8613385309708
jessica.zhang@yonghuicomposite.com
enEnglish
Category

Our Factory

 

 

Heze Yonghui Composite Materials Co., Ltd. specializes in the production of high-performance, specialty amine-based chemical products such as MDA, DDM, MOCA, PACM, MACM, MDA-60, etc.

 

 
 
Why Choose Us

 

MODERN LABORATORIES

Our R&D center is equipped with advanced analytical tools (GC-MS, HPLC) and pilot-scale equipment, enabling formulation optimization for applications such as carbon fiber composites, oil pipeline coatings, and electronic potting adhesives.

TECHNICAL PARTNERSHIPS

Long-term collaborations with top universities drive innovation. We have secured multiple patents in liquid DDM derivatives and high-temperature curing agents for PI/PEI insulating lacquers.

CERTIFICATIONS

ISO 9001/14001 certifications and REACH compliance reflect our commitment to quality. Our R&D team, consisting of over 10 members (30% with PhD or Master’s degrees), ensures continuous innovation.

 

Electrical Insulating Epoxy Resin

 

Electronical Epoxy Resin

MTHPA is a new material for electronical & mechanical products and widely used in potting, casting, winding, and bonding of electronic components, automobile parts, transformers, high voltage capacitors, mutual inductors, and the impregnation of electronic components, resistors, hybrid integrated circuits. Moreover, it is used in fiberglass reinforced plastic application, for filament wound products
( FRP pressure vessels, FRP rebars, irrigation pipes, pipelines for oilfield, water filter boxes), insulative bushing, insulated paint and so on.

 

 

Specification

 

 

YE-9111 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

8000-14000

Density (25℃)

g/cm³

1.15-1.20

Vapor pressure(25℃)

Pa

＜0.01

Flashing point

℃

Approx.135

 

YH-9111 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

100-300

Density (25℃)

g/cm³

1.17-1.24

Vapor pressure(25℃)

Pa

Approx.0.5

Flashing point

℃

Approx.140

 

Physical & Mechanical Properties

Test mode:

Mix. Ratio: YE-9111 Resin/YH9111 curing agent/filter: 100/100/400

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

Ps.: The properties outlined below have been evaluated in compliance with national standards and are intended for informational purposes only. End-users must validate actual performance characteristics under their specific operating conditions.

Properties

Typical value

Properties

Typical value

Tg(DSC)

90-110℃

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

 

 
 
Properties for Circuit Protection
01.

Excellent electrical insulation:

These resins have high dielectric strength, ensuring reliable insulation and preventing short circuits or electrical failures.

02.

Moisture resistance:

They create a waterproof barrier, protecting sensitive components from moisture and humidity, which can cause corrosion or malfunction.

03.

Thermal stability:

Potting epoxy resins can withstand a wide range of temperatures without degrading, making them suitable for use in harsh environments.

04.

Mechanical protection:

They provide a rigid encapsulation that shields delicate circuitry from physical impacts, vibrations, and other mechanical stresses.

 

 
Types of Electronical Epoxy Resin
 
01/

Rigid potting resins: These resins cure to form a hard, rigid encapsulation, offering excellent mechanical protection for components and circuits.

02/

Flexible potting resins: These resins maintain a degree of flexibility after curing, making them suitable for applications where some movement or vibration is expected.

03/

Thermally conductive potting resins: These resins have enhanced thermal conductivity, allowing for efficient heat dissipation from electronic components, preventing overheating.

04/

Optically clear potting resins: These transparent resins are used for encapsulating light-emitting components or sensors, allowing light to pass through without interference.

 

Things to note
 

1. The operating environment should be ventilated and should be kept away from fire. Closely sealed after use.
2. Avoid eye contact, in case of contact, wash with plenty of water and get medical attention immediately.
3. If contact skin, wrap it with a clean cloth or paper, and wash it with water and soap.
4. Keep away from children.
5. Please take a trial before application to avoid usage mistakes.

Electrical Insulating Epoxy Resin

Storage And Shelf Life

 

Electrical Insulating Epoxy Resin

1. Store at the temperature of 25°C or cool and dry place. Avoid sunlight, high temperatures, or a high-humidity environment.
2. Use up as soon as possible when opened. It is strictly forbidden to be exposed to the air for a long time after it is opened to avoid affecting the quality of the products. The shelf life is 12 months at a room temperature of 25°C.

 

Our Certificate
 
 
productcate-1-1
productcate-1-1
productcate-1-1
productcate-1-1
productcate-1-1

 

 

FAQ

 

 

Q: ls OEM accepted?

A: OEM order is warmly welcomed.

Q: OEM order is warmly welcomed.

A: We offered packing from 10g small bottle to 1000kgs barrel.

Q: What kind of shipping support?

A: We support all kinds of shipping, by air, by road, by truck, or by sea.

Q: What do you do to prevent leakage?

A: For mass order, we will make pallet or wood crate for each shipment, to make sure as less as moving during the transportation. To make sure that no too much heavy pressure on the top of the resin box, then there will be no leakage.

As one of the leading electronical epoxy resin manufacturers in China, we warmly welcome you to wholesale high-grade electronical epoxy resin for sale here from our factory. All chemicals are with high quality and competitive price.

Casting Epoxy Resin, Electrical Epoxy Resin, Transformers Epoxy Resin Hardener
Product Recommended
Send Inquiry
Contact us if have any question

You can contact us by phone, email, or the online form below. Our relevant personnel in charge will reply to you as soon as possible.

Contact now!