Description of Transformers Epoxy Resin Hardener YE-9112/YH-9112
A dual-component epoxy hardener for transformers, liquid at room temperature, compatible with APG (Atmospheric Pressure Gelation) injection and vacuum casting. Offers minimal shrinkage during curing, exceptional dimensional stability in molded components, smooth processing characteristics, and premium electrical performance.
Specification
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YE-9112 Resin is a modified BPA epoxy resin |
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Items |
Unit |
Standard |
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Appearance |
Visual |
Transparent viscous liquid |
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Epoxy value |
Eq/kg |
4.8-5.2 |
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Viscosity (25℃) |
mPa.s |
3000-5000 |
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Density (25℃) |
g/cm³ |
1.15-1.20 |
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Vapor pressure(25℃) |
Pa |
＜0.01 |
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Flashing point |
℃ |
Approx.135 |
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YH-9112 Curing Agent is a liquid modified carboxylic anhydride curing agent |
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Items |
Unit |
Standard |
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Appearance |
Visual |
Pale yellow or slight yellow liquid |
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Viscosity (25℃) |
mPa.s |
100-300 |
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Density (25℃) |
g/cm³ |
1.17-1.24 |
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Vapor pressure(25℃) |
Pa |
Approx.0.5 |
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Flashing point |
℃ |
Approx.140 |
Application
Medium and high voltage electrical insulation parts, such as: 10-24kv bushings, contact tubes, insulators and other related insulation parts.
Gel time
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Temperature |
Gel Time |
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At 120 ℃ |
11-19mins |
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At 140 ℃ |
4-6mins |
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At 160 ℃ |
Approx.2mins |
Physical & Mechanical Properties
Test mode:
Mix. Ratio: YE-9112 Resin/YH9112 curing agent/filter: 100/100/400
Curing conditions: 80℃*2hours+140℃*8hours
Ps.: Tested per national standards, the listed properties are provided as reference data. Final performance must be confirmed based on the user's unique application environment.
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Properties |
Typical value |
Properties |
Typical value |
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Tg(DSC) |
80-100℃ |
Thermal conductivity |
0.8-0.9W/mk |
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Tensile strength |
60-85N/mm² |
Thermal decomposition temperature |
＞320℃ |
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Flexural strength |
100-130N/mm² |
Water absorption |
0.10-0.20%by wt. |
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Compressive strength |
140-180N/mm² |
Water absorption |
0.08-0.15%by wt. |
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Impact strength |
8-14kJ/m² |
Surface resistivity |
10⁴Q |
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Curing shrinkage |
0.7-0.9% |
Volume resistivity |
10"Q.cm |
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Flammability |
HB degree |
Dielectric strength |
30kv/mm |
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Flammability |
V1 degree |
Dielectric loss |
0.02 |
Storage
Store resin/hardener in sealed containers at 6–35°C with low humidity. Shelf life: 2 years (as labeled). Post-expiry use requires revalidation. Reseal containers promptly after partial use.
Packing
Epoxy resin 20kg/pail or 220kg/pail
Curing agent 20kg/pail or 220kg/pail
First aid
Immediately flush eyes with clean water for 15–20 minutes if contaminated. Seek medical care; avoid eye rubbing or self-administered drops.
Treatment for skin contact:
Gently wipe residue with clean cloth (no scrubbing).
Rinse skin under running water ≥15 minutes.
Consult a doctor if irritation/persistent symptoms develop.
Other precautions:
Seal contaminated clothing.
Relocate to fresh air if vapors cause discomfort.
Retain original packaging for medical reference.
All exposure incidents require clinical follow-up.
FAQ
Q: 1. How can I place an order?
A: You can contact any of our sales person for an order. Please provide the details of your requirements as clear as possible. So we can send you the offer at the first time.
Q: 2. When can I get the price?
A: Usually we quote within 24 hours after we get your inquiry.
Q: 3. Can you do the design for us?
A: Yes. We have a professional team having rich experience in gift box design and manufacturing.
Just tell us your ideas and we will help to carry out your ideas into perfect boxes.
Q: 4. How long can I expect to get the sample?
A: After you pay the sample charge and send us confirmed files, the samples will be ready for delivery in 1-3 days. The samples will be sent to you via express and arrive in 3-5 days.
Q: 5. What about the lead time for mass production?
A: Honestly, it depends on the order quantity and the season you place the order.
Alway 25-28days based on general order .
Q: 6. What is your terms of delivery?
A: We accept EXW, FOB, CFR, CIF, etc. You can choose the one which is the most convenient or cost effective for you.
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