Ⅰ. Component     A: Epoxy Resin , Filler, Additive     B: Acid Anhydride, Accelerator

Ⅱ. Characteristics

a)        Excellent workability

b)       Excellent penetrating

c)        The exothermic peak is relatively low, high reliability of encapsulated products

d)       Flame resistance (UL-94, V-0)

e)        Excellent electronic properties

f)        Environmental-friendly

Ⅲ. USE

Casting for Flyback Transformer and other electronic parts

Ⅳ. Packing

A: 33kg

B: 22kg 、220kg

Ⅴ. Transportation

This product does not belong to dangerous article . It can be transported in the way as common chemical do .

Ⅵ. Storage

a)        Completely packed, preferably between 15℃ and 25℃

b)       Free from direct sunlight

c)        Free from humidity

d)       Free from fire

Ⅶ.Product property

Items	Standard data			Testing standard
Before cure
Appearance	A	White liquid		Visual estimation
	B	Light yellow liquid
Viscosity （40℃，mPa·s）	A	（1.0~1.5）×104		GB-3/T2794
	B	15~23
	A+B	≤ 550
Specific gravity （25℃，g/ml）	A	1.70~1.75		GB-3/T4472
	B	1.18~1.21
	A+B	1.58~1.63
Mixing ratio(WT%)		A：B=100：30		/
Pot life(40℃，h)		>3.5		/
Gel time（80℃，min）		100~120		/
After cure
Hardness（25℃，D）			>87	Shore-D
Glass transition（℃）			108-120	DSC
Flexural strength（25℃，N/MM2）			>74	/
Impact strength（KJ/cm2）			>2.5	GB-3/T1043
Coefficient of liner thermal expansion（℃-1）(below Tg)			<5.0×10-5	GB-3/1036-70
Thermal conductivity（25℃，W/Mk）			>0.48	GB-33399-82
Volume resistivity（25℃，Ω·cm）			>3.9×1015	GB-3/T1410
Surface resistivity（25℃，Ω）			>5.8×1014
Dielectric constant（25℃，10KHz）			3.8±0.1	GB-3/T1409
Dissipation factor（25℃，10KHz）			<0.008
Water absorption（23℃，24h, %）			<0.15	GB-3/T1304
Breakdown voltage（25℃，KV/mm）			>25	GB-3/T1048
Flammability (UL-94, 6mm )			V-0	GB-3/T4069

Ⅷ. Potting Condition

Predegassing		Temperature（℃）	Vacuum （τ）	Time （h）
	A	65±5	<2	4~12
	B	35±5	<2	4~12
Potting	Coil preheating	Temperature （℃）	105±5
		Time （h）	>1.5
	Mixing temperature（℃）	40~45
	Prevacuum pressure	Vacuum （τ）	<2
	Potting	Vacuum（τ）	<5
	Post vacuum pressure	Vacuum （τ）	<5
		Time （s）	>20
Curing	75℃/2.5h+75~110℃/0.5h+110℃/2.5h

 

Ⅸ. Cautions

1. Cautions in use

a)        Part A should be agitated before use to disperse sufficiently the settled filler.

b)       Part B may be crystallized when it is stored at low temperature, in this case, heat it to 40-50℃ until it is completely dissolved.

c)        Weigh both A and B respectively, into specified amounts and mix them uniformly.

 

2. Cautions in handling

a)        Work place should provide a ventilator for performing sufficient ventilation

b)       Protective garments, gloves, goggles are necessary to workers to avoid direct contact of the materials.

c)        In the event of the agent contacting the skin wash it off immediately with warm water and alkali-free soap. Medical treatment is needed if skin is seriously imitated.

d)       Avoid breathing vapors, which can cause respiratory damage.

 

3.Cautions in Storage

a)        Store it at the cool and dark place (preferably between 15℃ and 25℃)

b)       Seal the products to avoid mixing of water into the products.

c)        Keep to the first-in first-out

d)       Once the container is opened, the material should be used as fast as possible, to prevent properties from deterioration by foreign substance and moisture absorption