PX223 PIG (Pigmented)
Additive grade
also ABS-like Casting Resin
Use when the cast part must be through-coloured (typically black) instead of painted; add 1–3 % PU colour paste to component A.
Values for the PIG condition
Other PX223 grades and fills
PX223 is listed in 2 conditions; see the grade overview at PX223.
- PIG
- HT
Compare all 2 grades and fillsHide
| Grade · open for datasheet | Best for | Yield MPa | Tensile MPa | Elong. % | Hardness |
|---|---|---|---|---|---|
PIGThis page Pigmented | Use when the cast part must be through-coloured (typically black) instead of painted; add 1–3 % PU colour paste to component A. | 52 | 58 | 10 | 80 Shore D |
Heat-resistant version with elevated post-cure | Pick when the part must survive short heat exposure (paint bake, under-hood mock-up); needs a post-cure cycle near 100 °C. | — | 65 | 8 | 82 Shore D |
What is PX223 PIG?
PX223 PIG is PX223 in the PIG grade — use when the cast part must be through-coloured (typically black) instead of painted; add 1–3 % PU colour paste to component A. PX223 PIG has a tensile strength of 58 MPa (8.41 ksi), stronger than 66% of polymer grades. Elongation at break is 10% and the elastic modulus is 2.4 GPa (0.341 Msi). PX223 PIG has a density of 1.12 g/cm³ (0.0405 lb/in³), lighter than 64% of polymer grades. Its glass-transition temperature is 80°C (176 °F).
Advantages
- Low, predictable mold shrinkage — 0.15%, better than 97% of polymer grades
- Easy to machine — 80/100, better than 84% of polymer grades
- Polishes to a fine finish — 70/100, better than 77% of polymer grades
Limitations
- Limited service temperature — 70°C (158 °F), worse than 77% of polymer grades
PX223 PIG properties
Typical room-temperature values for PX223 PIG; 24 are specific to this condition. Other listed values are PX223 reference data and may not represent this condition. Bars are the position among polymer grades.
Physical3
PX223 PIG has a density of 1.12 g/cm³ (0.0405 lb/in³), lighter than 64% of polymer grades. Its glass-transition temperature is 80°C (176 °F).
Mechanical9
PX223 PIG has a tensile strength of 58 MPa (8.41 ksi), stronger than 66% of polymer grades. Elongation at break is 10% and the elastic modulus is 2.4 GPa (0.341 Msi).
Thermal9
PX223 PIG is rated for continuous service to 70°C (158 °F). It conducts heat at 0.21 W/m·K (0.121 BTU/hr·ft·°F), better than 55% of polymer grades. Thermal expansion is 90 µm/m·K (50 µin/in·°F).
Electrical3
PX223 PIG is an electrical insulator with a dielectric strength of 18 kV/mm (457.2 V/mil).
Chemical & Environmental2
UV resistance is fair.
Sustainability3
Producing a kilogram of PX223 PIG takes about 100 MJ of energy and emits 5 kg of CO₂ — less than 61% of polymer grades. Typical recycled content is 0%.
Manufacturability4
PX223 PIG's machinability is very good (80/100, better than 84% of polymer grades).
Values are nominal handbook figures for design screening. Confirm any required mill or lot documentation when quoting.
Working with PX223 PIG
Is PX223 easy to machine?
Machines and sands easily with sharp carbide tools and light feeds; use dust extraction and avoid overheating which softens the surface.
Can PX223 be welded?
Thermoset — cannot be welded; join with cyanoacrylate, two-part epoxy or PU adhesive, or cast-in inserts.
Can PX223 be formed, bent or molded?
Degas both components, mix at the datasheet ratio, vacuum-cast into silicone moulds and demould after roughly 30–60 min at 65–70 °C; HT version needs an added high-temperature post-cure.
What surface finishes work on PX223?
Sands and primes readily; standard practice is filler-primer plus 2K PU or acrylic topcoat, and it accepts vacuum metallising or texture paints.
PX223 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 |
|---|---|---|
| polyol blend (polyether/polyester componamine/tin catalysed, may contain fillers and pigments | 60 – 70 | 65 |
| MDI-based polyisocyanate (component B)aromatic isocyanate prepolymer | 30 – 40 | 35 |
| colour paste / additivesoptional pigment, degassing and release additives | 0 – 3 | 1 |
PX223 PIG — frequently asked
What is PX223 PIG used for?
PX223 PIG is typically used for vacuum casting prototypes, small-batch appearance housings, assembly and fit-check parts, pre-production enclosure samples, pigmented colour models and painted and vacuum-metallised display parts. In short: general-purpose photopolymer resin.
What is the tensile strength of PX223 PIG?
PX223 PIG has a typical tensile strength of 58 MPa (8.41 ksi) — stronger than 66% of polymer grades. Strength varies by condition: see the 2 listed tempers.
Is PX223 PIG easy to machine?
Yes — machinability is rated very good (80/100, better than 84% of polymer grades). Machines and sands easily with sharp carbide tools and light feeds; use dust extraction and avoid overheating which softens the surface.
Can PX223 PIG be welded?
Thermoset — cannot be welded; join with cyanoacrylate, two-part epoxy or PU adhesive, or cast-in inserts.
What surface finishes work on PX223 PIG?
Sands and primes readily; standard practice is filler-primer plus 2K PU or acrylic topcoat, and it accepts vacuum metallising or texture paints.
Can PX223 PIG be formed, bent or molded?
Degas both components, mix at the datasheet ratio, vacuum-cast into silicone moulds and demould after roughly 30–60 min at 65–70 °C; HT version needs an added high-temperature post-cure.
What is the maximum service temperature of PX223 PIG?
PX223 PIG is rated for continuous use to about 70°C (158 °F), and briefly to 90°C. Strength falls off well before that limit — check the elevated-temperature data for load-bearing parts.
Can FabDigit make parts in PX223 PIG?
Yes — PX223 PIG 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
- PX 223 / PX 223 HT polyurethane vacuum casting resin technical datasheet — Axson Technologies (Sika Advanced Resins) (2019)
- Polyurethanes: Science, Technology, Markets and Trends — Wiley (2014)
- Rigid polyurethane casting resin property ranges — CES EduPack / Ashby material data (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.