Superior Comprehensive Properties Vacuum Casting PA like

Short Description:

To be used by vacuum casting in silicone molds for making prototype parts and mock-ups with mechanical properties similar to thermoplastics like polystyrene and filled ABS.
Good impact and flexural resistance
Fast demolding
Good impact and flexural resistance
Available in two pot lifes (4 and 8 minutes)
High thermal resistance
Can be easily colored with CP pigments)

Product Detail

Product Tags

PHYSICAL PROPERTIES
    PX 226PART A PX 226 - PX 226/L PART B  
Composition   ISOCYANATE POLYOL MIXED
Mix ratio by weight   100 50  
Aspect   liquid liquid liquid
Color   Pale yellow colorless white
Viscosity at 77°F(25°C)       (mPa.s) BROOKFIELD LVT 175 700 2,000(1)
Density at 77°F(25°C)Density of cured product at 73°F(23°C) ISO 1675 : 1985ISO 2781 : 1996 1.22- 1.10- 1.20
Pot life at 77°F(25°C)on 500 g   (minutes) (Gel Timer TECAM) PX 226  PART B PX 226/L PART B     47.5

Processing Conditions

Heat both parts (isocyanate and polyol) at 73°F(23°C) in case of storage at low temperature.

Important : Shake vigorously part A before each weighing.

Weigh both parts.

After degassing for 10 minutes under vacuum mix for

1 minute with PX 226-226

2 minutes with PX 226-226/L

Cast under vacuum in a silicone mold, previously heated at 158°F(70°C).

Demold after 25 - 60 minutes minimum at 158°F(70°C) (allow the part to cool down before demolding).

Handling Precautions

Normal health and safety precautions should be observed when handling these products :

Ensure good ventilation

Wear gloves, safety glasses and impervious clothing.

For further information, please consult the material safety data sheet.

Flexural modulus of elasticity ISO 178 :2001 Psi/(MPa) 363,000/(2,500)
Flexural strength ISO 178 :2001 Psi/(MPa) 15,000/(105)
Tensile strength ISO 527 :1993 Psi/(MPa) 10,000/(70)
Elongation at break in tension ISO 527 :1993 % 15
Charpy impact strength ISO 179/1eU :1994 Ft-lbf/in2/(kJ/m2) 33/(70)
Hardness ISO 868 :2003 Shore D1 82
Glass transition temperature(2) ISO 11359 : 2002 °F/(°C) 221/(105)
Heat deflection temperature(2) ISO 75Ae :2004 °F/(°C) 198/(92)
Linear shrinkage(2) - % 0.3
Maximal casting thickness - In/(mm) 5
Demolding time at 158°F/(70°C) PX 226  PART B PX 226/L PART B minutes 25, 60

Storage conditions

Shelf life is 6 months for part a and 12 months for part b in a dry place and in original unopened containers at a temperature between 59 and 77°f/(15 and 25° c). Any opened can must be tightly closed under dry nitrogen.


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