Quick Answer: Which Resin Should You Use?
Start here: Use the filters below to narrow down by resin type, brand, or use case. Compare tensile strength, heat resistance, viscosity, and price side by side.
Beginners: Start with Standard Resin or Water-Washable Resin — they’re affordable, easy to work with, and forgiving.
Need strength? Look at ABS-Like or Tough/Durable resins for functional parts.
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Understanding 3D Printing Resin Types
Resin 3D printing (SLA/DLP/MSLA) uses UV light to cure liquid photopolymer resin layer by layer, producing parts with incredible detail and smooth surface finishes that FDM printers can’t match. But choosing the right resin is critical — the wrong resin means failed prints, wasted money, or parts that don’t perform as needed.
Standard Resin
The workhorse of resin printing. Standard resin is affordable, prints reliably, and produces excellent detail. It’s perfect for miniatures, display models, and basic prototypes. Best for: Beginners, hobbyists, anyone printing decorative or display pieces.
ABS-Like Resin
A tougher formulation designed to mimic the mechanical properties of ABS filament. ABS-like resins offer better impact resistance and elongation than standard resin. Best for: Functional prototypes, snap-fit parts, figures that will be handled.
Tough / Durable Resin
Engineered for mechanical applications. Tough resins like Siraya Tech Blu offer significantly higher impact strength and elongation. Best for: Jigs, fixtures, brackets, mechanical prototypes.
Flexible Resin
Produces rubber-like, bendable parts with very high elongation (60–160%+) but lower tensile strength. Best for: Gaskets, grips, wearables, cushioning elements.
High-Temperature Resin
After proper post-curing, these resins can withstand 100–220°C. Best for: Molds, hot-air fixtures, prototypes exposed to heat.
Castable Resin
Burns out cleanly in investment casting. Used primarily in jewelry making and small metal casting. Best for: Jewelry masters, dental casting patterns.
Water-Washable Resin
Can be cleaned with water instead of IPA. More convenient and safer for home use. Best for: Beginners, home setups without IPA access.
Resin Safety Guide
⚠️ Essential Safety Precautions
- Always wear nitrile gloves when handling uncured resin or prints.
- Use in a well-ventilated area — resin fumes can cause headaches and sensitization.
- Wear safety glasses to protect against splashes.
- Never pour resin down the drain. Cure leftover resin in sunlight before disposal.
- Wash hands thoroughly after any contact.
- Store resin in a cool, dark place away from UV light.
Resin Wash and Cure Best Practices
Washing
- Remove supports before washing when possible.
- First wash: Submerge in IPA (91%+) for 2–3 minutes, agitating gently.
- Second wash: Fresh IPA for 1–2 minutes to remove remaining resin.
- Air dry for 10–15 minutes or use compressed air.
Curing
- UV curing station recommended for consistent results.
- Typical cure time: 3–10 minutes depending on resin type and part size.
- Rotate parts during curing for even exposure.
- Don’t over-cure — extended curing can make parts brittle.
Choosing the Right Resin
| Project Type | Recommended Resin | Why |
|---|---|---|
| Tabletop miniatures | Standard or ABS-Like | Fine detail, affordable |
| Functional brackets | Tough / Durable | Impact resistance, load-bearing |
| Jewelry patterns | Castable | Clean burnout, high detail |
| Rubber gaskets | Flexible | High elongation, rubber-like |
| First-time printer | Water-Washable | No IPA needed, easy cleanup |
| Heat molds | High-Temp | Withstands 100°C+ after curing |
Frequently Asked Questions
Is resin printing safe?
Resin printing is safe when proper precautions are followed: wear nitrile gloves, use adequate ventilation, wear eye protection, and never handle uncured resin with bare hands.
Can I mix different resin types?
Some resins can be mixed (e.g., Siraya Tech recommends mixing Tenacious with other resins), but always check manufacturer compatibility first.
How should I store resin?
Store in the original opaque bottle, tightly sealed, in a cool dark place (15–25°C). Typical shelf life is 12–24 months.
Water-washable vs IPA: which is better?
IPA cleaning is more thorough. Water-washable is more convenient and safer for home use. For beginners, water-washable is a great starting point.
How do I dispose of resin waste?
Cure all liquid resin waste with UV light or sunlight until fully solid, then dispose of as regular waste per local regulations. Never pour uncured resin down any drain.