3Dresyn PC-Like vs Engineering Resins

Mechanical Resistance Comparison & Executive Summary

3Dresyn PC-like is a balanced engineering photopolymer designed to approximate polycarbonate-like mechanical behaviour in additive manufacturing. It is positioned for applications requiring a combination of moderate stiffness, useful toughness, controlled deformation and engineering-grade functional stability.

With flexural strength below 55 MPa, elongation below 40%, Young’s modulus of 1.0–1.4 GPa and Shore D 70, PC-like occupies a middle space between more rigid engineering resins and more ductile PP-like or Nylon-like families.

Choose 3Dresyn PC-like when you need a balanced structural response with more give than rigid engineering grades, but more shape stability than highly ductile resins.

Data Table — Typical Properties (post-cure; internal data and competitor TDS)

Resin	Flexural strength	Elongation	Young’s modulus	Noted traits
3Dresyn PC-like	<55 MPa	<40%	1.0–1.4 GPa	Balanced engineering response; Shore D 70; Tg >45 °C; useful compromise between rigidity and ductility.
Formlabs Tough 2000	~65 MPa	~48–74%	~1.1–1.6 GPa class	Closed ecosystem; tougher and more ductile; less PC-like balance.
Liqcreate Tough-X	Impact-focused	100–150%	Lower stiffness	Very ductile; open systems; softer than a classic PC-like engineering profile.
General engineering rigid/tough blends	Varies	Varies	Varies	Broader category; performance depends heavily on cure, ecosystem and post-processing.

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Comparability note: PC-like behaviour is often approximated through balanced tough engineering resins rather than direct polycarbonate equivalence. Fair comparison requires normalization of stiffness, elongation, geometry and post-curing conditions.

Where 3Dresyn PC-like Wins

1) Balanced structural behaviour

PC-like is positioned for applications needing more shape retention than highly ductile materials, while still allowing more deformation tolerance than rigid engineering grades.

2) Useful stiffness–toughness compromise

Its mechanical window makes it relevant for durable housings, structural covers and functional parts where moderate toughness is needed without dropping too far in rigidity.

3) Practical engineering implementation

Open-system 385–405 nm compatibility enables broad use without closed ecosystem dependence.

Application Guidance

Choose 3Dresyn PC-like for: durable housings, structural covers, balanced technical parts and engineering geometries requiring a stiffness–toughness compromise.
Choose a stiffer resin if rigidity dominates the application.
Choose a more ductile resin if local bending or high elongation is the primary need.

Processing Notes (Quick Start)

Compatible with open SLA, DLP and LCD systems in the 385–405 nm range.
Use validated exposure and post-cure to maintain the intended mechanical balance.

Normalization & Caveats

PC-like positioning is based on functional engineering behaviour analogy, not direct equivalence to molded polycarbonate.
Mechanical balance depends strongly on curing and post-processing conditions.

References

3Dresyn PC-like internal product data
Formlabs Tough 2000 TDS
Liqcreate Tough-X TDS
Relevant balanced engineering resin documentation