Rubbed Black Bronze Powder Coating

Surface Finish Options Overview

RUBBED BLACK BRONZE (Ultra Durable)

A single stage, flat black bronze metallic with superior UV & chemical resistance. This coating contains a faint amount of bronze metallic, just enough to give off a sheen at certain angles while mostly looking black. This is also a custom formulation and considered a high-performance coating meeting the AAMA 2604 performance requirements for a 5-year minimum UV & weatherability rating. This special formulation is also highly resistant to many corrosive chemicals, making it a recommended product for automotive, industrial, and commercial markets.

This Urethane, Acrylic formulation is compatible with other products and will not contaminate any other coating(s).

Outdoor WeatherabilityTesting: Coatings must withstand at least 5-years of outdoor exposure in South Florida or similar conditions.Performance: Coatings must maintain their color and gloss, and resist chalking, fading, and weathering, lasting for years despite exposure to intense sunlight and weather.

Chemical ResistanceDetergent Immersion (Test) = PassMuriatic Acid (Test) = PassWindow Cleaner (Test) = PassNitric Acid (Test) = PassMortar (Test) = Pass

Appearance: Smooth, MetallicGloss: 0 - 5% @ 60°Interior/Exterior (UV Protection)Excellent chemical resistanceSalt Spray: 3,000 hours pass (ASTM B-117)Humidity Resistance: 3,000 hours pass (ASTM D-1735)Recommended Bake: 15 Minutes @ 390°F Metal TemperatureTypical Application: Decorative finishes, patio & furniture, store fronts, automotive, handrails, extrusions, etc.

FAQ

1. What is Powder Coating?

Powder coating is a dry finishing process used to apply a protective and decorative coating on metal or other surfaces. Instead of using liquid paint, fine powder particles (usually made of polyester, epoxy, or hybrid resins) are electrostatically charged and sprayed onto a conductive surface. The coated object is then baked in an oven, where the powder melts, flows, and cures into a smooth, durable finish.

Key features:

Durable, hard finish

Resistant to scratches, corrosion, and UV

Environmentally friendly (no VOCs)

2. Benefits of Powder Coating

Powder coating offers several advantages over traditional liquid painting:

Durability: Resistant to chipping, scratching, fading, and wear.

Corrosion Protection: Provides excellent protection against rust and chemicals.

Environmentally Friendly: No volatile organic compounds (VOCs) and minimal waste.

Efficiency: Overspray can be collected and reused, up to 99% material utilization.

Uniform Finish: Smooth, even coating without runs or drips.

Cost-Effective: Single-coat systems can achieve high film thickness, reducing labor and energy.

Aesthetic Variety: Wide range of colors, textures, and effects.

3. What Temperature to Cure Powder Coating

The curing temperature depends on the type of powder used:

Epoxy powder: ~160–200°C (320–392°F)

Polyester powder: ~180–210°C (356–410°F)

Hybrid (Epoxy-Polyester) powder: ~180–200°C (356–392°F)

Typical curing time: 10–20 minutes depending on thickness and oven type.

Always follow the powder manufacturer’s specifications for best results.

4. Process for Powder Coating

The powder coating process usually follows these steps:

Surface Preparation:

Clean the surface thoroughly (remove oil, grease, rust, or dirt)

Methods: chemical cleaning, sandblasting, or phosphating

Pre-Treatment:

Apply a conversion coating or primer if needed to improve adhesion

Powder Application:

Spray the powder using an electrostatic spray gun or fluidized bed

Curing:

Bake the coated object in an oven at the recommended temperature for the powder type

The powder melts and forms a continuous, smooth film

Cooling & Inspection:

Let the coated item cool

Inspect for defects, uniform coverage, and desired thickness

5. How to Spray Powder Coat

Equipment Needed:

Electrostatic spray gun

Compressed air supply

Powder feed hopper or container

Grounding of the object

Steps:

Ground the object: Ensures the charged powder is attracted to the surface.

Spray evenly: Hold the gun 6–12 inches from the surface, moving in smooth, overlapping strokes.

Apply sufficient powder: Ensure full coverage without excessive buildup.

Cure immediately: Transfer the sprayed item to the curing oven to fuse the powder into a solid coating.

Tips:

Maintain consistent speed and distance while spraying.

Use proper ventilation to reduce airborne powder accumulation.

Test a small area to check film thickness and color before full application.