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All you need to know about 3D printing with resin

When 3D printing with Resin, each layer is created by curing, which is the process of employing light to harden a liquid resin. This is the characteristic that distinguishes resin-based printing, often known as resin 3D printing or vat polymerization.

Comparing resin printers to other desktop options like FDM 3D printing, resin printers can produce a significantly greater resolution and level of precision. Because of this, aesthetic applications like artistic models and visual prototypes, as well as intricate elements like those utilized in the jewelry industry, frequently make use of the technology.

However, common photopolymer resins are somewhat brittle and expose your prints’ finer details to cracking and snapping. Some businesses have introduced stronger and more resilient resins to address this problem.

Introducing Tough Resin

For applications needing materials that can sustain severe strain and stress, tough resins are produced. In fact, as we’ll see later, the cured pieces made from strong resins can even compete mechanically with polymers used in industry.

Tough resin is a fantastic option for sturdy, functioning prototypes and components that must withstand brief periods of mechanical stress because it balances strength with compliance. Since it can tolerate some wear and tear, it is perfect for wearables, electronics, and other items.

When compared to ordinary resins, such resins can provide unique difficulties. Some would need professional 3D printers, while others are just out of most hobbyists’ and home power users’ price ranges.

What are the different resins used when 3D printing with resin


  • Produces sturdy, shatter-resistant parts
  • Ideal for functional prototypes and mechanical assemblies
  • Has excellent resistance to cyclic loads
  • Not suited for thin walls (1 mm is the recommended minimum)
  • Harder to remove from the build platform than standard resins
  • May cost up to $300/kg


  • Produces fragile parts with low impact resistance
  • Ideal for detailed and high-resolution prints
  • Produces smooth surface finishes
  • Affected by color (like smooth/shiny finishes)
  • Relatively easy to use
  •  Low cost

Peopoly Moai Tough Resin – Mostly used when 3d printing with resin

Peopoly’s Tough Resin is perfect for true SLA 3D printers. At first, the material will be softer during the printing process. This is why the folks at Peopoly recommend using extra support and preferably at temperatures of 25 °C or higher.

For post processing, resin needs some extra care: at least 30 minutes of post-curing with parts submerged in water. However, all of these steps will eventually pay off, resulting in smooth and very tough parts at a very low cost.

  • Manufacturer: Peopoly
  • Tensile strength: 45 MPa
  • Young’s modulus: 1500 MPa
  • Shore D hardness: 84
  • Color: Transparent

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