Painting Raw Steel

Single Coat Painting: Quick and Easy Method

If you're looking for a straightforward approach to painting raw steel legs, one-coat metal paints like Hammerite Direct-to-Metal are an excellent option.

Why Choose Single Coat Paints?

• Minimal Preparation: These paints adhere well to steel with minimal prep work. They can even be applied directly over light rust.

• Durable and Versatile: They are suitable for both indoor and outdoor use, providing long-lasting protection against rust and wear.

• Time-Saving: With no need for primers or multiple coats, the process is quick and efficient.

Steps to Apply:

1. Clean the Surface:

   • Remove dirt, grease, and loose rust using a cloth or wire brush.

   • Degreasing isn’t always necessary but will improve adhesion and finish.

2. Apply the Paint:

   • Use a brush, roller, or spray for application.

   • Ensure even coverage in a single coat to avoid drips or thick patches.

3. Cure:

   • Allow the paint to dry as per the manufacturer’s instructions, typically 4–6 hours for touch dry and up to 24 hours for full curing.

Downsides Compared to Multi-Coat Methods:

• Slightly Less Professional Finish: One-coat paints may lack the smooth, refined appearance achieved with primer and topcoat layers.

• Limited Color Choices: These paints usually offer fewer options than automotive or multi-layer systems.

Multi Coat

Preparation

• Clean the Surface:

  • Use WD-40 and a green scouring pad to remove dirt, grease, and rust.

  • Wipe the legs thoroughly with a clean rag, then degrease using acetone or a similar product to ensure a clean surface.

Priming

• Zinc-Based Etch Primer:

  • Apply a zinc-based or acid etch primer designed for metal. These primers bond well to bare steel and provide excellent adhesion for the topcoat.

  • Use thin, even coats to avoid drips or runs.

  • Let the primer cure fully, typically 24 hours or as recommended by the manufacturer.

Top Coat

• Automotive Spray Paint:

  • Use a high-quality single-part (1k) automotive paint in a spray can.

  • Apply 2–3 thin, even coats. Allow each coat to dry completely before applying the next (typically a few hours).

Optional Clear Coat

• Protective Lacquer:

  • For added durability and a glossy finish, apply a clear lacquer over the topcoat.

  • Use 1–2 thin coats, letting it dry thoroughly between applications.

  • This step is especially recommended for outdoor furniture or high-use items.

Curing

• Allow the painted legs to cure for 24–48 hours before installation or heavy handling.

Tips for Success

• Environment: Paint in a well-ventilated area with minimal dust. Ideal temperatures are between 10°C and 25°C.

• Spraying Technique: Hold the can about 20–30 cm away from the surface and use smooth, sweeping motions.

• Touch-Up: Keep extra paint on hand for touch-ups in case of chips or scratches.