POR-15 High Temperature Paint - Heat Resistant Flat Black

In this review of POR-15 High Temperature Paint the bottom line is straightforward: this 32 fluid ounce flat black coating is aimed at DIYers and professionals who need a durable, heat-resistant finish for metal parts exposed to extreme temperatures. The reviewer found it best for exhaust manifolds, stove and fireplace components, and other steel surfaces that see regular thermal cycling, because it withstands up to 1200F and resists cracking, chipping, and peeling when applied to properly prepared metal.

Key Features

• Extreme heat tolerance: The coating resists temperatures up to 1200F, making it suitable for engine and exhaust components without burning off.
• Durable corrosion resistance: It provides a tough finish that protects metal against weather, salt, and moisture for long-term use.
• Good weathering and thermal shock resistance: Properly cured films resist mild industrial fumes and tolerate rapid temperature changes.
• Surface prep guidance: The formula requires clean, bare metal and recommends roughening glossy surfaces with 320 grit before recoating for best adhesion.
• Practical cure instructions: Allow 24 hours cure before exposing to over 300F to ensure the finish reaches full heat resistance.

Who It's For

This product is ideal for automotive enthusiasts, mechanics, and homeowners who need to refinish metal parts exposed to high heat, such as exhaust manifolds, headers, stove parts, and fireplace screens. It suits users who can follow the surface preparation and curing instructions to get a durable result.

Those who want a fast, no-prep cosmetic spray for plastic or poorly cleaned surfaces should look elsewhere, since POR-15 requires clean, bare metal and some surface preparation to perform as intended.

Pros & Cons

Pros

• High temperature capability up to 1200F protects components exposed to extreme heat.
• Creates a tough, corrosion-resistant finish that stands up to weather, salt, and moisture.
• Customers report good color quality and an improved appearance on exhaust parts and stove components.

Cons

• Surface prep is required and improper cleaning will reduce adhesion and longevity.
• Some users note an unpleasant smell during application and curing, so ventilation is important.

Specifications

Our Verdict

POR-15 High Temperature Paint is a solid choice for anyone who needs a long-lasting, heat-resistant finish on metal parts and who will follow the recommended prep and cure steps. It delivers excellent heat and weather resistance and produces a professional-looking flat black result, offering good value for projects where durability and color retention under heat are important.

Frequently Asked Questions

Can this be used on exhaust manifolds?
Yes, customers have used it successfully on exhaust manifolds and similar high-heat engine parts when proper surface prep is performed.

How long before the coating can see high temperatures?
Allow 24 hours of cure on the surface and do not raise temperature above 300F until after that time for full cure performance.

Does it resist weather and moisture?
Yes, the coating is formulated to resist weather, salt, and moisture once properly applied and cured.