high temperature coating preventing overheating

Heat resistant paint for all temperature ranges

When a substrate is subject to heat and rapid temperature fluctuations, it can lead to surface breakage and corrosion. Electrical and engine components, chimneys and ovens, pipework and chemical plants, all these are exposed to possibly damaging temperatures and conditions. A high temperature coating works to protect the substrate from variations and extremes of temperature without losing functionality. As well as protecting from heat, these coatings:

  • Protect from corrosion under insulation (CUI): High temperature coatings for steel provide a layer of protection between the hot surface and insulation
  • Temperature range up to 1000°C: Different formulations of heat resistant coating for metal provide resistance to temperatures from -196°C to 1000°C
  • Abrasion resistant: Suitable for rough environments
  • Reduce thermal fatigue: Heat resistant coating improves performance of machinery and extend part life
  • Allow for higher operating temperatures while limiting thermal exposure

In this article we take a look at the different categories of high temperature coatings and explain how to choose the right one for your project. Here you will also find some product suggestions and heat resistant coating contractors in Malaysia.


1st things 1st – 3 questions to help you define which heat resistant coating you need

As with any coating application, understanding the needs of your substrate and the application process is crucial for making the right coating choice. As well as knowing the substrate type, you need to know its environment, its use, the coating time parameters, and the likely ways it will fail. Here are some questions you need to ask before you can choose a high temperature coating:

  1. What is the maximum temperature of the substrate that you wish to protect?
    One of the most common reasons for failure is expecting high temperature coatings to perform outside of the temperature range they were manufactured to tolerate. Each coating type has a specific temperature range, and outside it the functionality and efficacy fails. Make sure not to understate the maximum temperature.
    For example, International Intertherm 50 is recommended for temperatures up to 540°C
  2. Is the substrate insulated?
    If you are choosing a heat resistant coating for metal to combat CUI, that coating needs to be specially formulated for the purpose. It needs corrosion resistance, but it also needs to be able to be applied to hot substrates and deal with boiling water exposure.
    For example, PPG HI-TEMP 1027 is designed to prevent CUI and can be applied to hot substrates
  3. What will the substrate temperature be during application?
    There are high temperature coatings formulated for hot (up to 300oC) and ambient temperature application. A hot application may be required to avoid needing to shut down operations, spot coating problem areas, and generally not disrupting a facility.
    For example, Jotun Epoxy HR can be applied on substrates up to 150oC

The 4 types of high temperature coating to choose from

High temperature coating is the one that protects surfaces from overheating and failing due to high heat. Note that these coatings do not necessarily protect from flames. Essentially, heat resistant coatings can be divided into four types:

high temperature coating on ceiling pipes

Metal additive high temperature coating is common on ductwork that may become heated.

1. Heat resistant sprayed metal coatings

Temperature resistance: from -50  to +550°C

Of all the sprayed metal coatings, thermal spray aluminium (TSA) is the most common. TSA and sprayed metal and metal additive coatings are usually applied on steel to provide protection from corrosion and high temperatures.

Uses: Thermal sprayed aluminium is particularly used as high temperature coatings for steel for CUI prevention in onshore and offshore platforms and processing plants.
Benefits: Excellent corrosion protection combined with heat resistance.

2. Liquid high temperature coating

Temperature resistance: Up to +550

The liquid high temperature coatings are usually either epoxy or silicone based. The general rule is that the more silicone the coating contains the higher temperatures it can resist. These coatings exist as single and two component systems and are formulated on water or solvent base.

Benefits: Liquid paints have the benefit of being able to be applied to hot substrates without affecting the coating.
Uses: Applied at new construction, on-site and as a maintenance coating.

3. High temperature powder coatings

Temperature resistance: from 200 to 600°C

As well as being corrosion resistant, high temperature powder coatings have been developed for heat resistance to medium to high temperatures. The powders are usually epoxy and silicone-based (like the liquid paints), and silicone-based powders perform better at higher heats.

Benefits: being VOC free and having a wide range of gloss and colour finishes
Uses: Becoming more and more popular as high temperature coating for metal; can be applied instead of liquid heat resistant coating on ferrous metals (steel) offsite.

4. Ceramic heat resistant paints

Temperature resistance: up to +1000

The heat resistance properties of ceramic coating are well known, and some of the highest heat coatings available are ceramics. Ceramic coatings are known among car enthusiasts for manifold and engine component protection, but they also have a reputation as industrial heavy duty and offshore high temperature coating.

Benefits: Heat resistant ceramic paint also provides corrosion protection and chemical resistance and a hard finish.
Uses: applications that require the highest protection from temperatures: car underhood parts, heavy duty industrial machinery, offshore structures etc.


Heat resistant paint Malaysia – Find the right product

Heat resistant coatings are used across a wide range of industries, as well as by homeowners and barbecue enthusiasts. As such, a wide range of products and services are available across the country, no matter your project. Below is a table outlining just a few of the products and their costs, as an indication. Heat resistant coatings should be applied by a trained professional. If you would like more information about heat resistant coatings, or would like to connect with one of our partners to coat your project, contact us! Our experts are here to help, just use the “Request a quote” button below the article and take advantage of our 100% free quote service.

Heat Resistant Coating ProductProduct DescriptionApplications
PPG HI-TEMP 1027One component, silicone-based ceramic coating for carbon steel and stainless steelCUI prevention in chemical/petrochemical, power, and offshore market segments up to 650°C
International Intertherm 50Single components, silicone-based high temperature coatings for steelCorrosion protection in fire stacks, chimneys, exhausts, vents and pipework up to 540°C
Jotun Solvalitt Midtherm Single component silicone acrylic heat resistant coating for metal; steel and aluminiumCorrosion protection for insulated and non insulated surfaces up to 260°C
Rust-Oleum 4200 Heat Resistant TopcoatSilicone-based topcoat with an aluminium finish for bare steel or primed surfaces Heat resistance up to 425oC

A peek into the high temperature coating manufacturers in Malaysia

The following high temperature coating manufacturers are present in Malaysia:

High temperature coating manufacturerAddress in Malaysia
Nippon Paint (M)Sdn Bhd Lot I-17 Taman Perindustrian Subang Utama, Jalan SU 4, 40300 Shah Alam Selangor Darul Ehsan
PPG Coatings (M) Sdn. Bhd.Jalan Kilang 51/205, Seksyen 51, 46050 Petaling Jaya, Selangor
International Paint Sdn BhdG floor, 7191 ANZ Yard, Jalan Mak Lagam, 24000 Kemaman
3M MalaysiaLevel 8, Block F, Oasis Square, No. 2, Jalan PJU 1A/7A, Ara Damansara, 47301 Petaling Jaya, Selangor
Dover PaintsNo 4, Jalan Tabla 33/21, Seksyen 33, 40400 Shah Alam, Selangor

 


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