| 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.
