Ceramic-Filled Resin CF-HT
Grade
also Rigid / Ceramic-Filled Resin
CF-HT = high-temperature ceramic nanocomposite resin
For wind-tunnel models, hot-gas ducts and low-volume injection/vacuum tooling where high HDT plus stiffness is required.
Values for the CF-HT condition
Other Ceramic-Filled Resin grades and fills
Ceramic-Filled Resin is listed in 4 conditions; see the grade overview at Ceramic-Filled Resin.
Compare all 4 grades and fillsHide
| Grade · open for datasheet | Best for | Yield MPa | Tensile MPa | Elong. % | Hardness |
|---|---|---|---|---|---|
high-load sinterable ceramic slurry (alumina / silica, >50 wt% filler) | Choose only when the resin is a binder to be burned out — printed green parts are debound and sintered into a true technical ceramic. | — | 35 | 0.6 | 90 Shore D |
High-modulus ceramic-filled resin | Pick when maximum stiffness and creep resistance in thin sections matter more than toughness (mould inserts, fixtures, flow channels). | — | 65 | 1 | 89 Shore D |
CF-HTThis page High-temperature ceramic nanocomposite resin | For wind-tunnel models, hot-gas ducts and low-volume injection/vacuum tooling where high HDT plus stiffness is required. | — | 68 | 1.6 | 90 Shore D |
CF-STDDefault Standard glass/ceramic-filled rigid resin | Default choice for stiff thin-wall parts, housings and jigs where some impact tolerance is still needed. | — | 69 | 5 | 85 Shore D |
What is Ceramic-Filled Resin CF-HT?
Ceramic-Filled Resin CF-HT is Ceramic-Filled Resin in the CF-HT grade — for wind-tunnel models, hot-gas ducts and low-volume injection/vacuum tooling where high HDT plus stiffness is required. Ceramic-Filled Resin CF-HT has a tensile strength of 68 MPa (9.86 ksi), stronger than 74% of polymer grades. Elongation at break is 1.6% and the elastic modulus is 10.5 GPa (1.52 Msi). Ceramic-Filled Resin CF-HT has a density of 1.78 g/cm³ (0.0643 lb/in³), heavier than 95% of polymer grades. Its glass-transition temperature is 90°C (194 °F). CF-STD is the default condition FabDigit quotes; CF-HT is available on request or by drawing note.
Advantages
- Conducts heat well — 0.45 W/m·K (0.26 BTU/hr·ft·°F), better than 97% of polymer grades
- Stiff — 10.5 GPa (1.52 Msi), better than 95% of polymer grades
- Low, predictable mold shrinkage — 0.35%, better than 86% of polymer grades
Limitations
- Limited ductility — 1.6%, worse than 97% of polymer grades
- Heavy — 1.78 g/cm³ (0.0643 lb/in³), worse than 95% of polymer grades
- Limited formability — 5/100, worse than 95% of polymer grades
- Difficult to weld — 5/100, worse than 89% of polymer grades
- Low fracture toughness — 1 MPa·√m (0.91 ksi·√in), worse than 87% of polymer grades
Ceramic-Filled Resin CF-HT properties
Typical room-temperature values for Ceramic-Filled Resin CF-HT; 14 are specific to this condition. Other listed values are Ceramic-Filled Resin reference data and may not represent this condition. Bars are the position among polymer grades.
Physical4
Ceramic-Filled Resin CF-HT has a density of 1.78 g/cm³ (0.0643 lb/in³), heavier than 95% of polymer grades. Its glass-transition temperature is 90°C (194 °F).
Mechanical12
Ceramic-Filled Resin CF-HT has a tensile strength of 68 MPa (9.86 ksi), stronger than 74% of polymer grades. Elongation at break is 1.6% and the elastic modulus is 10.5 GPa (1.52 Msi).
Thermal9
Ceramic-Filled Resin CF-HT is rated for continuous service to 120°C (248 °F). It conducts heat at 0.45 W/m·K (0.26 BTU/hr·ft·°F), better than 97% of polymer grades. Thermal expansion is 38 µm/m·K (21.1 µin/in·°F).
Electrical5
Ceramic-Filled Resin CF-HT is an electrical insulator with a dielectric strength of 17 kV/mm (431.8 V/mil) and a resistivity of 1×10¹² Ω·m.
Chemical & Environmental3
Corrosion resistance is very good (80/100), worse than 52% of polymer grades. UV resistance is poor.
Sustainability4
Producing a kilogram of Ceramic-Filled Resin CF-HT takes about 110 MJ of energy and emits 6.5 kg of CO₂ — more than 64% of polymer grades. Typical recycled content is 0%.
Manufacturability5
Ceramic-Filled Resin CF-HT's machinability is fair (35/100, worse than 84% of polymer grades); weldability not recommended (5/100); formability not recommended (5/100).
Values are nominal handbook figures for design screening. Confirm any required mill or lot documentation when quoting.
Working with Ceramic-Filled Resin CF-HT
Is Ceramic-Filled Resin easy to machine?
Machines and drills cleanly but the ceramic filler is abrasive — use carbide/diamond tooling, light cuts, sharp geometry to avoid edge chipping, and dust extraction.
Can Ceramic-Filled Resin be welded?
Thermoset — cannot be welded; join with cyanoacrylate, epoxy or UV-cure adhesive on abraded, IPA-clean surfaces.
Can Ceramic-Filled Resin be formed, bent or molded?
Printed on SLA/DLP at 25–35 °C tank temperature; stir/agitate to prevent filler settling, keep layers ≤100 µm, and thermal post-cure (e.g. 60–80 °C UV oven, high-HDT grades up to 130–160 °C) to reach datasheet stiffness and HDT.
What surface finishes work on Ceramic-Filled Resin?
Sands and bead-blasts well to a uniform matte; prime-and-paint or lacquer for appearance and UV protection, since bare parts yellow and embrittle in sunlight; no plating without a conductive base coat.
Ceramic-Filled Resin chemical composition (wt %)
Limits by weight percent from the governing specification, written the way the spec states them — a single maximum for impurities, a range for alloying elements, and the base element as balance. Nominal is the typical mid-range value.
| Element | Spec limit (wt %) | Nominal |
|---|---|---|
| urethane/epoxy acrylate oligomerbackbone; sets Tg and toughness | 30 – 55 | 42 |
| acrylate/methacrylate reactive diluentviscosity control, crosslink density | 15 – 35 | 25 |
| glass / ceramic filler (silica, alumina,silane-treated; drives modulus, HDT and CTE reduction | 15 – 50 | 30 |
| photoinitiator + stabilisers/pigmenttypically acylphosphine oxide type for 385/405 nm | 0.5 – 3 | 1.5 |
Ceramic-Filled Resin CF-HT — frequently asked
What is Ceramic-Filled Resin CF-HT used for?
Ceramic-Filled Resin CF-HT is typically used for rigid jigs and fixtures, wind-tunnel models, high-stiffness enclosures and manifold/flow test parts. In short: stiffest photopolymer option; low-creep dimensional stability; abrasive, brittle filler.
What is the tensile strength of Ceramic-Filled Resin CF-HT?
Ceramic-Filled Resin CF-HT has a typical tensile strength of 68 MPa (9.86 ksi) — stronger than 74% of polymer grades. Strength varies by condition: see the 4 listed tempers.
Is Ceramic-Filled Resin CF-HT easy to machine?
Not especially — machinability is rated fair (35/100, worse than 84% of polymer grades). Machines and drills cleanly but the ceramic filler is abrasive — use carbide/diamond tooling, light cuts, sharp geometry to avoid edge chipping, and dust extraction.
Can Ceramic-Filled Resin CF-HT be welded?
Not readily — weldability is rated not recommended (5/100). Thermoset — cannot be welded; join with cyanoacrylate, epoxy or UV-cure adhesive on abraded, IPA-clean surfaces.
What surface finishes work on Ceramic-Filled Resin CF-HT?
Sands and bead-blasts well to a uniform matte; prime-and-paint or lacquer for appearance and UV protection, since bare parts yellow and embrittle in sunlight; no plating without a conductive base coat.
Can Ceramic-Filled Resin CF-HT be formed, bent or molded?
Printed on SLA/DLP at 25–35 °C tank temperature; stir/agitate to prevent filler settling, keep layers ≤100 µm, and thermal post-cure (e.g. 60–80 °C UV oven, high-HDT grades up to 130–160 °C) to reach datasheet stiffness and HDT.
What is the maximum service temperature of Ceramic-Filled Resin CF-HT?
Ceramic-Filled Resin CF-HT is rated for continuous use to about 120°C (248 °F), and briefly to 110°C. Strength falls off well before that limit — check the elevated-temperature data for load-bearing parts.
Sources
- Rigid 10K / Rigid 4000 Resin technical data sheets — Formlabs (2023)
- Accura Bluestone / Accura CeraMAX Composite data sheets — 3D Systems (2022)
- Somos PerFORM / PerFORM Reflect data sheet — Covestro (DSM Somos) (2022)
- ASTM D638 / D790 / D256 / D648 test methods for plastics — ASTM (2022)
- Additive Manufacturing Technologies (vat photopolymerization chapter) — Springer (2021)
Property data is compiled from published supplier and standards handbooks and normalised for comparison. Nothing on this page is a certification — request mill certs, CoC or material test reports with your order.