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Custom HTV Compression Molding Services | Solid Silicone Rubber Parts Manufacturer

Professional HTV silicone compression molding factory for high-precision solid silicone parts. OEM production for automotive, electrical, industrial, and household silicone components.

Reliable HTV Silicone Compression Molding for Custom Solid Rubber Components

We specialize in OEM compression molding using high-temperature vulcanized (HTV) silicone to deliver durable, precise, and cost-effective parts for industrial and commercial use.

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Solid silicone valve seal manufactured by HTV compression molding for automotive use

What Is HTV Silicone Compression Molding?

HTV (High-Temperature Vulcanized) Silicone Compression Molding is a traditional but highly effective method for manufacturing solid silicone rubber parts. It involves placing a pre-formed silicone blank into a heated mold cavity, applying pressure, and curing the material under heat.

This process is ideal for low-to-medium volume production, large-sized parts, and parts requiring:

  • Superior tear strength

  • Excellent compression set

  • Consistent mechanical performance

It is widely used for custom silicone gaskets, seals, pads, O-rings, and industrial-grade components.

Key Advantages of HTV Compression Molding

🏭 Robust for Thick & Large-Volume Parts

HTV molding is suitable for thick-walled, high-resilience silicone products not achievable via injection molding.

⚙ Lower Tooling Cost

Compression molds are generally less expensive to produce and maintain compared to LSR molds.

🔁 Material Flexibility

Can accommodate a broad range of silicone formulations including:

  • Flame-retardant silicone

  • Food-grade & medical-grade HTV silicone

  • Electrically conductive silicone

  • High hardness (70-90 Shore A) silicone

🧼 Cleanroom-Compatible Production

Supports manual and semi-automated molding in ISO-certified environments.

🧪 Consistent Mechanical Properties

Finished parts exhibit high tensile strength, compression resistance, and thermal performance.

Applications of HTV Molded Silicone Components

IndustryTypical ProductsKey Benefits
Automotive
Grommets, bumpers, valve seals

Heat & oil resistance

Electronics
Keypads, insulators, EMI gaskets

Shock resistance, insulation

Household Appliances
Buttons, seals, door gaskets

Durable, non-toxic

Industrial Equipment
O-rings, anti-vibration pads

Compression strength, longevity

Medical & Food-Grade
Stopper, plugs, cushions

Biocompatible, FDA-compliant

Our HTV Molding Capabilities

We offer complete OEM silicone compression molding service, including:

  • ✔ Mold design and custom fabrication

  • ✔ Manual and semi-automatic compression presses

  • ✔ Multi-cavity or single-cavity mold support

  • ✔ Wide range of hardness (Shore A 30–90)

  • ✔ Custom color matching and surface texturing

  • ✔ Mold maintenance & in-house prototyping

All production is monitored under ISO 9001 and ROHS-compliant quality control systems.

HTV vs LSR: When to Choose Compression Molding?

CriteriaHTV Compression MoldingLSR Injection Molding
Material
Solid silicone (HTV)

Liquid silicone (LSR)

Part Size
Thick, large, or dense parts

Small or micro precision

Volume
Low to medium

High volume

Flash control
Moderate

Excellent

Tooling cost
Lower

Higher

Setup speed
Quick

Requires automation setup