3D Printing Resins You Should Know About!

As far as desktop systems go, fused deposition modeling (FDM) may be a great technology for prototyping parts, but when high speeds and detail are required, low-cost stereolithography (SLA) and digital light processing (DLP) 3D printers may be better suited.

3D printing via photopolymerization relies on hardening photoreactive liquid plastic with a light source, typically projecting ultraviolet (UV) light. The setup of most SLA and DLP 3D printers sees the light source—in the form of a laser, a lamp, a projector or light-emitting diodes—projected onto a vat of photopolymer resin. 3d printing service Andhra Pradesh, Karnataka, Kerala and Tamil Nadu,india,chennai,bengaluru,kolkata,lucknow,kanpur,india

General Purpose Resins
To start, there are a number of firms producing 3D printing resins for desktop machines. Though many 3D printer manufacturers sell their proprietary materials, several generic brands have taken to making their own varieties for these systems, including MadeSolid, MakerJuice and Spot-A Materials.

Tough Resins
Typically photopolymer resins used for 3D printing on desktop machines are somewhat fragile, leaving those delicate details susceptible to snapping and cracking. For this reason, the technology has been used more frequently for aesthetic purposes, such as artistic models and visual prototypes. To address these issues, numerous companies have begun producing tougher and more durable resins.

Castable Resins

Casting has long been a process supported by photopolymerization technologies, with industrial manufacturers often marketing SLA and DLP machines to the dental and jewelry markets for the ability to fabricate parts that can be cast as metal. Naturally, producers of resins for desktop machines began with low-cost casting resins.

Flexible Resins

There are a limited number of manufacturers of flexible resins, including Formlabs, FSL3D and Spot-A Materials, all of which make a material for printing rubbery parts. This is ideal for prototyping elastic products, such as water bottles, handles and grips. Careful not to stretch too much or these components might tear!

High-Temp Resins
Formlabs, however, is so far the only low-cost manufacturer to produce a resin that can withstand high temperatures. The material has a heat deflection temperature (HDT) of 289 °C (552 °F) at a loading of 0.45 MPa , which is not just good for desktop SLA, but for all 3D printing photopolymers, including industrial systems. It can therefore be used for such applications as producing injection molding tools, testing channels designed for hot air or fluids and creating tools for thermoforming and casting.

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Ceramic Resins
Tethon3D is a materials company focused on ceramics for 3D printing, first creating its own ceramics material for 3D Systems' binder jetting 3D printers. The Nebraska-based company then launched a crowdfunding campaign for a resin called Porcelite.

Open-Source Resins

It's a bit unclear how many folks are purchasing or building Autodesk's open-source Ember 3D printer, but the software company deserves props for releasing the complete designs for its DLP machine. More than that, Autodesk actually opened up the recipe for its photopolymer resin as well. The company's standard clear resin can be developed at home or in a lab or modified to produce new materials.