INTERTHERM 50

What INTERTHERM 50 is and why choose it

INTERTHERM 50 by International Marina (International Marine/International Paint) is a single-component, aluminium-pigmented silicone coating designed for high-temperature service. It acts as a light-reflective primer/finish for steel surfaces exposed to continuous dry temperatures up to approximately 540°C (1004°F), such as exhaust stacks, chimneys and hot pipework. Its moisture-curing technology allows multiple coats to be applied without heat curing, making it suitable for newbuilding, maintenance and onboard repairs in demanding marine and industrial environments. Some data below are based on publicly available technical information and should be verified against the official technical data sheet of the manufacturer.

Main features

• High-temperature resistance: designed for continuous dry temperatures up to around 540°C (1004°F) on correctly prepared steel, when specified in aluminium version.
• Moisture-curing silicone binder: cures by reaction with atmospheric moisture, so it does not require heat curing between coats.
• Single-component product: ready to use, no mixing of base and hardener required.
• Aluminium-pigmented finish: light-reflective appearance that helps reduce surface temperature and provides a uniform metallic aspect.
• Typical use on hot surfaces: suitable for steel flare stacks, exhausts, chimneys, vents and pipework in marine and industrial environments.
• Good theoretical coverage: typical volume solids around 45% with an indicative theoretical coverage of about 18 m²/l at 25 microns dry film thickness (data to be verified in the official TDS).
• Versatile application methods: can usually be applied by spray, brush or roller on suitably prepared surfaces (see manufacturer guidance).
• Compatible with zinc silicate primers: commonly used over zinc silicate primers to enhance corrosion protection in high-temperature service (system selection must be confirmed in the official TDS).

Technical specifications

The following values are indicative and may vary by batch, colour tone and region. Always confirm with the latest official technical data sheet from International Marina/International Paint.

• Product type: single-component, aluminium-pigmented silicone resin coating.
• Brand: International Marina / International Paint.
• Typical colours: Aluminium (HTA097); in some markets also available in Black (HTA099) for specific system designs.
• Binder: moisture-curing silicone resin.
• Volume solids (approx.): around 45% by volume.
• Recommended dry film thickness (typical): about 25 microns per coat (system-dependent).
• Theoretical coverage (approx.): around 18 m²/l at 25 microns DFT, not including loss factors.
• Flash point (approx.): around 25°C (single-pack solvent-borne coating).
• Recommended thinner/cleaner: International GTA007 (usage level and restrictions must follow local regulations and manufacturer instructions).
• Typical service temperature (dry): up to about 540°C on correctly prepared steel in aluminium version; actual limits depend on system and substrate preparation and must be confirmed in the official TDS.

Applications and use cases

• Marine exhaust systems: protection of exhaust stacks and uptakes on commercial and recreational vessels where metal surfaces are exposed to very high temperatures.
• Chimneys and funnels: light-reflective protective coating on steel chimneys, vents and funnels in ship and offshore installations.
• High-temperature pipework: external protection of steel pipework carrying hot gases in engine rooms and machinery spaces (when applied as part of an approved coating system).
• Newbuilding and maintenance: suitable both for new construction projects and for maintenance and repair jobs, including onboard touch-ups on compatible existing INTERTHERM 50 systems.
• Complement to zinc silicate primers: used as a high-temperature finish over zinc silicate primers to provide corrosion and heat resistance in harsh marine and industrial atmospheres.

FAQ

1. Is INTERTHERM 50 a single-component or two-component product?

   INTERTHERM 50 is a single-component (one-pack) coating based on a moisture-curing silicone resin. Some third-party descriptions may mention two components, but the official product is supplied as a one-pack aluminium silicone coating; always verify this in the latest manufacturer documentation.

2. What maximum temperature can INTERTHERM 50 withstand?

   When correctly applied on suitably prepared steel and used in its aluminium version, INTERTHERM 50 is typically designed for continuous dry service temperatures up to around 540°C (1004°F). Exact limits depend on the full coating system and must be checked in the current technical data sheet.

3. On which substrates can INTERTHERM 50 be used?

   It is primarily intended for carbon steel surfaces, usually either directly on properly prepared steel or as a finish over zinc silicate primers. Use on other substrates or previously coated surfaces must follow the compatibility guidance in the official technical data sheet.

4. Which areas on a vessel are typical for this coating?

   Typical areas include exhaust uptakes and stacks, engine exhausts, hot vents, chimneys and high-temperature pipework where steel can reach very high surface temperatures in service.

5. How is INTERTHERM 50 usually applied?

   According to public technical information, it can be applied by spray, brush or roller on suitably prepared surfaces. The choice of equipment, nozzle size, and thinner addition must follow the parameters in the official technical data sheet.

6. Can multiple coats be applied without heat curing?

   Yes. The moisture-curing crosslinking of INTERTHERM 50 allows multiple coats to be applied without heat curing. However, minimum overcoating intervals, maximum thickness per coat and total system thickness must follow the official technical recommendations.

7. What thinner should be used with INTERTHERM 50?

   The manufacturer commonly specifies International GTA007 as the suitable thinner and cleaner. The amount of thinner that can be added and the legal/technical limits depend on local regulations and must be confirmed in the latest technical data sheet.

8. Is this information fully verified?

   No. The data presented here are compiled from publicly accessible technical and commercial descriptions and may not reflect the latest revisions of the product. For design, specification and safety-critical decisions, always consult the current official technical data sheet and safety data sheet from International Marina/International Paint.

*Contenido generado por IA