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ABS Axson PX100 for Vacuum Casting Material
Axson PX100 is a versatile polyurethane resin engineered specifically for vacuum casting, offering low viscosity (150–300 mPa·s) for bubble-free filling and rapid curing (1–2 hours demold). It replicates engineering thermoplastics like ABS/PP across Shore A 50–D 80 hardness, with tensile strength of 25–50 MPa, elongation up to 350%, and heat resistance to 120°C. Available in standard/custom colors (including metallic/translucent effects), it excels in producing functional prototypes and low-volume batches (20–50 parts/mold) for automotive, electronics, and medical applications. While cost-effective for ≤100-unit runs and capable of <0.1-mm detail resolution, its silicone molds degrade after 15–30 uses, and prolonged >120°C exposure is inadvisable. Primary alternatives include Smooth-On Task Series and Polytek Poly 74xx resins.
Axson PX100

Basic Characteristics & Composition

Axson PX100 is a high-performance polyurethane (PU)-based resin engineered for vacuum casting. It replicates the mechanical, thermal, and aesthetic properties of engineering-grade thermoplastics (e.g., ABS, PP) or elastomers. Key characteristics include:
  • Low viscosity (typically 150–300 mPa·s) for bubble-free filling in vacuum environments.
  • Rapid curing: Demolding in 1–2 hours, enabling 24-hour production cycles.
  • Dual-component system: Precisely mixed Isocyanate (Part A) and Polyol (Part B) resins.
ABS Axson PX100 for Vacuum Casting Material

Color Options

PX100 offers versatility in pigmentation:
Standard Colors Custom Options Special Effects
Black, White, Gray Pantone-matched Translucent, Glow-in-the-dark
Ivory, Beige Metallic finishes Rubber-like textures

Key Technical Parameters

PHYSICAL PROPERTIES
    PART A PART A MIXING
Composition   ISOCYANATE POLYOL  
Mixing ratio by weight   100 100  
Aspect   liquid liquid liquid
Colour   light to dark amber yellow straw Off-white
Viscosity at 25°C (mPa.s) BROOKFIELD LVT 60 175 100
Specific gravity at 25°C
Specific gravity at 23°C		 ISO 1675 :1975
ISO 2781 :1988		 1.15
-		 1.02
-		 -
1.06
Pot life at 25°C on 200g (min.) -     15

PROCESSING 
Weigh according to the indicated ratio. Mix until a homogeneous and transparent mixing is obtained. Degas for 5 minutes. Cast in a silicone mold at room temperature or pre-heated at 95° F/(35° C) – 104° F/(40° C) to accelerate the process. After demolding cure 2 hours at 158° F/(70° C) in order to obtain the optimal properties.
 
PRECAUTIONS 
Normal health and safety precautions should be observed when handling these products : 
. ensure good ventilation 
. wear gloves and safety glasses 
For further information, please consult the material safety data sheet.
 
MECHANICAL PROPERTIES AT 73° F/(23° C) AFTER POSTCURE 
Flexural modulus of elasticity ISO 178 :2001 Psi/(MPa) 218,000/(1,500)
Maximal flexural strength ISO 178 :2001 Psi/(MPa) 8,000/(55)
Maximal tensile strength ISO 527 :1993 Psi/(MPa) 5,800/(40)
Elongation at break ISO 527 :1993 % 20
CHARPY impact strength ISO 179/2D :1994 ft.Lb.f/in2 /( kJ/m2 ) 12/(25)
Izod impact strength - notched ASTM D 256-05 ft.Lb.f/in2 /( kJ/m2 ) 2/(4)
Izod impact strength - unnotched ASTM D 256-05 ft.Lb.f/in2 /( kJ/m2 ) 8/(16)
Hardness - at 73° F/(23° C)
                 - at 176° F/(80° C)		 ISO 868 :1985 Shore D1 74
65
 
THERMAL & SPECIFIC PROPERTIES
Glass temperature transition TMA METTLER °F/(°C) 167/(75)
Linear shrinkage - % 0.4
Maximal casting thickness - In./(mm) 0.2/(5)
Demolding time @ 23°C - Hours 4
Complete hardening time @ 23°C - days 4
  • Average values obtained on standard specimens/Postcure 12 hr at 158° F/(70° C)

    STORAGE
Shelf life is 6 months for PART A (Isocyanate) and 12 months for PART B (Polyol) in a dry place and in original unopened containers at a temperature between 60° F/(15° C) and 77° F/(25° C). Any open container must be tightly closed under dry nitrogen blanket.
 

Application Scenarios & Fields

Prototyping: Functional prototypes mimicking injection-molded parts (e.g., housings, gears).
Low-Volume Production: Batches of 20–50 parts per silicone mold1.
Industries:
  • Automotive: Ducts, gaskets, interior trim.
  • Consumer Electronics: Buttons, casings, wearables.
  • Medical: Simulated devices (biocompatible grades available).

Vacuum Casting Process Compatibility

PX100 excels in vacuum casting due to:
  • Vacuum Stability: Minimal entrapped air; achieves ISO 21920-compliant surface finishes1.
  • Mold Compatibility: Bonds cleanly with silicone molds (e.g., Tin-cure or Plat-cure RTV).
  • Process Workflow:
  1. Degas resin components under vacuum.
  2. Inject into silicone mold at 20–40 mbar.
  3. Cure at 40–70°C.

Advantages vs. Limitations

Advantages Limitations
▶ Cost-effective for batches < 100 units ◐ Mold life: 15–30 uses
▶ Wide material flexibility (rigid to soft) ◐ Not suitable for >120°C long-term
▶ Detail resolution: < 0.1 mm features ◐ Post-curing required for optimal properties

Manufacturers & Alternatives

Primary Supplier: Axson Technologies (now part of Sartomer, a division of Arkema)1.
Direct Alternatives:
  • Smooth-On Task Series (e.g., Task 9).
  • Polytek Poly 74xx Series.
  • Huntsman RenShape PU.
Material Selection Note: For FDA/ISO 10993 compliance, specify medical-grade variants (e.g., Axson PX100 MED).

For exhaustive technical datasheets, consult Axson/Sartomer product documentation. Vacuum casting remains optimal for bridge manufacturing between prototyping and mass production, with PX100 balancing cost, speed, and fidelity.
Learn more about ABS type materials
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