3D-ADD SHB1 Self-Heal Booster, Photo/Thermal Assist Booster for 3D Printing Resins

3D-ADD SHB1 is a universal self-heal booster supplied in a 100% reactive, low-odor medium for SLA, DLP and LCD resins within the 385–405 nm range.

This additive is designed to restore cure speed across reuse cycles, accelerate interlayer re-bonding, promote fine-crack closure, and slightly lower the activation temperature of the selected Self-Heal grade. It is designed to work with clear and pigmented 3D resin systems without adding non-reactive solvents, metals, or amines.

Designed for use as a self-heal booster in vat photopolymerization systems (SLA, DLP and LCD) for resin reuse stabilization, localized repair, interlayer re-bonding and self-healing workflow refinement in controlled professional and R&D environments.

• Restoring and stabilizing cure rate after resin recovery and reuse
• Accelerating local or bulk self-repair within the selected Self-Heal window
• Localized light-assisted sealing of micro-cracks and thin interfaces
• Improving interface wetting and cohesion for welds
• Fine-tuning activation when parts cannot tolerate higher temperatures

• 3D-ADD SHB1 – Photo (Light-Assist Booster)
• 3D-ADD SHB1 – Thermal (Heat-Assist Booster)

• Density: approx. 0.99–1.10 g/cm³ (ISO 1675)
• Color (APHA): typically <60 in clear grades (ISO 6271)
• Viscosity: optimized within the processing range required for the intended printing process and application; vat-friendly at 25°C
• Physical state: clear to very pale yellow liquid
• Odor: very low, neutral

• Restores and stabilizes cure rate after resin recovery and reuse
• Speeds up local or bulk self-repair within the same Self-Heal window
• Enables room-temperature, light-assisted micro-repairs on delicate parts in the Photo variant
• Improves interface wetting and cohesion for crisper welds
• Preserves optical clarity at recommended use levels
• 100% reactive medium
• No non-reactive solvents
• No metals
• No amines

• 3D-ADD SHB1 – Photo (Light-Assist Booster): light-responsive booster that accelerates self-repair when a brief local 385–405 nm exposure can be applied
• Designed for delicate parts and thin interfaces
• Helps close micro-cracks at room temperature or with mild warming, then locks the joint with a quick LED flash
• Best for SH-RT and SH-60 workflows, thin optics, fine features and localized touch-ups
• Speeds interlayer re-bonding
• Enhances interface wetting and cohesion
• Helps stabilize cure rate in reused resin
• 3D-ADD SHB1 – Thermal (Heat-Assist Booster): dye-free booster that accelerates heat-assisted self-repair without adding any light-active color
• Ideal for pigmented or opaque systems or where purely thermal activation is preferred
• Best for SH-60, SH-80, SH-100 and SH-120 workflows, pigmented or opaque matrices and bulk joints
• Shortens thermal dwell for crack closure
• Improves weld strength
• Helps stabilize cure rate across reuse cycles

• Product: 3D-ADD SHB1 Self-Heal Booster
• Suggested pairing: 3D-ADD SH (SH-RT / SH-60 / SH-80 / SH-100 / SH-120) and circular heat-reclaimable mold resins (IM-*-HD)

• Photo version dosage in fresh resin: 0.10–0.30 wt% starting at 0.10–0.15 wt%
• Photo version dosage in recovered resin: 0.40–0.60 wt%
• Thermal version dosage in fresh resin: 0.10–0.30 wt%
• Thermal version dosage in recovered resin: 0.40–0.60 wt%
• Mix under low light and degas before use
• For Photo version, align surfaces, apply gentle pressure, use a short 385–405 nm flash to lock, then post-cure per host resin
• For Thermal version, align surfaces, apply the selected grade activation temperature with light pressure, then post-cure per host resin
• Impact on printing: minimal to slight exposure increase
• Re-optimize base and per-layer exposure on internal coupons
• Compatible with SLA, DLP and LCD systems
• Compatible with clear and pigmented hosts
• Thermal version is an excellent fit where color neutrality is critical

• Store tightly closed at 15–25°C
• Store dry and protected from light
• Shelf life: 12 months sealed in original container

• Low odor
• Use standard PPE including gloves, goggles and lab coat
• Adequate ventilation is required
• Avoid prolonged exposure to strong light during mixing
• Consult the SDS before use

Performance depends on host resin Tg, degree of cure, section thickness and applied pressure. Dosage and activation must be validated on internal coupons before production.

For industrial and R&D use. Not evaluated for implantable, pharmaceutical, or food-contact applications unless stated in writing.

3D-ADD SHB1 is supplied as a reactive self-heal booster for integration into SLA, DLP and LCD host resins, including reused or recovered systems. Applications that require a dedicated repairable, reuse-stabilized or self-healing formulation, or specific cure-rate, activation, optical or processing targets beyond what the booster provides on its own, can be addressed through a custom-designed material.

For these cases, 3Dresyns develops customized resin and additive systems according to customer specifications through the Customization Services program: Customization Services.

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

• Functional Additives
• Functional modifiers

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)