Selection Guide for Shin-Etsu HTV High-Temperature Vulcanizing Silicone Rubber

I. Brand and Product Overview

Shin-Etsu Chemical Co., Ltd., a global leader in organic silicon materials, offers HTV (High-Temperature Vulcanizing) silicone rubber—a solid milled silicone product. Cured via a peroxide system at high temperatures, it delivers exceptional performance in thermal resistance (high and low), weatherability, electrical insulation, chemical stability, and mechanical strength. Compatible with mainstream processing methods including compression molding, extrusion, and hot air vulcanization, it serves as a core raw material for industrial-grade, food-grade, and specialty-condition silicone products, widely used across advanced manufacturing sectors worldwide.Dongguan Ningdao Rubber & Plastic Co., Ltd. is an authorized 20 distributor of Shin-Etsu Chemical (Japan). With deep expertise in the silicone rubber industry, we offer a complete inventory of Shin-Etsu HTV products and proven technical solutions. We provide customers with one-stop procurement services, including authentic original products, technical support, and product selection guidance.

II. HTV Silicone Rubber: Functional Categories, Models, and Application Scenarios (For detailed technical specifications, please contact a Ningdao sales representative.)

(I) General Molded HTV Silicone Rubber

Model: KE-931-U, KE-941-U, KE-951-U, KE-961-U, KE-971-U, KE-981-U, KE-961T-U, KE-971T-U, X-30-3491-U

Application scenarios: General silicone accessories, electronic insulation gaskets, household appliance seals, industrial standard O-rings, and basic molded silicone products.

(II) HTV Silicone Rubber with No Secondary Curing

Model: KE-742-U, KE-752-U, KE-762-U, KE-772-U, KE-782-U

Applications: Thin-walled silicone parts for simplified production processes, rapid prototyping general seals, and industrial silicone products not requiring secondary vulcanization.

(3) HTV Silicone Rubber for Thick-Wall Molding

Model: KE-850-U, KE-870-U, KE-880-U, KE-890-U

Application scenarios: thick-walled silicone sealing blocks, large molded silicone parts, heavy-duty industrial buffer components, and high-thickness silicone structural parts.

(IV) General-Purpose Extrusion-Grade HTV Silicone Rubber

Model: KE-541-U, KE-551-U, KE-561-U, KE-571-U, KE-581-U

Applications: Silicone sealing strips, custom extruded profiles, standard silicone tubes, and continuously extruded silicone products.

(5) HTV Silicone Rubber for Pipe Applications

Model: KE-153-U, KE-174-U, KE-1551-U, KE-1571-U

Application scenarios: Food-grade silicone tubing, medical drainage tubes, industrial fluid transfer hoses, and high-temperature-resistant tubing for home appliances.

(VI) High-Strength HTV Silicone Rubber

Model: KE-555-U, KE-575-U

Application scenarios: high-tear-resistant seals, load-bearing silicone components, wear-resistant industrial gaskets, and heavy-duty silicone products.

(VII) Low-Hardness, High-Elongation HTV Silicone Rubber

Model: KE-520-U, KE-530B-2-U, KE-540B-2-U

Applications: Soft gaskets, flexible cushioning components, high-conformity sealing parts, and high-elasticity silicone products.

(VIII) Flame-Retardant HTV Silicone Rubber

Model: KE-5620W-U, KE-5620BL-U, KE-5612G-U, KE-5634-U

Application scenarios: flame-retardant sealing components for electronics and electrical appliances, photovoltaic module sealing, electrical insulation flame-retardant parts, and fire-resistant silicone accessories.

(IX) Heat-Resistant HTV Silicone Rubber

Model: KE-552-U, KE-582-U, KE-552B-U

Application scenarios: seals for high-temperature environments, heat-resistant components near engines, gaskets for thermal equipment, and products designed for long-term high-temperature operation.

(X) Sealed High-Temperature-Resistant HTV Silicone Rubber

Model: KE-7511-U, KE-7611-U, KE-7711-U

Application scenarios: seals for high-temperature and high-pressure environments, sealing components for thermal cycling conditions, and steam equipment seals.

(11) Steam-Resistant HTV Silicone Rubber

Model: KE-7511-U, KE-7611-U, KE-7711-U

Application scenarios: steam sterilization equipment components, hot water system seals, silicone products for humid and hot environments, and sealing parts for cooking equipment.

(XII) Conductive HTV Silicone Rubber

Model: KE-3601SB-U, KE-3711-U, KE-3801M-U

Applications: ESD sealing components, electronic conductive gaskets, EMI shielding parts, and conductive silicone structural components.

(13) Thermally Conductive HTV Silicone Rubber

Model: KE-6801-U

Application scenarios: electronic heat dissipation pads, power device thermal conductive sealing, and new energy equipment thermal management components.

(14) HTV Silicone Rubber for Industrial Rubber Rolls

Model: KE-765-U, KE-785-U, KE-7008-U, KE-7005-U

Applications: Office equipment rubber rollers, industrial conveyor rollers, hot press rollers, and printing/copying machine rollers.

(15) High-voltage-resistant HTV silicone rubber

Model: KE-655-U, KE-675-U

Applications: high-voltage electrical insulators, power transmission and distribution equipment seals, high-pressure insulation gaskets, and electrical voltage-resistant components.

(XVI) Oil-Resistant渗出型 HTV Silicone Rubber

Model: KE-503-U, KE-5042-U, KE-505-U, KE-136Y-U

Application Scenarios: Oil-resistant seals, components in contact with lubricating oil, sealing in oil and gas environments, silicone products designed to prevent oil leakage.

(17) Ultra-low Temperature HTV Silicone Rubber

Model: KE-136Y-U

Application scenarios: ultra-low temperature sealing, cold chain equipment components, cold-resistant silicone products, and low-temperature operating condition seals.

(18) HTV Fluorosilicone Rubber (Oil and Solvent Resistant)

Model: FE-251-U, FE-261-U, FE-271-U, FE-351-U, FE-361-U, FE-451-U

Applications: Fuel system seals, solvent-resistant chemical components, oil-gas diaphragms, and seals for harsh oil environments.

(XIX) SEP Silicone-Modified EPDM Rubber (HTV Modified Series)

Model: SEP-1711-U, SEP-1721-U, SEP-1731-U, SEP-855B-U, SEP-363-U, SEP-1631-U

Application scenarios: high-temperature and tough silicone parts, chlorine-resistant products, solar module sealing, flame-retardant modified silicone components, and sponge foam silicone products.

III. Core Application Areas of Shin-Etsu HTV Silicone Rubber

1. Electrical and Electronics

As a core insulating, sealing, heat-dissipating, and flame-retardant material for electronic devices, it is used in PCB insulating gaskets, appliance flame-sealing components, power supply heat-dissipation pads, high-voltage transmission and distribution insulators, electronic keys, and electromagnetic shielding parts to ensure stable operation of electronic equipment under extreme temperatures, humidity, and high-pressure conditions.

2. Automotive Manufacturing

Engineered for demanding automotive conditions to seal engine components, fuel system oil-resistant parts, radiator hoses, turbocharger seals, waterproof connectors, shock absorbers, and sunroof/headlight gaskets. Meets requirements for oil resistance, heat resistance, cold resistance, and long service life.

3. Home Appliances

Seals, insulation gaskets, waterproof O-rings, and defrost components for home appliances such as microwaves, rice cookers, kettles, refrigerators, and air conditioners. Designed with food-contact safety, heat resistance, aging resistance, and low compression set to extend appliance lifespan and enhance operational safety.

4. Office Equipment

Rubber rollers, paper feed rollers, seals, and buffer components for printers, copiers, and fax machines. Leveraging superior heat resistance, release properties, and mechanical strength to ensure continuous and stable operation of office equipment.

5. Food Contact

Meets food-grade safety standards for use in food-grade silicone tubing, food storage container gaskets, baking molds, baby and mother care accessories, and catering equipment seals. Heat- and steam-resistant, non-toxic, odorless, easy to clean, and suitable for food processing and catering applications.

6. Industrial Machinery

Used for industrial equipment seals, O-rings, buffer pads, rubber rollers, hydraulic system oil-resistant components, and chemical equipment corrosion-resistant seals. Withstands harsh conditions including high temperatures, oils, acids, alkalis, and solvents to enhance the operational stability of industrial equipment.

7. New Energy Sector

Designed for photovoltaic module sealing, solar equipment weather-resistant components, new energy battery thermal management heat sinks, and charging pile insulation seals. Offers weather resistance, flame retardancy, thermal conductivity, and electrical insulation to meet the demands of long-term outdoor and high-temperature operation in new energy equipment.

8. Chemical corrosion protection and special operating conditions

Seals and structural components designed for oil, solvent, steam, chlorine water, and ultra-low temperature environments. Ideal for chemical pipeline sealing, pool equipment chlorine-resistant parts, cold chain low-temperature sealing, steam equipment gaskets, and other applications requiring performance in extreme conditions.

9. Medical Consumables (Non-Implantable)

Ideal for medical drainage tubes, equipment seals, mask components, and sterilization device parts. Offers excellent biocompatibility, steam sterilization resistance, and non-toxic safety to meet medical consumable production requirements.

10. Leisure & Daily Use

Used in swim goggles, snorkel accessories, sports equipment seals, and daily silicone items. Combines high elasticity, clarity, strength, and safety for an enhanced user experience.

IV. Core Product Advantages

Comprehensive product categories covering general-purpose and specialized models for all application scenarios.

Highly adaptable processing: supports compression molding, extrusion, and hot air vulcanization.

Stable and reliable performance; withstands extreme temperatures, weathering, and chemical corrosion for a long service life.

Safe and environmentally friendly; meets international environmental standards. Some models are suitable for food-contact and medical consumable applications.

Complete supporting system: full range of vulcanizers, primers, and colorants. One-stop solution for production and processing needs!

Complete supporting system: full range of vulcanizers, primers, and colorants. One-stop solution for production and processing needs!

V.Ningdao Adhesive Industry – Procurement Partnership Assurance

✅ 20 Shin-Etsu Compliance AuthorizationGenuine products guaranteed, stable batches, fully traceable—no fakes.

✅ All categories in stock, fast shippingHTV full series in stock; samples available for small orders, rush service for large quantities.

✅ Professional Technical Support: Complimentary selection advice, vulcanization process guidance, and processing optimization solutions

✅ Cost-effective partnershipFactory-direct pricing with volume discounts to reduce procurement and production costs

✅ Dedicated support throughoutEnd-to-end procurement: pre-sales selection, mid-sales order tracking, and post-sales technical support.

Source Japan Shin-Etsu HTV high-temperature vulcanized silicone rubber from Dongguan Ningdao Industry & Trading Co., Ltd. Genuine products, reliable technology, fast delivery, and dedicated support to help improve your product quality and efficiency. Contact us today for samples and orders—let's partner for long-term success!