With origins in aerospace technology—including coatings first developed for the X-30 Space Plane fuselage—Tech Line Coatings has spent more than 30 years perfecting high-performance surface solutions for automotive, industrial, and commercial use. Headquartered in Tennessee, the company now works with a global network of over 1,000 applicators.

The brand is recognised for its thin-film ceramic coatings, which withstand extreme heat (up to 2,000 °F / 1,093 °C) while offering thermal management, corrosion resistance, lubrication, and striking aesthetics. The product portfolio ranges from CermaKrome metallic finishes to thermal dispersants and powder coatings.

Spotlight: Black Satin™ (Part #BHK)
Black Satin™ is widely regarded as Tech Line’s flagship product. This ceramic-reinforced, satin-black coating is purpose-built for the toughest exhaust environments.

• Extreme Temperature Resistance – Survives substrate temperatures exceeding 2,000 °F, with long-term stability up to around 1,600 °F.

• Thermal Barrier Performance – Reduces radiant heat, lowers under-bonnet temperatures, improves exhaust gas velocity, and can contribute to gains in horsepower and torque.

• Tuning Aid – Shifts in colour with temperature provide a visual guide to heat levels, a useful aid for engine tuning.

• Flexible Application and Curing – Can be air-dried and cured using exhaust heat, or oven-cured at 700–750 °F for one hour to achieve maximum resistance to chemicals, moisture, and corrosion.

• Durable and Reliable – Delivers outstanding adhesion (ASTM tape test 5B), pencil hardness of 8+, and retains flexibility to endure thermal cycling and shock.

Application Guide

• Preparation – Grit-blast with 120-grit aluminium oxide (avoid glass bead). Clean thoroughly with acetone or lacquer thinner.

• Coating – Apply one thin layer (0.001–0.0015″) with spray equipment. Multiple passes can weaken adhesion.

• Curing – Allow to air-dry before curing with exhaust heat or oven per recommendations (500 °F for partial cure, 700+ °F for full cure).

• Caution – Initial high exhaust temperatures can affect the resin, so ensure engine tuning is correct beforehand.

• Compatibility – Can be applied over base coatings such as PrevCor, MCS, or HHBK for improved thermal and corrosion protection.

Why Black Satin™?

• Performance – Reduces radiant heat for measurable improvements in efficiency.

• Durability – Provides long-lasting resistance to salt, water, fuel, and solvents—particularly when fully cured.

• Visual Appeal – Delivers a classic satin-black finish with functional thermal benefits.

• Proven Reliability – Used by OEMs, industrial clients, and performance specialists worldwide.

Availability
Black Satin™ comes in sizes from 4 oz tins—ideal for small jobs like short headers—to gallon cans for professional use. It is supplied spray-ready, requiring no thinning. Simply shake, spray, cure, and it’s ready to perform.

Conclusion
Tech Line Coatings combines aerospace heritage with decades of automotive expertise, setting new standards in ceramic thin-film technology. Black Satin™ exemplifies this, offering extreme heat resistance, corrosion protection, improved performance, and a refined satin finish. Whether for headers, turbos, or display pieces, it provides the ideal balance of durability, practicality, and style.