Quality, Traceability and Controlled Manufacturing at 3Dresyns
Quality, traceability and manufacturing control framework applied by 3Dresyns® to photopolymer materials for additive manufacturing.
This page describes how quality, traceability and manufacturing control are defined for 3Dresyns® photopolymer materials.
Materials are supplied as raw formulation systems. Quality is therefore defined in terms of formulation control, process consistency, traceability and reproducibility within qualified tolerances.
In photopolymer additive manufacturing, quality is not a static certification. It is a system-level property emerging from formulation, processing, storage and validated Instructions for Use.
Quality definition in photopolymers
Quality in resin-based additive manufacturing results from the controlled interaction between:
- formulation design and chemistry
- raw material selection
- manufacturing procedures
- storage and handling conditions
- validated Instructions for Use (IFU)
For this reason, quality must be understood as a system property rather than a single test result.
Quality Assurance (QA)
Quality Assurance ensures that each formulation system is designed and produced under controlled internal specifications.
- controlled sourcing of raw materials
- formulation design under defined recipes
- controlled manufacturing procedures
- defined acceptance criteria and tolerances
- documentation and version control
QA ensures consistency and reproducibility across production lots within expected variability.
Quality Control (QC)
Quality Control verifies that each production lot conforms to defined specifications before release.
- verification of critical formulation parameters
- visual and physical checks
- process consistency verification
- release controls prior to shipment
QC does not replace application-specific validation by the user.
ISO certification context
Some manufacturing steps may be performed under ISO-certified environments when required.
However, ISO certification at material level does not certify the final printed part or the user’s process. Certification applies to the validated finished device and its manufacturing workflow.
Traceability and lot control
Each material is supplied with a lot number enabling:
- identification of manufacturing batch
- traceability of formulation versions
- correlation with internal QA/QC records
This supports reproducibility, change control and issue investigation.
Shelf life and expiration
Expiration dates define the validated time window for expected material performance under correct storage conditions.
Expired materials may show changes in viscosity, reactivity or final performance and require revalidation before use in critical applications.
Relationship to IFU
Final quality depends strongly on adherence to Instructions for Use.
IFUs define qualified workflows for printing, cleaning and post-curing. Deviations may affect:
- mechanical properties
- surface quality
- dimensional accuracy
- biocompatibility
Transparency and expectations
Material data describes typical behaviour under controlled reference conditions.
Final part performance must always be validated by the user under their specific process and application conditions.
Governing principle
3Dresyns ensures controlled formulation, manufacturing and traceability of raw materials.
Final product quality and regulatory compliance depend on the validated manufacturing process implemented by the user.