Epoxy resin 312A/B-8
A, Purpose and Explanation
Epoxy resin 312 ab - 8 is epoxy resin curved glue cured under the condition of normal temperature and low temperature , good flowing property, natural defoaming, yellow resistance, high transparency without ripples, bright surface, suitable for curing at room temperature or high temperature. Dedicated to the LED luminous characters, picture frames, handicrafts, glue, badges, high-grade resin words and the insulation of other electronic components , moistureproof, potting, confidential encapsulation,etc.
B,The properties before hardening
The main agent312A -8 Curing agent312B-8
Color: Colorless transparent Colorless transparent
Specific gravity: 1.15 0.96
Viscosity25℃: 2000-4000CPS 100MAX

C,Conditions of usage
1)Mixing ratio: A: B = 100:33(weight ratio)
2)Hardening conditions: 25 ℃×8H to 10 H or 55℃×1.5H (2 g)
3)Usable time: 25℃×40min (100g)

D,Application method
1.Working environment: The container of holding glue please keep clean, A and B part should be in accordance with the weight ratio, weigh accurately , mix fully along the container wall by clockwise and use after 3 to 5 minutes .
2.According to the operational time and dosage of mixing rubber, avoid wasting. When the temperature below 15 ℃, please put A glue to glue again after warm up to 30 ℃, easy to operate, (a glue will be thicken when low temperature ); Must be sealed lid after use, avoid product rejection caused by moisture absorption.
3.When the relative humidity is more than 85%, the curing surface easy to absorb moisture in the air, form a layer of white mist, so when the relative humidity is more than 85%, is not suitable for room temperature curing, s est to use the heat curing.

E,The properties after hardening
1）Hardness shore D <85
2）Withstand voltage KV/mm 22
3）Flexural strength Kg/mm2 28
4）Volume resistivity 　 Ohm3 1x10*15
5）Surface resistance Ohmm2 5X10*15
6）Thermal conductivity W/M.K 1.36
7）Induced electric loss 　　 1KHZ 0.42
8）Thermal deformation temperature ℃ 80
9）Moisture absorption % <0.15
10）Compressive strength 　 　 Kg/ mm2 8.4

The above performance data is typical data measured by the laboratory environment under the condition of the temperature of 25 ℃,the humidity of 70%. For customer's reference only.