Description of YE-9222/YH-9222

Two-part transformer epoxy curing system, liquid under ambient conditions, engineered for APG injection and vacuum casting. Ensures low post-cure contraction, stable part dimensions, superior processability, and excellent dielectric properties.

Specification

YE-9222 Resin is a modified BPA epoxy resin
Items	Unit	Standard
Appearance	Visual	Transparent viscous liquid
Epoxy value	Eq/kg	4.8-5.2
Viscosity (25℃)	mPa.s	3000-6000
Density (25℃)	g/cm³	1.15-1.20
Vapor pressure(25℃)	Pa	＜0.01
Flashing point	℃	Approx.135

YH-9222 Curing Agent is a liquid modified carboxylic anhydride curing agent
Items	Unit	Standard
Appearance	Visual	Pale yellow or slight yellow liquid
Viscosity (25℃)	mPa.s	400-800
Density (25℃)	g/cm³	1.17-1.24
Vapor pressure(25℃)	Pa	Approx.0.5
Flashing point	℃	Approx.140

Application

Medium and high voltage electrical insulation parts,such as:

10-24kv bushings,
contact tubes,
insulators
other related insulation parts.

Gel time

Temperature	Gel Time
At 120 ℃	11-19mins
At 140 ℃	4-6mins
At 160 ℃	Approx.2mins

Physical & Mechanical Properties

Test mode:

Mix. Ratio: YE-9222 Resin/YH9222 curing agent/filter: 100/100/400

Curing conditions: 80℃*2hours+140℃*8hours

Ps.: While the properties below meet national testing standards, they serve solely as a guide. Real-world functionality depends on operational parameters and requires verification by the end-user.

Properties	Typical value	Properties	Typical value
Tg(DSC)	80-100℃	Thermal conductivity	0.8-0.9W/mk
Tensile strength	60-85N/mm²	Thermal decomposition temperature	＞320℃
Flexural strength	100-130N/mm²	Water absorption	0.10-0.20%by wt.
Compressive strength	140-180N/mm²	Water absorption	0.08-0.15%by wt.
Impact strength	8-14kJ/m²	Surface resistivity	10⁴Q
Curing shrinkage	0.7-0.9%	Volume resistivity	10"Q.cm
Flammability(4mm)	HB degree	Dielectric strength	30kv/mm
Flammability(12mm)	V1 degree	Dielectric loss	0.02

Storage

Components (resin/hardener) must be kept dry in airtight containers at 6–35°C. 24-month shelf life (see label). Post-expiration processing necessitates retesting. Reclose partially used containers tightly.

Packing

Epoxy resin 20kg/pail or 220kg/pail

Curing agent 20kg/pail or 220kg/pail

First aid

Rinse affected eyes continuously with water for 15–20 minutes upon exposure. Immediate medical attention required. Do not rub eyes or apply medications without professional advice.

Treatment for skin contact:

Softly blot contaminants (avoid abrasive wiping).

Thoroughly wash area with water ≥15 minutes.

Seek urgent care for persistent redness/pain/blistering.

Other precautions:

Isolate contaminated garments.

Move to ventilated zones if inhaling fumes.

Preserve original chemical labels for healthcare providers.

Mandatory medical assessment after any exposure.

Our Services

1. Good knowledge on different market can meet special requirements.
2. Real manufacturer with our own factory located in Caoxian, Heze, China
3. Strong professional technical team ensure to produce the top quality products.
4. Special cost control system ensure to provide the most favorable price.