Nuclear Power
Insulation materials for nuclear reactor Control Rod Drive Mechanisms (CRDM), withstanding long-term extreme environments of high temperature, humidity, radiation and vibration.
Centered on molecular design, our complete product portfolio covers specialty resins, adhesives and composite products — delivered by application industry, supporting both standard procurement and customized development.
Excellent thermal stability with retained mechanical properties at elevated temperatures, plus outstanding corrosion resistance and impact resistance. These resins withstand extreme high-temperature conditions and are suitable for composite manufacturing. At the core are self-synthesized one-component, solvent-free silicon-carbon / silicone resin systems, supporting applications up to the 500℃ class.
| Grade | Product Name | Features & Applications |
|---|---|---|
| GRT_6107 | Class C Silicone Impregnating Varnish | One-component solvent-free silicone resin, serviceable at 250℃. Designed for VPI insulation treatment of coils in high-end applications such as 250℃-class high-voltage motors and high-speed traction motors. |
| GRT_9200 | High-Temperature Resin | One-component solvent-free silicon-carbon resin. Processable into short-fiber molding compounds or long-fiber prepregs; composites via compression molding or autoclave curing retain good mechanical properties at 500℃. |
| GRT_9201 | High-Temperature Resin | One-component solvent-free silicon-carbon resin for long-fiber prepregs. Molded by compression or autoclave; reusable repeatedly at 450℃ with short-term exposure up to 500℃. |
| GRT_9206 | High-Temperature Resin | One-component solvent-free silicon-carbon resin with excellent heat and radiation resistance in the cured state. Suitable for fiber-reinforced composites via RTM molding; as a high-temperature radome and insulation material, serviceable long-term at 350℃. |
| GRT_2601 | High-Temperature Silicon-Carbon Resin | Acetylene-functional silicon-carbon resin retaining good mechanical properties at 500℃. Used in compression or autoclave molding of fiber-reinforced composites for high-temperature radome, thermal protection, ablation-resistant and high-temperature insulation materials; long-term service at 350℃. |
| GRT_1201 | Ceramic Sealing Compound | One-component paste with excellent adhesion to ceramics, thermal resistance and water resistance. The sealed layer cures uniform and smooth, delivering superior overall hermeticity; long-term service at 400–450℃. |
| GRT_1203 | Ceramic Casting Compound | Two-component modified ceramic material sintered at 550℃, with low shrinkage during high-temperature sintering and good thermal conductivity and electrical insulation after sintering. |
| — | Diacetylenebenzene | Available in both meta- and para- structures; used in high-performance polymer synthesis, pharmaceutical synthesis, liquid crystal materials and aerospace materials. |
Building on 20 years of expertise in hydrocarbon resins, high-temperature resins and adhesives — combined with strengths in high-frequency wave-transparent materials and organic synthesis — our Electronic Materials division develops high-frequency, high-speed resins and additives for AI computing and next-generation communications, delivering high-performance material solutions.
| Product Family | Features & Applications |
|---|---|
| BVPE Resin | Functional crosslinker for free-radical cure systems with excellent compatibility with conventional peroxide initiators. Efficiently crosslinks unsaturated hydrocarbons to lower cure temperature while significantly improving dielectric, thermal and mechanical properties; low water absorption, high reactivity, low viscosity, high Tg and ultra-low Df — a perfect fit for M8-grade high-speed copper-clad laminates (CCL). |
| BVF Resin | Novel low-dielectric crosslinker offering lower dielectric loss and CTE plus higher glass transition temperature, with markedly improved solubility that increases formulation flexibility and simplifies processing. Suited to M8-grade CCL applications. |
| DVB Copolymer | Multifunctional vinyl polyphenyl oligomer, highly compatible with styrenic, allylic, acrylic and maleimide unsaturated monomers. Low solution viscosity, excellent aromatic solubility, extremely low Df and CTE — suitable for M8-grade and above CCL applications. |
| PPO/PPE Series | Low-molecular-weight reactive polyphenylene ether resins with different chemical end-caps for different formulation systems. Ultra-low Dk/Df, high Tg, high modulus, dimensional stability, excellent heat resistance and low water absorption under high heat and humidity — meeting the ultra-low-loss CCL requirements of 5G communications and AI accelerator cards; compatible with prepreg and resin-film processing. |
| Silicon-Containing Arylacetylene Resin (PMS) | Combinable with unsaturated PPE, butadiene oligomers, cyanate esters and maleimides into resin formulations. Rigid molecular structure, dense crosslinked network and Si–C bonds synergize to deliver low CTE, low dielectric loss, high heat resistance and dimensional stability — an ideal resin system for high-frequency high-speed PCBs, high-power modules and automotive electronics. |
Our epoxy adhesives feature wide mix-ratio tolerance, easy handling, strong bonding and good toughness, with excellent water, chemical and aging resistance — widely used for bonding, sealing and insulation.
After cure, epoxy structural adhesives offer high strength, good toughness and low odor, with excellent mechanical and electrical insulation properties as well as fatigue, aging, media and heat-humidity resistance. Suitable for bonding insulation materials, metals, composites, ceramics and carbon materials.
| Grade | Product Name | Features |
|---|---|---|
| GRT_1171 | Epoxy Structural Adhesive | Thixotropic, good processability and weathering resistance; multi-purpose room-temperature-curing adhesive. |
| GRT_1191T | Epoxy Structural Adhesive | Low room-temperature viscosity, suitable for brush application. Ideal for bonding insulation components such as slot wedges, or for on-site repairs. |
| GRT_1191Z | Epoxy Structural Adhesive | Paste form with outstanding adhesion to common metals. |
| GRT_1191XG | Epoxy Structural Adhesive | Low viscosity, brushable. For magnet bonding in all types of motors and generators. |
| GRT_1857 | High-Temperature Epoxy Adhesive | Excellent heat resistance, long-term service at 150°C. |
| GRT_1871 | High-Temperature Structural Adhesive | For magnet bonding in all types of motors and generators. Tensile lap-shear strength above 10 MPa at 200°C. |
All epoxy potting compounds are two-component room-temperature-curing systems that are easy to use, with low cure shrinkage, high strength, strong adhesion and good durability. Suitable for insulation and potting of motors, generators, electrical equipment and electronic components.
| Grade | Product Name | Features |
|---|---|---|
| GRT_1806 | Epoxy Potting Compound | Low cure shrinkage, suitable for large-volume potting. Mainly used for filling and fixing stator end parts. |
| GRT_1808 | Epoxy Filler Adhesive | Putty-like, easy to handle, low cure shrinkage, suitable for on-site power plant maintenance. |
| GRT_1831 | RT-Curing Epoxy Potting Compound | Good flow, self-degassing, for potting parallel ring insulation boxes of generator stator bar-type coils. |
| GRT_1839 | Epoxy Potting Compound | Low viscosity, self-degassing, low exotherm, suitable for large-volume potting. Excellent dimensional stability and weathering resistance after cure. For potting motor insulation materials and on-site potting. |
Epoxy brushing/impregnating adhesives have low viscosity, strong adhesion and high bond strength. Suitable for brushing, spraying and impregnating processes.
| Grade | Product Name | Features |
|---|---|---|
| GRT_1701E | Water-Based Epoxy Adhesive | Water-dispersed one-component epoxy adhesive. For bonding silicon steel laminations. |
| GRT_1828 | Solvent-Free RT-Curing Adhesive | Good flexibility after cure; for impregnating glass fiber tapes, ropes, polyester ropes and glass fiber mats. |
| GRT_5625 | Solvent-Free Epoxy Adhesive | Room-temperature cure, brushable and impregnable. Used in manufacturing electrical parts of generators. |
| GRT_5661 | Heat-Resistant High-Strength Adhesive | High bond strength at room temperature and 180°C; long-term service at 150°C. For bonding silicon steel laminations in high-speed motors. |
| GRT_5672 | High-Temperature Epoxy Brushing Adhesive | For surface brushing of metals, composites and carbon materials; long-term service at 180°C. |
Our modified rubber adhesives offer excellent toughness, ideal for bonding flexible substrates or materials with widely differing coefficients of thermal expansion. They perform reliably in motor insulation, carbon-fiber composite bonding and similar scenarios.
| Grade | Product Name | Features & Applications |
|---|---|---|
| GRT_5626 | Phenolic NBR Adhesive | Withstands thermal-cycling shock (−20 to 150℃); used for bonding motor insulation materials. |
| GRT_5626H | Modified Phenolic Rubber Adhesive | Good oil and heat resistance with good post-cure flexibility and a wide curing window. |
| GRT_5626T | Class H Modified NBR Adhesive | Resistant to thermal-cycling shock; long-term service at 180℃. |
| GRT_5627 | NBR Adhesive | Extremely high peel strength and durability, hot-oil resistant; used for bonding metals to carbon-fiber composites. |
| GRT_6108 | Groove Sealant | Non-vulcanizing fluorosilicone rubber for generator end-shield groove sealing; maintains viscoelasticity in service with excellent gas tightness. |
Glass-fiber-reinforced composites offer light weight, high strength, high modulus, chemical corrosion resistance and low thermal expansion. We manufacture custom parts to customer drawings using compression molding, filament winding and hand lay-up processes.
One-piece compression molded; long-term service at 230℃, short-term at 500℃, also usable as an ablation-resistant material. Applied as core insulation and structural components in nuclear reactor Control Rod Drive Mechanisms (CRDM).
4-meter length, integrally filament-wound and machined; long-term service at 250℃ with moisture and radiation resistance, used in nuclear reactor rod position indication systems.
Filament-wound tubes usable as electrical insulation materials, with custom dimensions available on request.
Custom-made to drawings: windshield rings, windshield panels, generator exciter-end pressure plates, spacer blocks and other electrical insulation parts.
The same material capabilities, delivered in different product forms across industries. Below are the six core application sectors GRT serves.
Insulation materials for nuclear reactor Control Rod Drive Mechanisms (CRDM), withstanding long-term extreme environments of high temperature, humidity, radiation and vibration.
Supporting large generator sets for thermal, nuclear, hydro and wind power, localizing resin adhesives to deliver high-temperature-resistant, high-reliability adhesive solutions.
BVPE / BVF / DVB / PPO / silicon-containing arylacetylene resins serving M8-grade and above high-frequency high-speed copper-clad laminates, supporting signal integrity in AI accelerator cards and 5G base stations.
500℃ and above resin systems; high-temperature-resistant, high-temperature wave-transparent, thermal-protection, low-dielectric-loss and ablation-resistant composites for high-speed flight vehicles and hot structures.
VPI impregnating varnishes and insulation bonding systems for traction motors, withstanding vibration and thermal cycling to support long-term reliable operation of high-speed rail and urban transit traction systems.
GRT supports custom development to drawings or specifications — full service from formulation design to pilot-scale production.