Name: LE-9516/LH-9516 Transformer Epoxy Resin Outdoor CT/VT Electrical Insulation
Brand: Shanghai Wenyou Industry Co., Ltd.
SKU: LE-9516/LH-9516
Price: 2.30 USD
Availability: InStock

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LE-9516/LH-9516 Transformer Epoxy Resin Outdoor CT/VT Electrical Insulation

Electrical Insulation Epoxy Resin

LH-9516 Transformer Epoxy Resin

Outdoor CT Transformer Epoxy Resin

Place of Origin:

China

Brand Name:

WENYOU

Certification:

REACH/RoHS/UL/SGS/IOS

Model Number:

LE-9516/LH-9516

Document:

Outdoor Epoxy Resin 9516.pdf

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Product Details

Viscosity:

200-500

Process:

APG & Vacuum Casting

Keywords:

Electric Epoxy Resin

Thermal Decomposition:

＞320°C

Adhesion Strength:

Strong

Usage:

Electrical Insulation

Payment & Shipping Terms

Minimum Order Quantity

20KG

Price

2.3-2.85USD/KG

Packaging Details

iron barrels/drums

Delivery Time

within 10 days

Payment Terms

L/C,T/T

Supply Ability

50000BARELS/MONTH

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Product Description

LE-9516/LH-9516 Transformer Epoxy Resin | Outdoor CT/VT | Electrical Insulation

Product Attributes

Attribute	Value
Viscosity	200-500
Process	APG & Vacuum Casting
Keywords	electric epoxy resin
Thermal Decomposition	＞320°C
Adhesion Strength	Strong
Usage	Electrical insulation

Formulation

Component	Type	Amount
Epoxy resin	LE-9516	100pbw
Hardener	LH-9516	100pbw
Filler	Silica	350-400pbw
Color paste	LC-	3pbw

Performance

A two component saturated epoxy resin system without premixed filler, liquid at room temperature.

Suitable for both APG injection process and vacuum casting process
Excellent UV resistance
Excellent thermal and thermal shock resistance
Excellent environmental resistance
Excellent electromechanical performance

Application

Outdoor high-voltage electrical insulation parts such as: insulators, transformers and other insulation products.

Physical and Chemical Indicators

Resin LE-9516 is a modified saturated epoxy resin system. Curing agent LH-9516 is a modified weathering anhydride curing agent.

Resin LE-9516			Curing Agent LH-9516
Property	Unit	Standard	Property	Unit	Standard
Appearance	Visual	Transparent-yellow liquid	Appearance	Visual	Transparent-yellow liquid
Epoxy value	Eq/kg	4.0-4.5	Viscosity at 25℃	mPa.s	150-400
Viscosity at 25℃	mPa.s	500-1500	Density at 25℃	g/cm3	1.17-1.24
Density at 25℃	g/cm3	1.16-1.20	VP	Pa	About 0.5
VP at 25℃	Pa	<0.01	Flash point	℃	About 140
Flash point	℃	About 135

Process

Epoxy resin LE-9516, curing agent LH-9516 and a certain amount of filler can be mixed according to the following curing process after fully mixing under vacuum conditions:

Processing parameters	Automatic Pressure Gelation	Vacuum casting
Epoxy Resin/Hardener mixing temperature	40℃/1-2h	50-60℃/1-1.5h
Feeding method	Pressure(0.5-5bar)	Vacuum (casting pot)
Mold temperature	130-150℃	105℃/4-6h
Gelation time	10-50mins	80℃/4h+100℃/2h+120℃/2h
Post-curing	130-140℃×6-10h	130-140℃×6-10h

Gel Time

LE-9516:LH-9516=100:100

Temperature	Gel time
at 120℃	20-40mins
at 140℃	9-18mins
at 160℃	4-8mins

Mechanical and Physical Properties

Test system: Resin LE-9516 / curing agent LH-9516 / silica flour=100/100/400

Curing conditions: 120°C × 4hours +140°C × 8hours

Note: The following performance data are measured according to the national standard and are for user reference only. The specific application data should be determined according to the actual conditions of the user.

Properties	Typical results	Properties	Typical results
Tg(DSC)	60-80℃	Thermal decomposition temperature	>320℃
Tensile strength	60-80N/mm2	Water absorption rate (23°C × 10 days)	0.10-0.20 %by wt.
Flexural strength	100-130N/mm2	Water absorption rate (100°C × 60 minutes)	0.08-0.15 %by wt.
Compressive strength	140-190N/mm2	Surface resistivity	1014 Ω
Impact strength	8-16kJ/m2	Volume resistivity	1015 Ω.cm
Curing shrinkage	0.8-1.0%	Dielectric strength	31 kv/mm
Flame resistance (4mm)	HB level	Dielectric loss	0.02
Thermal conductivity	0.8-0.9W/mk

Key Features & Advantages

Outdoor Durability: Excellent UV, thermal shock, and weather resistance for long-term reliability.
High Dielectric Strength: 31kV/mm insulation ensures safe operation in high-voltage applications.
Thermal Stability: Withstands temperatures up to 320°C (thermal decomposition point).
Low Viscosity: Optimized flow (150-400 mPa*s at 25°C) for thorough component coverage.
Fast Curing: Gel times as short as 4-8 minutes at 160°C for efficient production cycles.

Applications

Encapsulation of outdoor CT/VT coils
Insulators for high-voltage transformers
APG injection-molded electrical components
Protective coatings for substation equipment

FAQ Section

Q: What curing methods are supported?

A: Compatible with APG injection (130-150°C) and vacuum casting (105-120°C).

Q: Is this resin suitable for indoor use?

A: Yes, but it's specifically optimized for outdoor durability (UV/weather resistance).

Q: What's the minimum order quantity?

A: 10KG with flexible drum packaging (20-1200KG options).

Q: Are custom formulations available?

A: Yes, technical parameters can be adjusted for specialized requirements.

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