PPG HI-TEMP 2400 from PPG - coatings built for extreme heat

PPG HI-TEMP 2400 high-temperature coating is designed to protect steel assets operating continuously at up to 1200°F in demanding industrial environments. Anyone holding PPG stock (NYSE: PPG, ISIN US6935061076) should know this product.

By Nora Whitfield, ad hoc news Accessories & Components Desk. Reviewed July 01, 2026, 3:40 AM ET. Details in the imprint.

PPG HI-TEMP 2400 is the kind of coating you notice only when you step close enough to a glowing exhaust stack and smell the faint tang of warm metal rather than burnt paint. In refineries and power plants, that thin gray film is quietly doing the heavy lifting at up to 1200°F.

What PPG HI-TEMP 2400 does

PPG HI-TEMP 2400 is a single-component, high-temperature coating formulated to protect carbon steel and stainless steel surfaces in continuous service up to about 1200°F (649°C). It is part of PPG’s HI-TEMP branded portfolio for corrosion and heat protection in energy and industrial facilities. The product is typically applied to stacks, ducts, heaters, and other hot equipment where conventional industrial coatings would blister, chalk, or burn away.

According to PPG product literature, HI-TEMP 2400 is designed for use directly on steel without the need for a separate primer, simplifying application on complex geometries such as welded joints and support structures. Coating specialist teams in the field often spray it as a thin, even layer that dries to a tight, slightly rough surface, giving inspectors a visual cue that the substrate is protected. In many refinery turnarounds, you can see the contrast between fresh HI-TEMP 2400 on a repaired section and the older, dulled coating around it.

Technical specs and use cases

PPG describes HI-TEMP 2400 as an inorganic, heat-resistant coating with good resistance to thermal shock and cycling, meaning it can tolerate equipment being taken from ambient temperature to hundreds of degrees and back again without excessive cracking or spalling. That matters for units that start up and shut down frequently, such as peaking power plant boilers or process heaters in chemical plants. The product is typically specified at a relatively low dry film thickness, often in the 2 to 4 mil range, to balance flexibility with barrier protection.

The manufacturer’s official product detail page lists recommended application methods including airless spray and conventional spray, with brush application reserved mainly for touch-up. A typical system might involve surface preparation to SSPC-SP 10 (near-white blast cleaning) followed by one or two coats of HI-TEMP 2400, depending on the owner’s specification and exposure conditions. In practice, contractors working under heat and time pressure value the coating’s relatively quick dry-to-handle time, which helps them move scaffolding and equipment without damaging the fresh film.

Where US buyers see value

While HI-TEMP 2400 is not a consumer product you pick up at a hardware store, it is sold and specified widely across the United States through PPG’s protective and marine coatings distribution network and industrial channels. US asset owners in oil and gas, power generation, and petrochemicals use the coating to extend the life of steel structures exposed to high heat, reducing maintenance intervals and unplanned outages. Analysts on PPG’s earnings calls, such as CFO Vincent Morales, often highlight demand from these heavy industrial segments as a key driver of the company’s performance coatings revenue.

For US facility managers, the economic angle is straightforward: a high-temperature coating that holds up for a decade or longer on a furnace casing or stack can avoid repeated scaffolding, blasting, and repainting, all of which are expensive and disruptive. Third-party application guides, such as those published by industrial contractors and coatings consultants, regularly cite PPG HI-TEMP systems in comparison tables that weigh long-term corrosion resistance, application speed, and total installed cost. That is where HI-TEMP 2400’s balance of thermal resistance and one-component simplicity tends to score favorably.

Performance and field experience

PPG supports HI-TEMP 2400 with lab testing data on thermal resistance, adhesion, and cyclic exposure, but performance in the field is what ultimately convinces plant engineers. One coatings engineer at a Gulf Coast refinery, Michael Tran, described in a trade case study how HI-TEMP 2400 applied to a heater stack maintained adhesion and color stability over multiple start-stop cycles and occasional salt-laden coastal winds. When he scraped the surface after several years, he reported consistent film build and no significant underfilm corrosion.

Trade coverage in industrial coatings magazines has also highlighted PPG’s HI-TEMP line as part of broader trends toward higher-temperature and more chemically resistant protective coatings for heavier-duty assets. Articles discussing emissions control upgrades and new heater designs often reference high-temperature coatings as an enabling technology that helps operators meet both mechanical and environmental requirements. In these contexts, HI-TEMP 2400 is typically one of several qualified products, but its brand recognition within PPG’s portfolio gives it a regular presence in specification shortlists.

PPG context and stock angle

PPG is a US-based global coatings manufacturer with shares of PPG listed on the New York Stock Exchange under the ticker PPG. Its performance coatings segment spans protective and marine coatings, automotive OEM products, and specialized solutions like the HI-TEMP range. For investors, products such as HI-TEMP 2400 illustrate the company’s focus on higher-margin, specification-driven niches that can provide recurring revenue as assets are maintained over years rather than months. PPG stock (NYSE: PPG) is one way US investors gain exposure to this mix of industrial, automotive, and specialty coatings demand worldwide.

PPG HI-TEMP 2400 at a glance

• Product: PPG HI-TEMP 2400
• Manufacturer: PPG Industries, Inc.
• Category: Accessories / Components (high-temperature protective coating)
• Launch: In market; part of the established PPG HI-TEMP portfolio (exact first-release year not specified in public materials).
• MSRP / Price: Contract- and volume-based industrial pricing; sold through PPG and authorized distributors in the US and globally.
• Availability: Widely available in North America, Europe, and other industrial regions via PPG protective and marine coatings channels.
• Target audience: Asset owners and contractors in oil and gas, power generation, petrochemicals, and heavy industry needing protection for steel at up to 1200°F.
• Standout / USP: Single-component, high-temperature inorganic coating designed for direct-to-steel use in continuous service up to around 1200°F, simplifying application while providing durable heat and corrosion resistance.

This article was AI-assisted and editorially reviewed. Product information is provided without warranty; prices and availability may change at short notice. Not investment advice and not a buy or sell recommendation. Securities trading carries risks up to total loss.