Premix Premi-Glas® 2550® CR-SX Fiberglass Reinforced Thermoset SMC

Premi-Glas 2550® CR-SX is an advanced fiberglass reinforced thermoset sheet molding compound for electrical, flame retardant and HVAC applications where stringent flame spread and smoke generation criteria are required.

Key features and benefits are:

• Non-Halogen FR technology for regulatory compliance
• Meets Steiner Tunnel < 25 Flame spread index and < 50 Smoke index
• Required in some instances where > 10 square feet of composite is present
• Suitable for outdoor use in applications involving UV exposure and water immersion in accordance with UL746C (f1), file E42524
• Designed for compression molding in matched metal die molds.

Information provided by Premix.

物理性能	额定值 (公制)	额定值 (英制)	测试方法
比重	g/cc	g/cc
线性成型收缩率	cm/cm	in/in	Polymerization Shrinkage

机械性能	额定值 (公制)	额定值 (英制)	测试方法
抗张强度	MPa	psi	ASTM D638
拉伸模量	GPa	ksi	ASTM D638
弯曲强度	MPa	psi	ASTM D790
弯曲模量	GPa	ksi	ASTM D790
悬壁梁缺口冲击强度	J/cm	ft-lb/in	ASTM D256
悬壁梁无缺口冲击强度	J/cm	ft-lb/in	ASTM D4812

热性能	额定值 (公制)	额定值 (英制)	测试方法
UL RTI	°C	°F	UL 746C
UL RTI，机械冲击	°C	°F	UL 746C
UL RTI，机械无冲击	°C	°F	UL 746C
可燃性(UL94)	@Thickness 1.50 mm	@Thickness 0.0591 in
	@Thickness 1.50 mm	@Thickness 0.0591 in
Flame Spread Index			UL723 Steiner Tunnel

加工性能	额定值 (公制)	额定值 (英制)	测试方法
加工温度	°C	°F	Compression Molding
Clamp Pressure	MPa	psi	Molding Pressure

材料描述		测试方法
Smoke Developed Index	40	UL723 Steiner Tunnel