How FT Wax Optimizes Performance in Powder Coatings

Fischer-Tropsch (FT) wax enhances scratch resistance, flow, and surface finish in powder coatings. Learn how it works and why it’s preferred over traditional PE waxes.

As powder coatings continue to grow in popularity for their environmental benefits and performance efficiency, formulators are constantly looking for ways to enhance surface properties, optimize flow, and improve scratch resistance. One key ingredient that supports these objectives is Fischer-Tropsch wax, commonly known as FT wax.

FT wax is a synthetic wax that delivers outstanding surface performance in powder coating systems. In this article, we’ll explore how it functions, where it excels, and why it is often chosen over conventional polyethylene waxes.

What Is FT Wax?

Fischer-Tropsch wax is a type of synthetic wax produced via the Fischer-Tropsch process, where natural gas or coal is converted into hydrocarbons. FT wax has a:

• High melting point (often 100–110°C)

• Narrow molecular weight distribution

• Extremely linear structure

These properties make it especially suitable for thermal stability, hardness, and compatibility in high-performance powder coatings.

Benefits of FT Wax in Powder Coatings

1. Excellent Scratch and Abrasion Resistance
FT wax migrates to the surface during curing and forms a hard micro-layer that protects the coating from mechanical wear—ideal for automotive, metal furniture, and appliance coatings.

2. Smooth Flow and Leveling Control
FT wax helps regulate the melt flow of the coating during curing, preventing craters or pinholes. This ensures a smooth, even surface and enhances the overall finish.

3. Gloss Control and Matting
Depending on the particle size and dosage, FT wax can be used to reduce surface gloss, creating a matte or satin finish without the need for silica-based matting agents.

4. Anti-blocking and Clean Finish
It reduces surface tack and enhances anti-blocking behavior in stacked or packed powder-coated items, helping maintain surface cleanliness and appearance.

Applications in Powder Coating Segments

FT wax is widely used in:

• Architectural aluminum

• Appliances and white goods

• Metal furniture and shelves

• Bicycles and sports equipment

• General industrial finishes

Its superior surface performance and thermal resistance make it a go-to solution for demanding applications.

Formulation and Usage Guidelines

• Recommended dosage: 0.5%–2.0% by weight

• Add FT wax in the pre-mix phase before extrusion

• Choose the appropriate micron size based on finish requirements

  • <5μm for smooth/glossy

  • 5–9μm for matte or textured

• Compatible with epoxy, polyester, hybrid, and PU-based powder systems

FT wax can be used alone or in combination with PTFE or PE wax to balance slip, gloss, and anti-abrasion properties.

FT Wax vs. Polyethylene Wax

FT wax is preferred where precision performance and high durability are critical.

FT wax is a premium additive for powder coatings, delivering superior scratch resistance, surface smoothness, and gloss control. Its thermal and mechanical stability makes it ideal for high-performance, professional-grade coating systems.

Need a high-quality FT wax solution for your powder coatings? Contact us today to request samples or technical guidance tailored to your application.