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Anhydride Type Epoxy Resin Curing Agent, Low Viscosity Heat Resistant Epoxy Hardener for Electronic Potting & Insulating Coatings buy - large image1

Anhydride Type Epoxy Resin Curing Agent, Low Viscosity Heat Resistant Epoxy Hardener for Electronic Potting & Insulating Coatings buy - image1

Anhydride Type Epoxy Resin Curing Agent, Low Viscosity Heat Resistant Epoxy Hardener for Electronic Potting & Insulating Coatings buy - image2

Anhydride Type Epoxy Resin Curing Agent, Low Viscosity Heat Resistant Epoxy Hardener for Electronic Potting & Insulating Coatings buy - image3

Anhydride Type Epoxy Resin Curing Agent, Low Viscosity Heat Resistant Epoxy Hardener for Electronic Potting & Insulating Coatings buy - image4

Anhydride Type Epoxy Resin Curing Agent, Low Viscosity Heat Resistant Epoxy Hardener for Electronic Potting & Insulating Coatings

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CAS No.:

19438-64-3

Grade:

Industrial Grade

Content:

99%

Port:

天津港

Packaging:

220kg/Iron Drum

Price valid (until):

2026-08-25

Contact Supplier

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Guangzhou Shenhong Chemical Co., Ltd.

Company Type:

Trader

Location:

China

Qualification:

Main Products:

melamine,Liquid Sorbitol,polyvinyl alcohol

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Product Description
Seller Information
Inquiry History

Description

Product Detail

1. Product Overview

This product is Methyl Tetrahydrophthalic Anhydride (MTHPA), a kind of acid anhydride epoxy resin curing agent, light yellow transparent low-viscosity liquid. It features long pot life, low curing shrinkage, excellent high-temperature resistance, superior electrical insulation performance and stable mechanical strength after curing. Widely applied in electronic component potting, transformer encapsulation, PCB insulation coating, carbon fiber composite materials, high-temperature resistant epoxy floor and anti-corrosion casting systems.

Our factory strictly implements industrial production standards, each batch is equipped with complete COA test report, MSDS safety data sheet, support free sample testing, bulk wholesale export for Middle East, Turkey and Southeast Asian markets.

Items	Specifications
Product Name	MTHPA Anhydride Epoxy Curing Agent
Appearance	Light Yellow Transparent Liquid
Purity	≥99.0%
Viscosity (25℃)	50–80 mPa·s
Freezing Point	≤-15℃
Mixing Ratio with Epoxy Resin	Resin:Curing Agent = 100:80~90
Heat Distortion Temperature	≥125℃
Dielectric Strength	≥22 kV/mm

3. Core Advantages

Long operable time, convenient for large-area pouring and construction;
Low volumetric shrinkage after curing, no cracking, high dimensional stability;
Outstanding insulation and arc resistance, ideal for electrical & electronic insulation parts;
Good compatibility with bisphenol A epoxy resin, stable curing reaction;
Low volatility, low odor, meet international GHS transportation standards.

4. Main Application Fields

Electronic industry: Voltage transformer, inductor, circuit board insulation potting;
Composite materials: Carbon fiber, glass fiber epoxy bonding and molding;
Building materials: High temperature resistant epoxy floor, anti-corrosion coating;
Casting industry: High precision epoxy casting parts, insulation encapsulation parts.

5. Packaging & Storage

Packing: 220kg iron drum
Storage: Sealed and stored in cool, dry and ventilated warehouse, avoid direct sunlight and high temperature environment; shelf life 12 months under normal conditions.

6. After-sales Support

We provide professional formula dosage guidance, export customs documents support, long-term stable supply and competitive factory direct price. Welcome global importers, chemical distributors and manufacturers to consult for quotation.

ECHEMI Editorial Reference

Methyl tetrahydrophthalic anhydride is a light yellow transparent oily liquid. It is an important intermediate in electronic information materials, medicine, pesticides, resins, and defense industries. Also It can be used in coatings, plasticizers, pesticides and other industries.

Basic Info

Product Name:

Methyl tetrahydrophthalic anhydride

Other Name:

JACS-19438-64-3;Methyltetrahydro Phthalic Anhydride (Mixture of 3- and 4- Isomers);Methyl tetrahydrophthalic anhydride;Methyl tetrahydropht;3a-Methyl-5,6-dihydro-4H-isobenzofuran-1,3-dione;5-Methyl-7,7a-dihydroisobenzofuran-1,3(3aH,6H)-dione;1,3-Isobenzofurandione, 3a,4,5,7a-tetrahydro-6-Methyl-;MTHPA,Tetrahydromethyl-1,3-isobenzofurandione

CAS No.:

19438-64-3

Molecular Formula:

C9H10O3

InChIKeys:

MWSKJDNQKGCKPA-UHFFFAOYSA-N

Molecular Weight:

166.17

Exact Mass:

166.17

EC Number:

234-290-7;251-823-9

DSSTox ID:

DTXSID5058692

HScode:

2932990090

Categories:

Antioxidants

Characteristics

PSA:

43.37000

XLogP3:

0.57

Density:

1+-.0.06 g/cm3(Predicted)

Boiling Point:

308.9±41.0 °C(Predicted)

Flash Point:

142.9±24.8 °C

Refractive Index:

1.508

Critical Temperature & Pressure:

-20°C, sealed storage, away from moisture

Hazard Identification

Classification of the substance or mixture

no data available

GHS label elements, including precautionary statements

Precautionary statement(s)
Pictogram(s)	no data available
Signal word	no data available
Hazard statement(s)	no data available
Prevention	no data available
Response	no data available
Storage	no data available
Disposal	no data available

Other hazards which do not result in classification

no data available

Handling and Storage

Precautions for safe handling

Handling in a well ventilated place. Wear suitable protective clothing. Avoid contact with skin and eyes. Avoid formation of dust and aerosols. Use non-sparking tools. Prevent fire caused by electrostatic discharge steam.

Conditions for safe storage, including any incompatibilities

Store the container tightly closed in a dry, cool and well-ventilated place. Store apart from foodstuff containers or incompatible materials.

See More Methyl tetrahydrophthalic anhydride Safety Data Sheet 

Seller Information

Business Type:
Trader

Main Products:
melamine,Liquid Sorbitol,polyvinyl alcohol

Location:
Room A222, No. 128 Puxing Road, Tianhe District, Guangzhou

Year of Establishment:
2021

Inquiry History