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Silico® HTV Silicone Rubber

Silico® High Temperature Vulcanized (HTV) Silicone Rubber is a solid, high-consistency elastomer cured under heat. It is engineered for demanding industrial applications where thermal stability, mechanical strength, and long-term durability are critical. HTV silicone rubber is widely used in automotive, aerospace, electrical insulation, and high-temperature sealing applications.

HTV Silicone Rubber Products

Methyl HTV (MQ-HTV) Silicone Rubber

Methyl HTV (MQ-HTV) Silicone Rubber

Silico® MQ‑HTV is a high-performance methyl silicone rubber with excellent heat resistance, strength, and insulation. Ideal for gaskets, seals, cables, and molded parts in harsh environments.
Vinyl Methyl HTV (VMQ) Silicone Rubber

Vinyl Methyl HTV (VMQ) Silicone Rubber

Silico® VMQ HTV is a vinyl silicone rubber with excellent heat resistance, strength, and insulation. Suitable for automotive, electrical, medical, and food-grade molding and extrusion.
Phenyl HTV (PMQ) Silicone Rubber

Phenyl HTV (PMQ) Silicone Rubber

Silico® PMQ‑HTV is a phenyl-modified silicone rubber with excellent flexibility at –100 °C, heat resistance, and radiation durability. Perfect for aerospace, cryogenics, electronics, and sealing applications.
Phenyl-Vinyl HTV (PVMQ) Silicone Rubber

Phenyl-Vinyl HTV (PVMQ) Silicone Rubber

Silico® PMQ-HTV is a phenyl-modified silicone rubber with flexibility at –100 °C and strong resistance to heat and radiation. Used in aerospace, electronics, cryogenics, and defense.
Fluorosilicone HTV (FVMQ) Silicone Rubber

Fluorosilicone HTV (FVMQ) Silicone Rubber

Silico® FVMQ HTV is a silicone rubber with strong fuel and chemical resistance, flexible from –60 °C to +232 °C. Used in aerospace, automotive, industrial seals, and electronics.
Modified HTV Silicone Rubbers

Modified HTV Silicone Rubbers

Silico® Modified HTV is a durable silicone rubber with strong strength, low compression set, and options like flame retardant or conductive. It resists heat, weather, and chemicals (–60 °C to +250 °C), used in cables, seals, and tubing.

Types of HTV Silicone Rubber Offered by Silico®

TypeCuring SystemKey FeaturesCommon Applications
Methyl HTV (MQ-HTV)Peroxide or PlatinumHigh heat resistance, electrical insulationCables, seals, insulation parts
Vinyl Methyl HTV (VMQ)Peroxide or PlatinumGood processability, fast cureGaskets, molded parts, O-rings
Phenyl HTV (PMQ)PeroxideExcellent low-temp flexibility, radiation resistanceAerospace, military-grade seals
Phenyl-Vinyl HTV (PVMQ)PeroxideCombines low-temp and curing performanceElectronics, aviation components
Fluorosilicone HTV (FVMQ)PeroxideOutstanding oil and fuel resistanceFuel system seals, chemical gaskets
Modified HTVCustomizedCustom properties (e.g. flame retardant, conductive)Specialized industrial or electrical uses

Product Advantages

  • Operates reliably from –90 °C to +250 °C (up to +300 °C in specialty grades)

  • Excellent resistance to UV, ozone, aging, and chemicals

  • High tensile strength, tear resistance, and dimensional stability

  • Superior electrical insulation properties

  • Compatible with compression molding, extrusion, and injection molding

  • Available in both peroxide-cured and platinum-cured grades

  • Complies with international standards: RoHS, REACH, UL, FDA (select grades)

Typical Applications

  • Automotive: Gaskets, O-rings, ignition cables, engine seals

  • Aerospace: Thermal insulation parts, flame-retardant seals

  • Electronics: Cable jacketing, insulators, sensor housings

  • Medical & Food: Oven components, tubing, compliant rubber parts

  • Industrial: Rollers, diaphragms, high-load and high-temp parts

HTV Silicone Rubber FAQs

Q1: What is HTV silicone rubber used for?

A1: HTV silicone rubber is used in applications requiring excellent thermal stability, such as seals, insulators, and molded parts for automotive and electrical industries.

Q2: What's the difference between HTV and RTV silicone rubber?

A2: HTV cures under heat and offers higher mechanical and thermal performance, while RTV cures at room temperature and is easier to use for sealing and coating.

Q3: Is HTV silicone rubber safe for food or medical use?

A3: Yes, Silico® offers FDA- and ISO-compliant HTV grades suitable for food contact and healthcare applications.

Q4: Which is better—platinum cured or peroxide cured?

A4: Platinum-cured HTV provides lower shrinkage, higher purity, and better stability, making it ideal for high-precision or sensitive applications.

Packaging Specifications

Packaging Specifications

Silico® Prouducts

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How to Choose Modified Silicone Resins?

Choose peroxide-cured HTV for general use with strong mechanical performance. Select platinum-cured HTV for clean curing, low shrinkage, and food or medical applications.

For high heat resistance, pick grades rated up to 250 °C or more. Use reinforced types for strength, or soft grades for flexibility.

Need oil or fuel resistance? Go with fluorosilicone (FVMQ). For low-temperature use, choose phenyl-modified (PMQ/PVMQ).

Ensure the product meets FDA, UL, or RoHS if required.

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