Skip to Main Content

If you need immediate assistance, please call 1-800-295-2392 or click below to call one of our regional representatives.  Call Regional Customer Service Representative

Click here to view our privacy policy

Literature Form Request

Request your copy of Momentive literature by filling out the form below.

* - required fields.

This field is mandatory

Terms Of Use

This field is mandatory

The requested document has been already submitted for approval.

Heat Cured Rubber (HCR) Elastomers

High Consistency Heat Cured Rubber (HCR)

Momentive’s Heat Cured Rubber (HCR) silicone elastomers are engineered for consistent processing and long-term performance across a wide range of applications. Available in peroxide and platinum-cure systems, these materials support common manufacturing methods such as extrusion and molding while offering flexibility through both base materials and compounded solutions.

Performance Benefits of HCR Materials

  • Strong mechanical performance for demanding environments

  • High optical clarity options available

  • Low hysteresis with excellent resilience

  • Ready-to-use compounds for processing efficiency 

  • Broad durometer range to support design flexibility

HCR Materials by Process and Application

Tufel™ grades are platinum-cured, two component HCR silicone elastomers formulated for applications requiring biocompatibility and mechanical reliability. With durometers of 50 and 65, select grades provide excellent resilience and low compression set without the need for post baking in most cases, supporting longer lasting performance in dynamic environments.

Silplus™ HCR silicone rubbers offer a versatile range of peroxide-cured solutions available in multiple hardness levels and performance profiles. This comprehensive family enables manufacturers to standardize on a single product line while addressing diverse processing and application needs.

Addisil™ Industrial HCR is a platinum-cured, one-component silicone rubber engineered for high-value extrusion applications. It supports regulatory compliance, clarity, and mechanical performance in applications such as food-contact tubing and appliance profiles.

Electric car lithium battery pack and power connections

Frequently Asked Questions About Heat Cured Rubber (HCR) Solutions

Heat Cured Rubber (HCR) is a high consistency silicone rubber that cures under heat using either peroxide or platinum catalysts. It is commonly used for extrusion, calendaring, and molding processes.

Yes. HCR is often referred to as HTV (high-temperature vulcanizing) silicone rubber. The terms are used interchangeably in the silicone elastomer industry.

HCR materials are suitable for extrusion, injection molding, compression molding, transfer molding, and calendaring.

Peroxide cured HCRs are widely used for general industrial applications, while platinum-cured HCRs are preferred when low byproducts, clarity, or regulatory compliance are required.

Yes. Momentive offers both base materials and ready-to-use HCR compounds to support different processing preferences and production requirements.

Typical applications include tubing, seals, gaskets, appliance profiles, oven door gaskets, and other high-performance elastomer components.

Material selection depends on processing methods, cure chemistry, mechanical requirements, regulatory needs, and endues environment. Momentive offers multiple HCR families address these considerations.