PU-Nylon-like
PU-Nylon-like is a tough, wear-resistant polyurethane casting resin formulated to approximate the abrasion resistance and low friction of nylon (typical product PX233), supplied in natural, mineral/glass-filled, high-temperature, impact-modified, FR-V0 and UV-stable conditions.
Reference datasheet — PU-Nylon-like is not in the instant-quote catalog. Upload your part and an engineer will quote it in this grade or suggest the closest stocked equivalent.
PU-Nylon-like grades and fills
PU-Nylon-like is supplied in 4 conditions, soft to hard.
Compare all 4 grades and fillsHide
| Grade · open for datasheet | Best for | Yield MPa | Tensile MPa | Elong. % | Hardness |
|---|---|---|---|---|---|
Impact-modified / high-elongation tough grade | Choose for living hinges, snap arms and drop-test parts where ductility beats stiffness. | 42 | 80 | 74 Shore D | |
Flame-retardant grade | Required for electrical/electronic enclosure prototypes needing a V-0 declaration; heavier and less ductile. | 45 | 10 | 84 Shore D | |
mineral- or glass-filled (≈20–30 % filler) | Pick when stiffness, dimensional stability and heat resistance matter more than impact — e.g. housings and brackets. | 55 | 4 | 86 Shore D | |
Heat-resistant grade | Use for parts seeing 100–130 °C (under-hood, paint-bake or hot-water contact mock-ups); trades ductility for heat. | 62 | 8 | 85 Shore D |
Supply forms, finishes and certifications
Ways PU-Nylon-like is supplied — form, process route, surface or paperwork — without a datasheet of their own. The property values above apply.
| Option | What it is | Type |
|---|---|---|
UV | Light-stable / non-yellowing (aliphatic) version | Grade option |
NATDefault | Unfilled natural | Standard supply |
What is PU-Nylon-like?
PU-Nylon-like is a tough, wear-resistant polyurethane casting resin formulated to approximate the abrasion resistance and low friction of nylon (typical product PX233), supplied in natural, mineral/glass-filled, high-temperature, impact-modified, FR-V0 and UV-stable conditions. At 1.13 g/cm³ it provides 55 MPa tensile strength, 25 % elongation, Shore D 82 and service to 80 °C, which suits vacuum-cast gears, clips and bushing prototypes. As a thermoset it cannot be melt-welded, the 80 °C ceiling limits hot applications, and silicone tool life restricts volumes to low-run quantities. Move to machined or injection-moulded PA where full nylon chemical and thermal performance is needed. PU-Nylon-like has a density of 1.13 g/cm³ (0.0408 lb/in³), lighter than 55% of polyurethane grades. Its glass-transition temperature is 75°C (167 °F). PU-Nylon-like has a yield strength of 48 MPa (6.96 ksi) and a tensile strength of 55 MPa (7.98 ksi) — stronger than 56% of polyurethane grades. Elongation at break is 25% and the elastic modulus is 1.9 GPa (0.276 Msi).
What is PU-Nylon-like used for?
- Gear prototypes
- Sliding mechanism parts
- Snap-fit clips
- Bearing/bushing mockups
Advantages
- Easy to machine — 72/100, better than 76% of polyurethane grades
PU-Nylon-like properties
Typical room-temperature values; bars are the position among polyurethane grades.
Physical4
PU-Nylon-like has a density of 1.13 g/cm³ (0.0408 lb/in³), lighter than 55% of polyurethane grades. Its glass-transition temperature is 75°C (167 °F).
Mechanical12
PU-Nylon-like has a yield strength of 48 MPa (6.96 ksi) and a tensile strength of 55 MPa (7.98 ksi) — stronger than 56% of polyurethane grades. Elongation at break is 25% and the elastic modulus is 1.9 GPa (0.276 Msi).
Thermal10
PU-Nylon-like is rated for continuous service to 80°C (176 °F). It conducts heat at 0.2 W/m·K (0.116 BTU/hr·ft·°F), worse than 60% of polyurethane grades. Thermal expansion is 110 µm/m·K (61.1 µin/in·°F).
Electrical6
PU-Nylon-like is an electrical insulator with a dielectric strength of 20 kV/mm (508 V/mil) and a resistivity of 1×10¹² Ω·m.
Chemical & Environmental3
Corrosion resistance is very good (72/100), worse than 55% of polyurethane grades. UV resistance is poor.
Sustainability4
Producing a kilogram of PU-Nylon-like takes about 100 MJ of energy and emits 5.5 kg of CO₂ — less than 83% of polyurethane grades. Typical recycled content is 0%.
Manufacturability7
PU-Nylon-like's machinability is very good (72/100, better than 76% of polyurethane grades); weldability not recommended (5/100); formability not recommended (5/100).
Common Calculations5
Values are nominal handbook figures for design screening. Certified mill or lot data ships with every FabDigit order on request.
Strength versus weight in the polyurethane family
Yield strength against density for every polyurethane grade FabDigit runs. PU-Nylon-like is highlighted; hover a dot for its name, or open the interactive family chart.
Working with PU-Nylon-like
Is PU-Nylon-like easy to machine?
Machines and drills cleanly with sharp carbide tools at high speed / low feed; use light cuts to avoid heat softening and hold parts gently as it is notch sensitive at thin sections.
Can PU-Nylon-like be welded?
Thermoset — cannot be melt-welded; join with cyanoacrylate, two-part PU/epoxy adhesive or mechanical inserts (heat-set inserts only with care).
Can PU-Nylon-like be formed, bent or molded?
Degas both components, mix by weight and pour under vacuum into a silicone (RTV) mold pre-heated ~60–70 °C; demold in 30–60 min and oven post-cure 2–4 h at 70–80 °C (higher for HT grades) to reach full Tg and stated strength.
PU-Nylon-like 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 (polyether/polyester blend, part contains catalysts, defoamer, pigment | 45 – 60 | 52 |
| chain extender / crosslinker (diol or di | 1 – 6 | 2 |
| filler (mineral or milled glass, filled 0 % in the default unfilled grade | 0 – 30 | 0 |
| MDI-based isocyanate prepolymer (part B)aromatic MDI in standard grades; aliphatic HDI/IPDI in non-yellowing versions | ≥ 40 (balance) |
What surface finishes work on PU-Nylon-like?
Sands and primes well; paint, soft-touch coat, pad print or vacuum-metallize readily — no plating without a conductive base coat, and expect gradual yellowing of unpainted aromatic parts.
Equivalent designations
Standards and trade names that resolve to PU-Nylon-like in FabDigit's catalog. Equivalence is nominal — check the exact specification when certification matters.
- Also called
- Nylon Simulation Resin
How much does PU-Nylon-like cost?
PU-Nylon-like is a high-cost polyurethane ($$$$), pricier than about 78% of the materials FabDigit quotes. Part price depends far more on geometry, tolerance and quantity than on the raw stock — upload a CAD file for a live quote.
PU-Nylon-like — frequently asked
What is PU-Nylon-like used for?
PU-Nylon-like is typically used for gear prototypes, sliding mechanism parts, snap-fit clips and bearing/bushing mockups. In short: toughest vacuum-cast PU; nylon-substitute prototype resin; good wear and low friction.
What is the yield strength of PU-Nylon-like?
PU-Nylon-like has a typical yield strength of 48 MPa (6.96 ksi) and a tensile strength of 55 MPa (7.98 ksi) — stronger than 56% of polyurethane grades. Strength varies by condition: see the 4 listed tempers.
Is PU-Nylon-like easy to machine?
Yes — machinability is rated very good (72/100, better than 76% of polyurethane grades). Machines and drills cleanly with sharp carbide tools at high speed / low feed; use light cuts to avoid heat softening and hold parts gently as it is notch sensitive at thin sections.
Can PU-Nylon-like be welded?
Not readily — weldability is rated not recommended (5/100). Thermoset — cannot be melt-welded; join with cyanoacrylate, two-part PU/epoxy adhesive or mechanical inserts (heat-set inserts only with care).
What surface finishes work on PU-Nylon-like?
Sands and primes well; paint, soft-touch coat, pad print or vacuum-metallize readily — no plating without a conductive base coat, and expect gradual yellowing of unpainted aromatic parts.
Can PU-Nylon-like be formed, bent or molded?
Degas both components, mix by weight and pour under vacuum into a silicone (RTV) mold pre-heated ~60–70 °C; demold in 30–60 min and oven post-cure 2–4 h at 70–80 °C (higher for HT grades) to reach full Tg and stated strength.
What is the maximum service temperature of PU-Nylon-like?
PU-Nylon-like is rated for continuous use to about 80°C (176 °F), and briefly to 110°C. Strength falls off well before that limit — check the elevated-temperature data for load-bearing parts.
How much does PU-Nylon-like cost?
PU-Nylon-like is a high-cost polyurethane ($$$$), pricier than about 78% of the materials FabDigit quotes. Part price depends far more on geometry, tolerance and quantity than on the raw stock — upload a CAD file for a live quote.
Sources
- Hei-Cast 8150 / 8400 polyurethane vacuum casting resin data — H&K (Hei-Cast) (2022)
- Axson PX series (PX 223 / PX 233) casting polyurethane technical data — Axson Technologies / Sika (2021)
- RenCast / Biresin U polyurethane casting systems — Huntsman Advanced Materials / Sika (2020)
- Vacuum casting resin property comparison tables (PA-like, ABS-like, PC-like) — Prototyping service technical guides (2023)
Property data is compiled from published supplier and standards handbooks and normalised for comparison; hardness values on non-Brinell scales are converted approximately for charting only. Manufacturability limits are FabDigit quote-engine defaults and may be relaxed by engineering review. Nothing on this page is a certification — request mill certs, CoC or material test reports with your order.