Choosing an Industrial DLP Resin: High-Temp vs Tough vs Rigid vs ESD

Industrial DLP and LCD resins are not interchangeable — the right one depends on what the part has to survive. Here is how to choose between high-temperature, tough, rigid, ESD, high-resolution and dental grades, with a straight requirement-to-resin map.

Photopolymer 3D printing has moved well past prototyping. On DLP and LCD systems you can now print tooling that injection-molds PEEK, functional parts that take impact, and static-safe fixtures for electronics. The catch is that no single resin does all of it well. Choosing an industrial resin starts with the requirement, not the datasheet.

Start with the requirement, not the resin

Decide what the part must do first, then pick the material that hits it. The four questions that settle most decisions are: How hot? How hard a knock? How stiff? Any special property (static-safe, fine detail, dental, or a dissolvable mold)? The table below maps each requirement to a grade in the ALTANA Cubic Ink line.

Heat resistance

Heat is where cheap resins fail first. If parts see molten-material contact, steam or sustained high temperature, High Temperature 1901 VP (HDT-B 272 °C) is the pick, and it stays tough enough to drill and machine. For long-term use around 120 °C with high stiffness, Rigid 2000 VP is the all-rounder.

Toughness and impact

Many rigid resins are strong but brittle. If a part gets handled, dropped or flexed, prioritise impact resistance: Tough 2100 VP for fast functional parts, or High Performance 4-4800 VP for durable, scratch-resistant, good-looking end-use parts.

Stiffness and detail

For dimensional stability under load, Rigid 2000 VP leads on modulus and HDT; Rigid 1600 VP is the affordable everyday choice; and when the geometry is fine and intricate, Rigid 300 VP High Resolution resolves the smallest features.

Special properties: ESD, dental, tooling

Some jobs need a specific property, not just good mechanics. For electronics handling, High Performance 4-2800 VP-ESD keeps parts in the static-dissipative range. For dental labs, Dental 3000 VP prints accurate, thermoform-ready models. And to make a part rather than buy a mould, Mold 400 VP prints a water-breakable injection or casting tool.

Switching from another brand? Several of these grades sit in the same application class as industrial resins you may already run, so the decision is a short technical comparison — heat, toughness, stiffness and price side by side — not a redesign.

Do not forget processing

The resin is half the result; the process is the other half. Match wash and post-cure to the grade — high-temperature materials, for example, reach full heat resistance only after a thermal post-cure — and confirm your printer’s wavelength (385 or 405 nm) and intensity. Every Cubic Ink grade ships with a processing guide, and validated settings exist for common Formlabs, Asiga, Prusa, Phrozen and Nexa systems.

Still not sure?

Tell us the part and the load case — temperature, impact, stiffness, ESD, detail, dental or tooling — and a materials engineer will point you to the right grade and help you dial in the print and post-cure. Sub-24h reply, NDA standard. A good place to start comparing specs and pricing is Rigid 2000 VP or the tooling-focused Mold 400 VP.