In a resin 3d printer, UV resin and standard resin are the two most commonly used types of 3d printer resin. However, if you’ve experienced failed prints or inconsistent curing, you’ll understand how important it is to choose the right 3d printer resin for your project.
This article will help you understand the main differences between these two resins, their ideal uses, and how to select the best 3d printer resin to meet your needs.
2. What Is 3D Printer Resin?
3D printer resin is a liquid photopolymer that hardens when exposed to light, typically in the ultraviolet (UV) spectrum. It’s used in SLA (stereolithography), DLP (digital light processing), and LCD-based resin 3D printers.
Resin printing is known for producing high-resolution parts with fine detail, which is why it’s often preferred over FDM for precision work.
Resins can be designed to meet specific needs—flexibility, strength, biocompatibility, transparency, or heat resistance. That’s why choosing the right type for your application is crucial.
3. What Is UV Resin?
UV resin specifically refers to resin that cures (or solidifies) when exposed to UV light. It’s commonly used in desktop 3D printers and can include both general-purpose and specialty formulations.
These resins are designed to cure quickly and evenly under UV wavelengths, typically between 385 nm and 405 nm.
Key characteristics of UV resin:
- Fast curing time under UV exposure
- Compatible with most desktop LCD/DLP printers
- Available in multiple types: standard, tough, flexible, castable, dental, etc.
- Requires post-curing for optimal strength
UV resin is often used in high-resolution models, such as dental molds, custom jewelry, or intricate prototypes.
4. What Is Standard Resin?
The term “standard resin” typically refers to basic photopolymer resins used for everyday printing, often considered the most affordable and general-purpose option for resin 3D printing. These are also UV-curable, but they lack the enhanced properties found in specialty resins.
Typical features of standard resin:
- Moderate strength and brittleness
- Good detail resolution
- Lower cost, suitable for simple prototypes and visual models
- Often requires careful handling due to fragility
Some brands label their entry-level products as “standard resin,” distinguishing them from engineered resins designed for toughness, elasticity, or high temperature resistance.
5. Main Differences Between UV Resin and Standard Resin
| Feature | UV Resin | Standard Resin |
| Curing | Requires UV light (385-405nm) | Also requires UV, but slower in some cases |
| Application Range | Includes tough, flexible, dental, etc. | Mostly for basic models and prototypes |
| Durability | Varies by formulation | Generally more brittle |
| Cost | Mid to high, depending on type | Lower, more budget-friendly |
| Finish Quality | High-detail finish | Good, but limited in strength |
| Post-processing | Needs cleaning and UV post-cure | Same, but less durable after curing |
6. Application scenarios of UV resin and standard resin
Standard resin is best suited for low-cost, low-stress applications like visual prototypes or display models where durability isn’t a priority.
In contrast, specialized UV resin is the better choice when prints require enhanced strength, flexibility, heat resistance, or a smoother finish, making it ideal for functional parts, dental models, and other precision applications.
7. How To Choose The Right 3D Printer Resin
Choosing resin goes beyond just UV vs standard. Here are a few practical suggestions:
1. Start with your application
Are you printing functional parts, aesthetic models, or something that needs biocompatibility? Define your goal first.
2. Check your printer compatibility
Not all resins work with every printer. Match the resin’s curing wavelength with your printer’s light source.
3. Review mechanical properties
Look at elongation, tensile strength, and shore hardness if your part needs to handle stress.
4. Plan your workflow
Some resins require more cleaning or curing time. Choose a material that fits your production timeline.
5. Consider post-processing
If you’re aiming for a smooth finish or specific coloration, choose resins that respond well to sanding and painting.
Conclusion
Understanding the difference between UV resin and standard resin will save you a lot of frustration down the road.
Each has its place, and there’s no one-size-fits-all answer. Know your printer, your print goals, and choose your 3d printer resin accordingly. It’s better to match the resin to the job rather than trying to force a fit.
If you’re still unsure, test both types on small prints and see which one fits your workflow better.
