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
Vinyl Methyl HTV (VMQ) Silicone Rubber
Phenyl HTV (PMQ) Silicone Rubber
Phenyl-Vinyl HTV (PVMQ) Silicone Rubber
Fluorosilicone HTV (FVMQ) Silicone Rubber
Modified HTV Silicone Rubbers
Types of HTV Silicone Rubber Offered by Silico®
| Type | Curing System | Key Features | Common Applications |
|---|---|---|---|
| Methyl HTV (MQ-HTV) | Peroxide or Platinum | High heat resistance, electrical insulation | Cables, seals, insulation parts |
| Vinyl Methyl HTV (VMQ) | Peroxide or Platinum | Good processability, fast cure | Gaskets, molded parts, O-rings |
| Phenyl HTV (PMQ) | Peroxide | Excellent low-temp flexibility, radiation resistance | Aerospace, military-grade seals |
| Phenyl-Vinyl HTV (PVMQ) | Peroxide | Combines low-temp and curing performance | Electronics, aviation components |
| Fluorosilicone HTV (FVMQ) | Peroxide | Outstanding oil and fuel resistance | Fuel system seals, chemical gaskets |
| Modified HTV | Customized | Custom 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
A1: HTV silicone rubber is used in applications requiring excellent thermal stability, such as seals, insulators, and molded parts for automotive and electrical industries.
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.
A3: Yes, Silico® offers FDA- and ISO-compliant HTV grades suitable for food contact and healthcare applications.
A4: Platinum-cured HTV provides lower shrinkage, higher purity, and better stability, making it ideal for high-precision or sensitive applications.
Packaging Specifications
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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.
