C-EP 6841/6840 Technical Data Sheet

PRODUCT DESCRIPTION 产品描述

C-EP 6841/6840 is an optimally filled casting resin system with good impregnation capability for processing and curing at room temperatures or slightly elevated temperatures. It is suitable for atmospheric or vacuum casting. The product is featured with its very good thermal shock resistance, thermal endurance and flame retardance. It is suitable for the application such as voltage regulators, relays, resistor networks, iron core transformers, modules, proximity switches, etc. C-EP 6841/6840 是一种拥有良好的注入性能的极佳环氧树脂浇铸系统，它可在室温或略高的温度下固化并且适合于大气下或真空浇铸。固化后的产品具有极好的热冲击性能，耐热性能和阻燃性。适用于调压器，继电器，电阻网络，铁心变压器，模块，接近开关等。

PROPERTIES OF UNCURED MATERIAL 固化前材料性能

Properties

性能

Test Method

测试方法

Resin-A

环氧树脂-A

Hardener-B

固化剂-B

Mixed-A/B

混合物-A/B

Color/Appearance

颜色/外观

Visual

目测法

Green liquid

黑色液体

Clear yellowish

liquid 透明黄色液态

green

黑色

Specific Gravity

比重

ASTM D-792

1.62

0.98

1.53

Viscosity @ 25°C, cps 粘度（25°C）

ASTM D-2393

16,100

150

3,800

TYPICAL CURED PROPERTIES 固化后属性

Property 性能	Test Method 测试方法	value 数值
Hardness (Shore D) 硬度	DIN 53 505	80
Elongation at break at 25 ºC断裂延伸率, %	ISO 527T2/93	15
Tensile strength at 25 ºC拉伸强度, MPa	ISO 527T2/93	15
Glass transition temperature 玻璃化转变温度, Tg, ºC	DMA	20
Thermal Conductivity 导热率, W/M-K	ISO 8894/90	0.502
Coefficient of linear thermal expansion 线性热膨胀系数, CTE，ppm/K	DIN 53 752/80	41
Max. service temperature 最大工作温度, ºC		130
Water absorption, one day at 24 ºC, % weight吸水率,1天	ISO 63/80	0.25
Dielectric strength, kV/mm	ASTM D149	24
Flammability	UL 94	V0

CURING SCHEDULE 固化步骤

Resin/Hardener Ratio (by weight) 树脂与固化剂重量比	100 / 12
Resin/Hardener Ratio (by volume) 树脂与固化剂体积比	100 / 20.4
Working life, 25°C, minutes 操作时间，25°C，分钟	40

CURING TIME TABLE 固化进度表

Temperature 温度	Minimum Cure Time 最少固化时间
25 ºC (77ºF)	24 hours
60 ºC (158ºF)	6 hours

SHELF METHOD 保存方法

Store at 15 - 30 ºC in a dry place. After each use, tightly reseal. 每次用完后，应密封保存于15 - 30 ºC的干燥地方。

SHELF LIFE储藏寿命

Provided this material is stored under the recommended storage conditions in their original containers, it will remain in useable condition for one year from date of shipping. 采用原始包装，保存于15 - 30 ºC的干燥地方，保质期为一年（从发货之日算起）。