3D printing resins
3D printing resins are liquid materials that the printer cures with ultraviolet light in thin layers. Here you will find standard resins for detailed models, tough ones with properties close to ABS, flexible, water-washable and castable types. Choose according to your printer wavelength, the properties you need and the colour.
3D printing resins
Where a filament printer melts plastic, a resin printer cures it with light: the screen projects the layer into a vat of liquid, and the liquid solidifies wherever it is lit. The result is smooth models with detail that filament cannot capture — which is why resin serves for figures, miniatures, jewellery patterns and precise prototypes.
Standard resins are the cheapest and draw the finest detail, but finished prints stay fairly brittle. Tough and ABS-like types take more mechanical load, so they suit parts that get screwed together or bent. Flexible and water-washable resins solve two different problems: the first flexibility, the second convenience — you rinse the print with water instead of isopropyl alcohol. Castable resins form a group of their own: they burn out without residue and serve for casting metal.
Before buying, check the wavelength your printer works at: 405 nm is standard, but others exist, and the wrong resin will not cure properly. Watch viscosity too, the recommended exposure times, and shrinkage, which affects dimensional accuracy.
Liquid resin irritates skin and eyes, so work with nitrile gloves in a well-ventilated room and avoid splashes. After printing, parts are washed in isopropyl alcohol or water and then post-cured under ultraviolet light — only then is the surface stable. Keep the bottle closed, in the dark and out of reach of children and pets; do not pour leftovers or the wash bath down the drain, but dispose of them according to the manufacturer and local rules. Always go by the safety data sheet for the product.