Application industries, powder Coating

What is High Temperature Powder Coating?

Powder coating is one of the most common coating methods that professionals turn to when they require fast, even, and reliable industrial finishing. Applied as a free-flowing dry powder, the coating provides unparalleled versatility thanks to its easy application. Unlike conventional liquid paints, which require an evaporating solvent for application, powder coating uses electrostatic application methods before being cured under high heat. Most powders require baking at around 350-400 degrees Fahrenheit for 10-20 minutes to fully cure.

we have a variety of different high temperature coatings available, and bring our long history of experience and expertise to help our clients find the right products for their specific needs. Thanks to the high temperatures at which it is cured, powder coating is viable in conditions that may not be suitable for other coating techniques. From exhaust and mufflers to heat shields and industrial equipment, high-temperature uses are completely viable. But just how far does that heat resistance go? The truth is, a powder coating’s heat resistance varies with the materials that are used. An epoxy coating will be very different from a nylon, fluoropolymer, or ceramic coating, for example.

There are four heat resistance categories that powders will generally fall under:

Ambient to 200°F

Up to 500°F

Up to 800°F

Up to 1,800°F

General Ambient Temperature Powder Coatings

The most common powder coatings can withstand temperatures between ambient to 200°F, although most are on the lower end of the spectrum. These general powders will do the trick for most typical applications, but may be susceptible to significant color change and other issues once you start pushing that 200°F+ range. As a rule of thumb, general powders can be used on most external components without a problem, but should be avoided when temperatures are expected to exceed 150°F, like engine components or exhaust parts.

Fluoropolymer Mid-Range Powder Coating

The next level up with regard to heat resistance is the use of Fluoropolymer coatings. Fluoropolymers are a family of plastic resins which are based on fluorine/carbon bonds. This coating is characterized by its multiple carbon–fluorine bonds, and is often most commonly seen on Teflon coated frying pans. These are usually rated between 300°F to 500°F and are a great choice if additional properties are desired like non-stick performance, chemical, or abrasion resistance. Some fluoropolymer powder coatings are also commonly used on exterior applications of commercial and residential high-rise buildings.

Specialty High Temperature Powder Coating

Need even more heat resistance? That’s going to push you into specialty high temperature powder territory. The specialty high temperature powder coatings we have available are rated between 600-800°F, and withstand these higher temperatures while still offering good corrosion resistance and some unique cosmetic options. These are ideal for protecting the exhaust components we mentioned earlier on, as well as heater shrouds and other commercial products from high-temperatures. Despite the high temperature rating, high-temperature powder coating is not recommended for direct flame exposure.

High Temperature Ceramic Coating

Ceramic coatings are the highest heat resistance category readily available to be applied by coating. Rated to temperatures up to 1,800°F, this is the ideal material to use when your project involves extreme heat environments. High temperature ceramic coatings can also perform as a thermal insulator, reducing the amount of heat that radiates from a surface – making them ideal for the most demanding automotive, aerospace, and industrial applications. Furthermore, many of these coating options only require an ambient cure, and possess excellent wear properties, allowing them to be applied to a wide range of substrates. Their versatility and strength are why ceramic coatings are often found in sub-sea applications, in your engine compartment, in aircraft, and basically anywhere that you’ll find extreme levels of heat, pressure, and friction.

The primary purpose of heat-resistant coatings is to protect surfaces from damage due to heat, deterioration, corrosion and discoloration in the following industries and more:

Agriculture: Here heat-resistant powder coatings protect from weather elements.

Aluminum extrusions: This product improves the appearance and durability of aluminum extrusions.

Architecture: Heat-resistant coatings feature in building materials, landscaping items, windows and doors.

Commercial automotive: Besides protection, it strengthens products like brackets, coil springs and engine covers.

HVAC: This coating adds strength and prevents corrosion in these systems.

Industrial: Powder coating adds durability to various industrial applications.

Types of Heat-Resistant Powder Coatings

These powder coatings can resist high temperatures in various applications by incorporating heat-resistant silicone resins. While there is not necessarily a ‘best’ heat-resistant coating, several types of heat-resistant powder coatings are on the market, each with its optimal application use:

Silicone-based: This powder coating offers great heat resistance and works well in industrial machinery and automotive exhaust systems applications.

Super durable polyester powder: This product is made to withstand demanding environments and harsh climates. It improves finishing thanks to ultraviolet light and corrosion resistance.

Epoxy coatings: With generally good abrasion and impact resistance, this type is seen in industrial applications, electrical components and petrochemical facility applications.

Fluoropolymers: Often finding use in the architectural sector and non-stick cook or bakeware, this powder coating has excellent weatherability and chemical and abrasion resistance.

Ceramic coatings: This coating has extreme temperature resistance and can find use as a thermal insulator in automotive, industrial and aerospace industries.

Wood and gas stoves

Pellet stoves

Stove pipes

BBQs

Generators

Heat Resistant Powder Coatings: 250 °C

	Product Description	Peak Temperature	Continuous Temperature	Gloss  60°C (ASTM D523-14)	Cure Schedule	Notable Benefits	Testing Conditions
1PC-619 Series	An interior black high temperature powder coating for temperatures up to 250C	316 °C	260 °C	“2 – 5	204°C for 10 mins	Medium heat resistance	Substrate: Cold Rolled Steel
						Excellent surface hardness at service temperature	Film thickness: 2.0 mils (50.8 µm)
						Excellent flow and product stability

High Temperature Powder Coatings: up to 300 °C

Product Description	Peak Temperature	Continuous Temperature	Gloss @ 60° (ASTM D523-14)	Salt Spray (ASTM B117/D1654)	Cure Schedule	Cure Schedule	Notable Benefits	Testing Conditions
1PL-630PC10 Series	Bright White High Temp	472°C	(TBD)	45-55	–	232°C for 30 mins	Enhanced charging and handling characteristics	Substrate: Cold Rolled Steel
							Provides good flow and leveling over a wide range of film thickness	Film thickness: 1.5-2.5 mils (38 – 64 μm)
							Designed to be more compatible and to reduce cross contamination with other coatings

Extreme High Temperature Powder Coatings: up to 550 °C

	Product Description	Peak Temperature	Continuous Temperature	Gloss 60° (ASTM D523-14)	Salt Spray (ASTM B117/D1654)	Cure Schedule	Notable Benefits	Testing Conditions
654-2199 Muffler Black	Smooth black high temp	537°C	471°C	12 – 18	240+ Hrs	232°C for 20 mins	High temperature resistance	Substrate: Cold Rolled Steel
Also sold as: PS-1000							Excellent application properties and film quality	Film thickness: 1.5-2.5 mils (38.1 – 63.5 μm)
							Excellent over-bake stability
1PC-654-2502	Satin jet black and smooth sheen with outstanding hardness.	538°C	426°C	25-35	–	232°C for 10 minutes	Exterior performance with UV stability	Substrate: Cold Rolled Steel (Q-panels)
Also sold as: I PS-800							Excellent over-bake stability	Film thickness: 1.5 – 2.5 mils (38.1 – 63.5 µm)
							Designed for reduced cross contamination risk
654-2154A Flat Black	A decorative flat black high temp powder coating	560°C	427°C	< 4	–	204°C for 15 minutes	Extended coverage per pound	Substrate: Cold Rolled Steel (Q-panels)
							Excellent over-bake stability	Film thickness: 1.5 – 2.5 mils (38.1 – 63.5 µm)
							Designed for reduced cross contamination risk

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