Superior Comprehensive Properties Vacuum Casting PA like

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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