EST. 2001 · High-Tech Enterprise · SRDI Certified

Engineering Molecules
for the Extreme Future

GRT Composites specializes in the R&D, production and technical service of specialty resins, adhesives and composite products — from core components inside nuclear reactors to high-frequency substrates powering AI computing, our proprietary molecular-level material solutions serve national advanced equipment and frontier technology industries.

0
Years of Materials Expertise
0
Nuclear Units in Service
0
Heat Resistance Limit
ISODual
9001 / 14001 Certified
TRUSTED BY / Clients & Partners CGN · SNP Shanghai Electric Generator Works Harbin Electric Machinery Dongfang Electric Machinery Chinese Academy of Sciences East China University of Sci. & Tech.
01 ABOUT US

Two Decades of Specialty Materials
Complete Capability from Molecule to Equipment

Founded in 2001 and guided by the philosophy of "Integrity, Quality, Service, Innovation", GRT Composites is a National High-Tech Enterprise and SRDI (Specialized, Refined, Distinctive, Innovative) certified company dedicated to the R&D, production, sales and technical service of specialty resins, adhesives and composite products.

Zhuhai Manufacturing Base

Large-scale production base in Gaolan Port Chemical Industrial Park, holding Class-A and Class-C chemical production safety licenses for high-volume manufacturing and delivery.

Shanghai R&D Center

R&D, sales and technical support teams in Fengxian District, delivering customized material solutions and full-cycle technical service for customer needs.

Industry–Academia Partnership

Joint R&D center and internship base with the School of Materials Science and Engineering at East China University of Science and Technology, driving innovation through collaboration.

02 PRODUCTS & APPLICATIONS

Five Product Series.

Starting from molecular design, covering the full product spectrum from resin synthesis and adhesive formulations to finished composite products, for demanding applications in nuclear power, electrical equipment, telecommunications and aerospace.

S-01

High-Temperature Resins

Silicon-carbon resin / organosilicon systems, sustaining long-term mechanical performance up to 500℃, for radome, thermal-protection and ablation-resistant structures.

500℃RTM · Compression
S-02

Low-Dielectric Materials

Hydrocarbon resins / PPO / silicon-containing arylacetylene systems with ultra-low Dk & Df, for AI computing and 5G high-frequency high-speed substrates.

M8 Substrate5G · AI
S-03

Epoxy Adhesives

Structural adhesives, potting and impregnation systems with high bond strength and aging resistance, supporting electrical insulation and structural bonding.

150–200℃Insulation Potting
S-04

Modified Rubber Adhesives

Phenolic-nitrile / nitrile rubber systems, resistant to thermal cycling shock, suitable for dissimilar-material and carbon-fiber composite bonding.

-4~356℉CFRP Bonding
S-05

Composite Products

Coil bobbins, rod-position skeletons, filament-wound tubes and custom insulation parts, via compression molding, filament winding and hand lay-up processes.

230–500℃Customizable
03 APPLICATIONS BY INDUSTRY

Solutions for the Most Demanding Environments

Materials in extreme service — high temperature, radiation, high frequency, vibration, humidity. GRT delivers reliable material solutions for every industry scenario through targeted formulations and customized processes.

IND-01

Nuclear Power

Coil bobbins for control rod drive mechanisms (CRDM), ceramic sealing compounds and casting materials, withstanding long-term heat, humidity, radiation and vibration.

CRDM BobbinsCeramic PartsRadiation Resistant
IND-02

Electrical Machinery

Localized production of epoxy adhesives and potting compounds for 300MW–1000MW generator units; insulation materials for high-speed, linear and traction motors and rail transit.

VPI ImpregnationLarge-Volume PottingMagnet Bonding
IND-03

AI Computing & Telecom

High-frequency high-speed copper-clad laminate materials for AI accelerator cards and 5G base stations, with ultra-low dielectric constant and loss for signal integrity.

M8-Grade CCLUltra-Low DfHigh Tg
IND-04

Aerospace Thermal Protection

High-temperature wave-transparent, thermal-protection and ablation-resistant composites, 500℃-class resin systems for high-speed flight vehicles and hot structures.

Wave TransparencyThermal ProtectionAblation Resistant
IND-05

Rail Transit

Traction motor insulation and bonding materials, withstanding vibration and thermal cycling, supporting long-term reliable operation of high-speed rail and urban transit.

Traction MotorsInsulation BondingVibration Resistant
IND-06

Defense Electronics

Hydrocarbon resins as military high-frequency wave-transparent and insulation materials, type-approved and supplied in volume, meeting stringent military standards.

HF TransparencyType ApprovedVolume Supply
04 TECHNOLOGY

From Molecular Design to Volume Delivery

Our Technology
STEP 01

Molecular Design

Goal-oriented structure design & performance prediction

STEP 02

Pilot Scale-Up

Process engineering from lab to volume production

STEP 03

Synthesis & Characterization

Full-chain validation of structure-property relationships

STEP 04

Formulation Design

Application-specific customized formulations

STEP 05

Testing Capability

Thermal, electrical, mechanical & dielectric testing

05 SUCCESS STORIES

Powering the Localization of Critical Equipment

All Stories
NUCLEAR POWER

CRDM Coil Bobbins for Nuclear Reactors

Developing and manufacturing core insulation and structural components for CRDMs at SNPP and CGN. Our proprietary integrally compression-molded 230℃-class silicone coil bobbins have served in 9 nuclear power units since 2017; the new-generation 440℃-class assembly has completed development, and 250℃-class ceramic bobbins are now in supply.

9
Nuclear Units in Service
230℃
Integral Molding
440℃
Next-Gen Temp Index
INSULATION · ELECTRICAL MACHINERY

Localizing Large-Generator Insulation & Frontier Equipment

Since 2001, working with Shanghai Generator Works and Harbin Electric Machinery to localize epoxy adhesives and potting compounds for 300MW/600MW/1000MW generator units, qualified supplier to all three major OEMs. GRT_1839 epoxy potting compound is applied in CAS's world-first electromagnetic-drive ultra-high-speed ground test facility — the "Electromagnetic Sled".

3
Qualified OEM Supplier
1000MW
Localized Unit Coverage
World First
Mag-Sled Potting
06 QUALIFICATIONS

Authoritative Certifications

ISO 9001

Quality Management System

Since 2002

ISO 14001

Environmental Management System

Since 2023

National High-Tech Enterprise

State-level Certification

In Force

SRDI Enterprise

Specialized · Refined · Distinctive · Innovative

Government Certified

Class-A/C Licenses

Chemical Production Safety Permits

Zhuhai Base

Extreme service conditions? Let's solve them at the molecular level.

From standard products to customized development, GRT's technical team responds with professional material solutions — fast.

Contact Our Team