What materials can be used for SLA 3D printing?
RYSE 3D runs six SLA (stereolithography) resins: a clear resin, a tough cast-urethane-like Black PU, a flexible 80A elastomer, a high-temperature ceramic-filled resin, a UL94 V0 flame-retardant resin and a static-dissipative ESD resin. Each is chosen for a specific property, from optical clarity to heat, flame or ESD safety.
What is SLA (resin) 3D printing best for?
SLA excels at fine detail, smooth surfaces and specialist properties that powder processes can’t match — optically clear parts, flame-retardant or ESD-safe housings, high-temperature tooling and soft flexible parts. It suits detailed prototypes, presentation models and functional end-use parts.
Do you offer a clear (transparent) resin?
Yes — our clear resin polishes to near-transparency for lenses, light-pipes, fluidic devices and see-through housings. Tell us the level of clarity you need and we’ll advise on finishing.
Which SLA resin is most heat-resistant?
The ceramic-filled resin is our most heat-resistant, stable to a heat deflection temperature of around 218 °C — ideal for tooling and parts that see elevated temperatures.
Do you have a flame-retardant or ESD-safe resin?
Yes — a UL94 V0 flame-retardant resin for fire-rated enclosures and covers, and a static-dissipative ESD resin for handling and housing sensitive electronics.
Can SLA print flexible or rubber-like parts?
Yes — our flexible 80A resin is a soft, rubber-like elastomer that measures 83 Shore A post-cured and stretches to around 230%, ideal for gaskets, grips, seals and soft-touch parts with fine detail.
Where can I find SLA resin material properties and datasheets?
Each resin above lists its key material properties, and full datasheets are available on request or confirmed with your instant online quote.
How do I order SLA resin parts in the UK?
Upload your CAD to our instant online quote and select an SLA resin. As a UK 3D printing service bureau we print, finish and inspect in-house in Shipston-on-Stour, Warwickshire, and ship UK-wide. Cost per part depends on geometry and quantity, from prototyping to production.
How does SLA 3D printing work?
Stereolithography builds parts by curing liquid photopolymer resin with a laser, tracing each cross-section on the surface of a resin vat. The platform moves, a fresh layer of resin flows across, and the process repeats. Finished parts are washed to remove uncured resin, supports are taken off, and the part is UV post-cured to reach full mechanical properties.
Does SLA 3D printing need supports?
Yes. Unlike SLS and MJF, where loose powder supports the part, resin parts are built on support structures that are removed afterwards. We orient parts so support witness marks fall on non-critical faces — tell us which surfaces are cosmetic or dimensionally critical and we will orient accordingly.
Which SLA resin is the strongest?
Ceramic-filled leads on tensile strength at 65 MPa and heat deflection at 218 °C, but it is stiff and brittle with only 1% elongation. For a part that has to survive impact, Black PU (Cast-Like) is the stronger practical choice at 40 MPa and 79% elongation — strength and toughness are not the same requirement.
How clear is your clear resin?
Clear resin prints translucent and polishes to near-transparency. Polished, it transmits light well enough for lenses, light-pipes and fluidic devices. It is not optical glass — for demanding optical work tell us the application and our engineers will confirm whether it is suitable before you commit.
Can SLA parts be used outdoors?
Not for prolonged outdoor exposure. Cured photopolymer resins can discolour and become brittle under sustained UV. For outdoor parts we would point you to FDM ASA, which is UV and weather stable, or an SLS nylon — and we will say so rather than sell you the wrong process.
What is the largest SLA part you can print?
Our SLA build envelope runs up to 353 mm. For larger parts we split the geometry, print the sections, bond them and inspect the finished assembly — or move the job to SLS at up to 490 × 490 × 740 mm or FDM at 500 × 500 × 900 mm.
Is SLA or SLS better for my part?
Choose SLA for the finest detail, the smoothest surface, optical clarity, or a specialist property like UL94 V0 flame retardancy or ESD safety. Choose SLS for functional nylon parts, no supports, greater ductility, larger sizes and lower cost per part at volume. If you are unsure, send the CAD and we will tell you which fits.
Can you print flame-retardant or ESD-safe parts in resin?
Yes. We run a UL94 V0 flame-retardant resin for flame-rated enclosures, electrical housings and rail or aerospace covers, and a static-dissipative ESD resin for electronics jigs, trays, fixtures and handling tools.
