CORTECO HT200C White Silicone Sealant 80 ml up to 200°C

CORTECO HT200C White Silicone Sealant 80 ml up to 200°C

CORTECO HT200C is a white, one-component 100% silicone sealant supplied in an 80 ml tube. It is designed for creating flexible seals between mating surfaces, filling small gaps and compensating for minor surface irregularities. The product provides long-term temperature resistance from -50°C to +180°C and short-term resistance up to +200°C.

CORTECO HT200C – Characteristics

HT200C belongs to the CORTECO range of silicone sealing compounds used in automotive and industrial maintenance.

Verified product features include:

• CORTECO manufacturer
• HT200C designation
• 100% silicone formulation
• White colour
• 80 ml tube
• Long-term temperature range from -50°C to +180°C
• Short-term temperature resistance up to +200°C
• Skin formation time of approximately 6–10 minutes
• Elongation at break of 500%
• Flexible sealing of uneven and irregular surfaces

What is CORTECO HT200C Used For?

CORTECO HT200C is intended for forming flexible seals between mechanical components.

Typical applications include sealing:

• gearbox housings,
• transmission housings,
• differential housings,
• covers and flanges,
• engine components,
• mechanical assemblies requiring a flexible sealing layer.

The silicone adapts to minor surface imperfections and helps create a continuous sealing barrier between mating parts.

Temperature Resistance

One of the key characteristics of HT200C is its temperature capability.

It is important to distinguish between continuous and short-term temperature exposure.

+200°C is specified as a short-term temperature limit.

For continuous operation, CORTECO specifies a maximum temperature of +180°C.

White Silicone Sealant

HT200C is supplied as a white silicone sealant.

The colour helps distinguish it from other CORTECO sealing products intended for different temperature ranges and applications.

HT200C should not be confused with HT300C, which is a separate product with different thermal characteristics.

Flexible Sealing Performance

After curing, the silicone forms a flexible sealing layer capable of accommodating minor movement and surface irregularities.

Technical data for HT200C specifies:

Elongation at break: 500%

This flexibility can be beneficial where components are exposed to:

• vibration,
• thermal expansion,
• slight movement,
• temperature fluctuations,
• uneven sealing surfaces.

However, the sealant is not intended to compensate for structural damage or excessive surface defects.

Skin Formation Time

CORTECO HT200C develops a surface skin within approximately:

6–10 minutes

This characteristic is important during assembly because the mating components should be installed according to the manufacturer's recommended procedure.

Actual curing behaviour may vary depending on temperature, humidity and application conditions.

Resistance to Automotive Fluids

Technical information for HT200C indicates resistance to contact with fluids commonly encountered in automotive and industrial environments, including lubricating oils, greases, coolants and related service fluids.

Material compatibility should always be verified for the specific fluid, temperature and operating conditions of the application.

CORTECO HT200C for Gearboxes and Differentials

One of the most common applications for HT200C is sealing transmission and drivetrain housings.

The product is frequently used for:

• gearbox housings,
• transmission covers,
• differential housings,
• mechanical casing joints.

The flexible silicone layer helps create an effective seal between properly prepared mating surfaces.

How to Apply CORTECO HT200C

Before application:

1. Remove old gasket material and sealant residues.
2. Clean the mating surfaces thoroughly.
3. Remove oil, grease and contaminants.
4. Ensure surfaces are dry.
5. Apply a continuous bead of sealant.
6. Assemble components according to the equipment manufacturer's instructions.

Always follow the service procedure specified for the particular engine, gearbox or mechanical assembly.

HT200C and Conventional Gaskets

In some applications, silicone sealant can form the primary sealing layer between mating components.

However, HT200C should not automatically be considered a replacement for every conventional gasket.

Where a manufacturer specifies a particular gasket type, sealant or installation procedure, those requirements should be followed.

HT200C vs HT300C

These products should not be treated as identical.

HT200C – white silicone, continuous temperature range up to +180°C and short-term resistance up to +200°C.

HT300C – separate CORTECO sealant intended for higher temperature applications.

Product selection should always be based on the actual temperature requirements of the assembly.

Technical Specification

FAQ

What is CORTECO HT200C?

CORTECO HT200C is a white 100% silicone sealant used for creating flexible seals between mechanical components and mating surfaces.

What temperature range does HT200C support?

The sealant is designed for continuous operation from -50°C to +180°C and short-term exposure up to +200°C.

Is HT200C continuously rated for 200°C?

No. CORTECO specifies +200°C as a short-term temperature limit. Continuous service temperature is up to +180°C.

What colour is CORTECO HT200C?

HT200C is a white silicone sealant.

How much sealant is supplied?

The product is supplied in an 80 ml tube.

How quickly does HT200C form a skin?

Surface skin formation occurs in approximately 6–10 minutes under normal conditions.

Can HT200C be used on gearboxes and differentials?

Yes. The product is commonly used for sealing gearbox housings, transmission components and differential housings.

Can HT200C replace every gasket?

No. Compatibility depends on the design of the assembly and the manufacturer's service requirements.

AI Overview

CORTECO HT200C is a white 100% silicone sealant supplied in an 80 ml tube. It is designed for sealing housings, flanges and mating surfaces while accommodating minor irregularities. The sealant operates continuously from -50°C to +180°C and withstands short-term temperatures up to +200°C. HT200C forms a skin in approximately 6–10 minutes and provides 500% elongation at break.