A ceramic-filled, high-temperature SLA resin — ceramic-hard stiffness and dimensional stability to a 218 °C heat deflection temperature, the highest figure of any material we print. RYSE 3D prints it on the Formlabs Form 4L in Shipston-on-Stour for fine-detail rigid parts that see real heat: short-run mould tooling, thermal test parts, wind-tunnel models and stiff fixtures.
Also known as high temperature resin · ceramic-filled resin · rigid resin · heat-resistant resin · high-temp SLA resin

Most resins soften long before 100 °C. Ceramic-filled is different — the ceramic loading gives it a 218 °C heat deflection temperature, 65 MPa tensile strength and ceramic-hard stiffness, so parts hold their shape under heat and load. That makes it the resin for high-temperature 3D printing: heat-resistant tooling, mould and casting inspection, thermal testing and stiff fixtures with the fine detail of stereolithography.
Printed and finished in-house on our UK SLA platform, Ceramic-Filled comes off the machine with a smooth, stone-like rigid surface — dimensionally stable, stiff and ready for hot, demanding environments. It is the only resin in our range that will sit against a heated tool or hot air without walking out of tolerance.
Note that it trades toughness for stiffness. At around 1% elongation at break it is rigid and brittle — it will crack rather than flex. Specify it for static, clamped and heat-exposed parts, and read the honest limits below before you put it anywhere it can be knocked.
Headline properties for our High-Temp Ceramic-Filled resin.
Reviewed by the RYSE 3D engineering team · August 2026. Download the full datasheet below, or have it confirmed with your instant quote. Values vary with geometry and orientation.
| Property | Value |
|---|---|
| Heat deflection temperature | 218 °C |
| Ultimate tensile strength | 65 MPa |
| Elongation at break | 1% |
| Character | Ceramic-hard, stiff, stable |
| Stiffness | Ceramic-hard, rigid |
Where you need the detail of SLA 3D printing and stability under heat.

Short-run injection mould masters & inserts

Heat-resistant & fluid-exposed jigs and fixtures

Aerodynamic & wind-tunnel test models

Prototypes that simulate glass- & fibre-filled thermoplastics

Moulds for blow moulding

Moulds for thermoforming
Our most heat-resistant material in any process — parts stay dimensionally stable at temperatures that soften standard resins before 100 °C.
Ceramic loading gives exceptional rigidity — parts hold shape under clamping, load and heat rather than creeping.
Layup and forming tools, mould and casting inspection parts, and fixtures that work next to heat without a machined-metal bill.
Sharp features and a smooth surface straight off the machine at 25–100 micron layers — rigid parts with real precision.
Strong as well as stiff — the highest tensile strength of any resin in our SLA range.
The stiffness and stone-like feel make it a credible stand-in for glass- and fibre-filled mouldings at the prototype stage.
Typical guidelines for SLA Ceramic-Filled on the Form 4L. Being rigid at around 1% elongation, avoid thin unsupported walls and snap-fits. We'll confirm the specifics for your part with a free design-for-additive review at quote.
| Design feature | Typical guideline |
|---|---|
| Build envelope (Form 4L) | 353 × 196 × 350 mm |
| Layer thickness | 25–100 microns |
| Minimum wall thickness | 0.5 mm |
| Tolerance | ±0.15 mm or ±0.2% |
| Supports | Required for SLA — removed and finished in-house, so tell us which faces are cosmetic or working surfaces |
| Orientation | We orient in PreForm to keep supports off tooling faces and to avoid peel forces cracking large flat rigid sections |
| Brittleness | At ~1% elongation, design out snap-fits, living hinges and thin cantilevers — add fillets and generous radii at every corner |
| Service temperature | Stable to a 218 °C heat deflection temperature — the highest figure across everything we print |
| Bigger than the platform? | Split, print, bond and finish the assembly — or move to FDM for a one-piece part up to 900 mm |
| Finish | Smooth, stone-like rigid finish as-printed; can be sanded for a working tool face |
Every Ceramic-Filled part we ship is printed on the Formlabs Form 4L, washed on the Form Wash L and post-cured on the Form Cure L — print, wash, cure and finish all in-house, so nothing leaves the building between the CAD and the finished part. Build envelope is 353 × 196 × 350 mm, large enough for a full-size mould insert or fixture in a single piece rather than split and bonded.
We run the Form 4L in open mode, which means we are not restricted to a single supplier's resin range. That is what lets us offer a ceramic-filled high-temperature grade alongside the rest of our resin range, and choose the right resin for your part rather than the one the machine came with.
Ceramic-Filled buys you heat and stiffness that nothing else in our range gets close to. What it does not buy you is toughness. These are the cases where something else wins — told straight, so you don't find out after the first batch.
At around 1% elongation at break this is a brittle material — it cracks rather than flexes. For a part that gets dropped, handled or assembled repeatedly, SLA Black PU at 79% elongation is the right resin.
Any feature that has to deflect to work will snap off on first assembly. Design them out, or move the part to Black PU or an SLS nylon where ductility is available.
218 °C is a heat deflection figure, not a licence to carry load hot. For a rigid part that must hold load and heat together, PET-CF at 205 °C or PPA-CF at 192 °C are engineering thermoplastics rather than filled photopolymers.
The Form 4L platform is 353 × 196 × 350 mm. Beyond that a part has to be split and bonded — and a bonded joint in a brittle material is a weak point. Our FDM range prints up to 900 mm in one piece.
SLA needs supports and they touch the part. Internal lattices, trapped voids and all-over cosmetic surfaces are better on SLS, where the powder bed carries the part and nothing needs removing from a brittle surface.
Cured photopolymers discolour and embrittle under sustained UV, and this one starts brittle. For parts that live outside, FDM ASA is UV-stable and built for it.
One question decides this: does the part see heat, or does it get handled? Ceramic-Filled is the stiff, high-temperature resin and the most brittle of the three. For a tough, impact-tolerant part see SLA Black PU; for optical clarity, SLA Clear; for flexibility, Flexible 80A. Full range on all 3D printing materials.
| Property | Ceramic-Filled (this page) | SLA Black PU | SLA Clear |
|---|---|---|---|
| Character | Ceramic-hard, stiff, brittle | Tough, cast-urethane-like | Optically clear, polishable |
| Heat deflection | 218 °C | 70 °C | 61 °C |
| Ultimate tensile strength | 65 MPa | 40 MPa | 51 MPa |
| Elongation at break | 1% | 79% | 10% |
| Impact tolerance | Poor — cracks rather than flexes | Good | Moderate |
| Minimum wall thickness | 0.5 mm | 0.5 mm | 0.5 mm |
| Best for | Heat-resistant tooling and rigid fixtures | Detail plus handling toughness | Lenses, light-pipes, see-through parts |
Note: all three are SLA photopolymers printed on the same platform, so these figures sit on a comparable footing — unlike cross-process comparisons, where tensile and impact are quoted to different standards and cannot be ranked against each other. Heat deflection is the deciding figure here, and 218 °C is the highest across every material we print in any process.
Upload your CAD for an instant online quote in SLA Ceramic-Filled resin — from a single thermal test part to a batch of heat-resistant tooling. Printed and finished in the UK.
Printed and finished at our own ISO 9001 facility in Shipston-on-Stour, Warwickshire. Call us on 024 7736 0144.