaimer

Material performance depends on printer type, exposure conditions, geometry, post-processing and finishing workflow. Mechanical behavior, magnetic response and surface quality must be validated by the user for each specific application.

Why choose 3Dresyn® MB1 Magnetic Black

• Natural magnetite-filled formulation with authentic black mineral appearance
• Magnetic responsiveness enabling interactive jewelry designs
• Direct 3D printing of finished functional and decorative parts
• High mechanical strength suitable for wearable applications
• Excellent surface detail and finishing versatility
• Durable with good scratch and wear resistance
• Very low shrinkage and high dimensional stability
• Compatible with most SLA, DLP and LCD systems
• Organo-tin and nickel free formulation

Regulatory & legal notice

This material is supplied as a professional manufacturing material and is not marketed as a finished product. It is not certified as a medical device or implant. When using external magnets, appropriate precautions must be taken. Final performance, safety and application suitability remain the responsibility of the user.

Document reference: TDS-MB1-MAGNETIC-BLACK-EN | Version: 1.0 | Last updated: March 2026