What to Know About the Lechler Brand

Founded in 1858, Lechler is an Italian brand known for producing high-end products for the automotive paint industry. Renowned for its expertise, the company relies on advanced technologies to offer solutions that are high-performing, visually appealing, and long-lasting. With a presence in over 65 countries, Lechler supports body shop professionals with a wide range of premium paints, clearcoats, and hardeners.

The Different Types of Lechler Hardeners

Hardeners are used in combination with paint, clearcoat, or primer. They speed up drying time, improve resistance to impact and weather, and help ensure a smooth, high-quality finish. They are especially recommended for matte finishes or vehicles exposed to harsh outdoor conditions.

Lechler offers three main types of hardeners:

• Fast hardener – Best for small surfaces or colder conditions.

• Standard hardener – Suitable for typical applications at ambient temperatures (around 20 °C).

• Slow hardener – Ideal for large surfaces or work in warmer environments.

How to Choose the Right Lechler Hardener

Several factors influence which hardener to use:

• Thickness of the coating

• Desired drying time

• Type of surface (plastic, metal, fiberglass, etc.)

• Porosity of the substrate

• Final finish required

• Ambient temperature at the time of application

If you're unsure, the ColorBox team can guide you to the most suitable product for your project.

Who Should Use Lechler Hardeners?

Lechler hardeners are intended for professional use only. Their application requires experience in auto refinishing and strict adherence to safety protocols. When handling these products:

• Wear protective gear: goggles, 3M 06942 mask, and nitrile gloves

• Avoid inhaling fumes; work in a well-ventilated area

• Keep away from heat sources and never smoke during application

• Avoid contact with skin and eyes; wash hands thoroughly after use

• Dispose of leftover product responsibly using approved waste containers

Tips for Using Your Lechler Hardener

• Thoroughly clean and degrease the surface. Treat any rust before starting.

• Follow the mixing ratios provided in the technical sheet (often 2 parts paint to 1 part hardener).

• Mix slowly and evenly to avoid lumps and ensure a smooth, uniform texture.

Lechler hardeners are easy to apply and deliver a clean, professional result from the first coat. No complicated prep is required — they’re ready to use as soon as the mix is complete.

Trust ColorBox

ColorBox offers a wide selection of Lechler hardeners, all available from stock. Our experienced team responds quickly to your requests, provides expert product guidance, and guarantees competitive prices. Free shipping is available for orders over €500 (excl. VAT).

Top Lechler Hardeners Preferred by Body Shops on ColorBox

• Mégalack ML900 Hardener → For use with Mégalack ML920 Clearcoat

• MH120 Hardener → For use with Macrofan MF306 Primer