CW680-1 is a filled low viscosity and two parts epoxy resin. It offers good electrical and mechanical properties after curing at room temperature. It has good fire resistance property and has gained UL (file No.E337879) and RoHS certification. It is widely used in transformers, AC capacitors, ignition coil, negative ion generator, aquarium water pumps, power modules, electronic controllers and other electronic components.

Features l        Low viscosity, good fluidity, excellent workmanship operation l        Excellent electrical and mechanical properties l        Crack resistance and low shrinkage l        Smooth bright surface and nice cohesion with shell l        UL94V-0 Grade. Technical specification

Model	Appearance	Density(23℃)	Viscosity (40℃)
CW680-1 A	Black viscous liquid	1.60±0.05g/ml	2500±500 mPa.s
CW680-1 B	Brown liquid	1.10±0.05g/ml	20±5 mPa.s

Application Method
Quantity part A and B as per mixing ratio 100:25 and stir homogeneously. A two-time or more embedment method is recommended for a smooth and bright surface. Thereafter, the embedded product is placed in the dry and dust-free environment. When room temperature is lower than 20℃ in winter, preheat part A to 40℃ for a better flow and performance.

Items	Condition	A/B
Mixing ratio	by weight	100:25
Pot life	25℃,100g	60±10 min
Curing condition	25℃	24 h

Properties after curing

Items	Condition	After curing
Hardness	Shore-D	75±5
Volume Resistivity	25℃	>1013 Ω·cm
Dissipation Factor	25℃,1MHz	<0.01
Water Absorption	25℃,24h	< 0.02%
Dielectric strength	25℃	>20 MV/m

Packing and Storage Part A and B are packed separately 25kg/barrel. It should be placed in shady, cool, dry and ventilated room. Part B should be sealed to avoid absorption of moisture. The storage period is 6 months.