A Guide to Miniature Materials: Plastics, Resins, and 3D Printing
Miniature gaming is more than just playing—it’s about collecting, painting, and appreciating the craftsmanship behind each model. If you’ve ever wondered why some miniatures feel different, paint differently, or cost more, the answer lies in the materials used to make them. Let’s break down the most common methods and materials so you can choose the right miniatures for your collection.
Common Materials and Methods
Injection-molded plastic: Often referred to as “blown plastic,” this is the most common method for mass-produced miniatures. It uses polystyrene or ABS plastic, offering durability, affordability, and consistent quality. These models are lightweight and easy to assemble, though fine details may be less sharp compared to resin.
Resin-cast models: Resin is prized for capturing extreme detail. It’s ideal for high-end miniatures and limited runs. However, resin can be brittle, requiring careful handling. It’s also more expensive to produce, which is why resin miniatures often cost more.
3D printed resin: Using SLA or MSLA printers, liquid resin is cured layer by layer with UV light. This method produces ultra-fine details and smooth surfaces, perfect for display-quality miniatures. Different resins exist—standard, ABS-like, flexible, or high-detail—each with unique properties.
3D printed filament models: FDM printers use filaments like PLA, ABS, or PETG. These are more affordable and accessible but often show visible layer lines. PLA is eco-friendly and easy to print, ABS is tougher but harder to work with, and PETG balances strength and flexibility.
Metal miniatures: Though less common today, pewter and other alloys are still used. Metal miniatures are highly durable and weighty, but harder to convert and more challenging to paint.
Resin printing has revolutionized the miniature hobby. Unlike filament-based printing, resin printers (SLA, DLP, or MSLA) use liquid photopolymer resin cured by UV light. This process allows for exceptional detail, smooth surfaces, and complex geometries that traditional plastics can’t achieve. Here at Reaction Games, we print using water-washable resin.
Types of Resin for Miniatures
Standard resin: Affordable, sharp detail, but can be brittle.
ABS-like resin: Stronger and less brittle, mimicking the toughness of injection-molded plastic.
Flexible resin: Adds bendability, reducing breakage for thin parts.
High-detail resin: Designed for ultra-fine features, perfect for display models.
Water-washable resin: A newer innovation that simplifies cleanup and reduces reliance on harsh chemicals.
Water-Washable Resin: Why It Matters
Water-washable resin is becoming a favorite among miniature makers because it combines ease of use with high-quality results.
Easy cleanup: Instead of using isopropyl alcohol (IPA) or other solvents, prints can be rinsed with water. This makes the process safer and more accessible for hobbyists.
Eco-conscious appeal: Less reliance on chemicals means fewer fumes and reduced environmental impact.
Detail retention: Maintains the same sharpness and smooth finish as traditional resins.
Cautions: While easier to clean, water-washable resin is still not “safe water.” Rinse water must be cured under UV light before disposal to avoid environmental harm.
Why Resin Printing Stands Out for Miniatures
Unmatched detail: Perfect for intricate armor, facial features, and fine textures.
Smooth surfaces: Minimal layer lines compared to filament printing.
Customization: Ideal for unique sculpts, limited runs, or prototypes.
Professional finish: Resin miniatures often rival or surpass injection-molded models in quality.
Disclaimer
This guide is for informational purposes only. Material properties may vary depending on manufacturer, production method, and user handling. Always check product specifications before purchase, and handle resin and filament safely, following manufacturer guidelines.
The content provided on Reaction Games is for informational and educational purposes only. While we strive to ensure accuracy, all details—including product specifications, prices, availability, and third‑party information—are subject to change and may vary by manufacturer or retailer.
Readers are responsible for verifying facts, prices, and product details before making any purchasing or usage decisions. Reaction Games does not guarantee the completeness, reliability, or suitability of the information presented and accepts no liability for errors, omissions, or outcomes resulting from its use.
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