Standard Resin · reinforced grade
Standard Resin RIGID-FILL
Properties of the RIGID-FILL condition, compared with the other Standard Resin grades.
Use for stiff, dimensionally stable jigs and thin-wall housings that must not creep; very stiff but brittle and abrasive to tooling.
What is Standard Resin RIGID-FILL?
Standard Resin RIGID-FILL is Standard Resin in the RIGID-FILL grade — use for stiff, dimensionally stable jigs and thin-wall housings that must not creep; very stiff but brittle and abrasive to tooling. Standard Resin RIGID-FILL has a yield strength of 48 MPa (6.96 ksi) and a tensile strength of 68 MPa (9.86 ksi) — weaker than 57% of polymer grades. Elongation at break is 2.5% and the elastic modulus is 4.1 GPa (0.595 Msi). Standard Resin RIGID-FILL has a density of 1.55 g/cm³ (0.056 lb/in³), heavier than 90% of polymer grades. Its glass-transition temperature is 60°C (140 °F). Standard is the default condition FabDigit quotes; RIGID-FILL is available on request or by drawing note.
Advantages
- Stiff — 4.1 GPa (0.595 Msi), better than 86% of polymer grades
- Polishes to a fine finish — 75/100, better than 86% of polymer grades
Limitations
- Limited formability — 5/100, worse than 95% of polymer grades
- Low fracture toughness — 0.8 MPa·√m (0.728 ksi·√in), worse than 92% of polymer grades
- Heavy — 1.55 g/cm³ (0.056 lb/in³), worse than 90% of polymer grades
- Difficult to weld — 5/100, worse than 90% of polymer grades
- Limited ductility — 2.5%, worse than 89% of polymer grades
Standard Resin RIGID-FILL properties
Typical room-temperature values for Standard Resin RIGID-FILL — 12 properties are specific to this condition; the rest are grade-level values shared by every Standard Resin grade. Each bar shows where the value sits among the polymer grades in FabDigit's library — further right is higher.
Physical5
Standard Resin RIGID-FILL has a density of 1.55 g/cm³ (0.056 lb/in³), heavier than 90% of polymer grades. Its glass-transition temperature is 60°C (140 °F).
Mechanical13
Standard Resin RIGID-FILL has a yield strength of 48 MPa (6.96 ksi) and a tensile strength of 68 MPa (9.86 ksi) — weaker than 57% of polymer grades. Elongation at break is 2.5% and the elastic modulus is 4.1 GPa (0.595 Msi).
Thermal10
Standard Resin RIGID-FILL is rated for continuous service to 70°C (158 °F). It conducts heat at 0.2 W/m·K (0.116 BTU/hr·ft·°F), worse than 56% of polymer grades. Thermal expansion is 55 µm/m·K (30.6 µin/in·°F).
Electrical6
Standard Resin RIGID-FILL is an electrical insulator with a dielectric strength of 15 kV/mm (381 V/mil) and a resistivity of 1×10¹² Ω·m.
Chemical & Environmental3
Corrosion resistance is very good (70/100), worse than 80% of polymer grades. UV resistance is poor.
Sustainability4
Producing a kilogram of Standard Resin RIGID-FILL takes about 125 MJ of energy and emits 5.5 kg of CO₂ — more than 75% of polymer grades. Typical recycled content is 0%.
Manufacturability4
Standard Resin RIGID-FILL's machinability is poor (30/100, worse than 88% of polymer grades); weldability not recommended (5/100); formability not recommended (5/100).
Values are nominal handbook figures for design screening. Certified mill or lot data ships with every FabDigit order on request.
Other Standard Resin grades and fills
Standard Resin is also supplied in 8 other conditions. The full side-by-side table is on the Standard Resin overview.
- StandardDefaultDefault: generic 355/385/405 nm standard resin, washed in IPA and UV/heat post-cured — use for appearance models and general prototypes.55 MPa tensile
- RIGID-FILLUse for stiff, dimensionally stable jigs and thin-wall housings that must not creep; very stiff but brittle and abrasive to tooling.68 MPa tensile
- ClearChoose for light pipes, fluidic/see-through models and parts to be polished or clear-coated to near-optical transparency.60 MPa tensile
- ABS-likePick when snap-fits, thin walls or drop resistance matter — much higher elongation and impact at the cost of stiffness and HDT.45 MPa tensile
- GREENPick when parts are used straight off the printer — noticeably softer, weaker and lower Tg; only for fit checks or parts to be cured later.38 MPa tensile
Working with Standard Resin RIGID-FILL
Is Standard Resin easy to machine?
Drills, mills and sands easily with sharp tools and light feeds, but is notch-sensitive — pre-drill, avoid heat build-up (softens near 60 °C) and wet-sand to prevent dust.
Can Standard Resin be welded?
Thermoset — cannot be heat welded; join with cyanoacrylate, epoxy or by wicking uncured resin into the seam and UV-curing.
Can Standard Resin be formed, bent or molded?
Formed only by vat photopolymerisation: 0.025–0.1 mm layers, supports and hollowing with drain holes, then IPA wash and 5–30 min UV post-cure at 40–60 °C; expect ~0.5–2 % cure shrinkage and warp on thick sections.
What surface finishes work on Standard Resin?
Sands from 400→2000 grit and buffs to gloss; primer-filler plus acrylic/PU paint is standard, clear coat restores transparency, and electroplating or vacuum metallising works after a conductive base coat — always apply UV-blocking coating for outdoor use.
Standard 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 oligomer, sets toughness and Tg | 30 – 60 | 45 |
| photoinitiator (TPO / TPO-L / BAPO)matched to 355/385/405 nm source | 0.5 – 4 | 2 |
| pigment / UV absorber / stabilizercontrols cure depth and colour; absent in clear grades | 0.1 – 3 | 1 |
| inorganic filler (silica, glass, ceramiconly in rigid/filled variants | 0 – 40 | 0 |
| acrylate/methacrylate reactive monomer (diluent + crosslinker, controls viscosity and crosslink density | ≥ 30 (balance) | — |
Standard Resin RIGID-FILL — frequently asked
What is Standard Resin RIGID-FILL used for?
Standard Resin RIGID-FILL is typically used for cosmetic prototypes, concept and display models, master patterns for silicone moulds and vacuum casting, painted appearance samples, fit-check and assembly mock-ups and fine-detail figurines and scale models. In short: workhorse SLA visual resin.
What is the yield strength of Standard Resin RIGID-FILL?
Standard Resin RIGID-FILL has a typical yield strength of 48 MPa (6.96 ksi) and a tensile strength of 68 MPa (9.86 ksi) — weaker than 57% of polymer grades. Strength varies by condition: see the 9 listed tempers.
Is Standard Resin RIGID-FILL easy to machine?
Not especially — machinability is rated poor (30/100, worse than 88% of polymer grades). Drills, mills and sands easily with sharp tools and light feeds, but is notch-sensitive — pre-drill, avoid heat build-up (softens near 60 °C) and wet-sand to prevent dust.
Can Standard Resin RIGID-FILL be welded?
Not readily — weldability is rated not recommended (5/100). Thermoset — cannot be heat welded; join with cyanoacrylate, epoxy or by wicking uncured resin into the seam and UV-curing.
What surface finishes work on Standard Resin RIGID-FILL?
Sands from 400→2000 grit and buffs to gloss; primer-filler plus acrylic/PU paint is standard, clear coat restores transparency, and electroplating or vacuum metallising works after a conductive base coat — always apply UV-blocking coating for outdoor use.
Can Standard Resin RIGID-FILL be formed, bent or molded?
Formed only by vat photopolymerisation: 0.025–0.1 mm layers, supports and hollowing with drain holes, then IPA wash and 5–30 min UV post-cure at 40–60 °C; expect ~0.5–2 % cure shrinkage and warp on thick sections.
What is the maximum service temperature of Standard Resin RIGID-FILL?
Standard Resin RIGID-FILL is rated for continuous use to about 70°C (158 °F), and briefly to 80°C. Strength falls off well before that limit — check the elevated-temperature data for load-bearing parts.
Can FabDigit make parts in Standard Resin RIGID-FILL?
Yes — Standard Resin RIGID-FILL is available for injection molding and 3D printing with instant online pricing. Upload a STEP file to get a price and a DFM check.
Sources
- Standard/Clear/Grey Resin material data sheets — Formlabs (2024)
- 405 nm standard photopolymer resin TDS — Anycubic / Elegoo / eSUN (2024)
- ISO 527 / ISO 178 / ASTM D638, D790, D648, D256 test methods — ISO / ASTM (2019)
- Photopolymer chemistry and properties of UV-curable acrylate networks — SPE / RadTech technical literature (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.