Prime Impax 250 is a formulated High Impact Polystyrene that povides quality tough

ness, stiffness and impact strength. Prime Impax 250 is designed to meet a wide vari

ety of product applications and is one of the most versatile, inexpensive materials we

supply. It is our standard thermoforming grade of High Impact Polystyrene.

Applications:
Prime Impax 250 is FDA compliant and USP Class VI compliant. With its ease of proce

ssing, it provides trays with the rigidity and parallelism need for good sealing. It is abl

e to withstand Gamma Radiation and ETO sterilization.

Processing:
Since it is an amorphous thermoplastic material it is relatively easy to process in extru

sion and thermoforming. The mold shrink is .003 - .006 in./in. It can be formed on alu

minum, ceramic, fiberglass, epoxy and even wood tools.

Finishing:
Prime Impax 250 can be fabricated by drilling, routing, sawing, die cut and/or laser cut

ting. Mechanical fasteners may be used as well laaser cutting. We provide Prime Impax

250 in sheet or roll stock and are capable of holding extremely tight tolerances by eith

er square cutting or slitting.

Please contact your Primex Plastics representative for more information on finishing, fab

ricating, or the thermoforming process.

Colors, Textures and Capabilities:
Prime Impax 250 is available in natural and white. It is offered in thicknesses of .008 -.125

and widths of up to 53".with a M/M surface.

基本信息
特性	刚性，良好 高拉伸强度 抗撞击性，高 可加工性，良好 韧性良好 无定形的 中等硬度
机构评级	FDA 21 CFR 177.1640 USP 第VI类
外观	可用颜色
形式	片材
加工方法	挤出 热成型

物理性能	额定值	单位制	测试方法
比重	1.04	g/cm³	ASTM D792
熔流率（熔体流动速率） (200°C/5.0 kg)	2.5	g/10 min	ASTM D1238
收缩率 - 流动	0.30 到 0.60	%

机械性能	额定值	单位制	测试方法
抗张强度 (屈服)	20.0	MPa	ASTM D638
伸长率 (断裂)	70	%	ASTM D638
弯曲模量	1900	MPa	ASTM D790

冲击性能	额定值	单位制	测试方法
悬壁梁缺口冲击强度 (23°C)	110	J/m	ASTM D256

热性能	额定值	单位制	测试方法
载荷下热变形温度 (1.8 MPa, 未退火)	83.9	°C	ASTM D648
维卡软化温度	98.9	°C	ASTM D1525

可燃性	额定值		测试方法
UL 阻燃等级 1(0.991 mm)	HB		UL 94