Good Machinability Self-lubricating Properties Vacuum Casting POM

			PART APX 245	PART B      PX 245 – 245/L	MIXING
Composition			ISOCYANATE	POLYOL
Mixing ratio by weight			100	40
Aspect			liquid	liquid	liquid
Colour	PX 245/BPX 245/LB		grey	bluishcolourless	off-white
Viscosity at 25°C               (mPa.s)		BROOKFIELD LVT	800	1,000	2,200 (2)
Specific gravity at 25°CSpecific gravity at 23°C		ISO 1675 :1985ISO 2781 :1996	1.34-	1.10-	-1.22
Pot life at 25°C on 140g    (min.)		PX 245PX 245/L			4 8

Vacuum Casting Processing Conditions • Heat both parts (isocyanate and polyol) at 23°C in case of storage at low temperature. • Important : Shake vigorously part A before each weighing. • Weigh the both parts. • After degasing for 10 minutes under vacuum mix for 1 minute with PX 245 2 minutes with PX 245/L • Cast under vacuum in a silicone mold, previously heated at 70°C. • Demould after 30 minutes minimum at 70°C (allow the part to cool down before demoulding). Handling 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 product safety data sheet.

Flexural modulus of elasticity		ISO 178 :2001	MPa	4,500
Flexural strength		ISO 178 :2001	MPa	150
Tensile strength		ISO 527 :1993	MPa	85
Elongation at break in tension		ISO 527 :1993	%	3
Charpy impact strength		ISO 179/1eU :1994	kJ/m2	30
Hardness	- at 23°C - at 80°C	ISO 868 :2003	Shore D1	85 80

Glass transition temperature (1)	ISO 11359 : 2002	°C	95
Heat deflection temperature (1)	ISO 75Ae :2004	°C	92
Linear shrinkage (1)		mm/m	2
Maximal casting thickness		mm	5
Demoulding time at 70°C	PX 245 PX 245/L	min.	45 60