Sand-Textured Wood Grain Powder

Surface Finish Options Overview

Sand-textured wood grain powder is a specialized powder coating designed to replicate the natural texture and appearance of wood while incorporating a sandy, matte finish. This product combines the aesthetic appeal of wood grain with the tactile and visual benefits of a sand-textured surface, making it ideal for applications where both beauty and functionality are required.

Coating Performance

Performance Parameter	Specification	Test Method
Pencil Hardness	≥ H	GB/T 6739
Impact Resistance	≥ 50 kg·cm	GB/T 1732
Bending Flexibility	≤ 2 mm	GB/T 6742
Adhesion	0-level	GB/T 9286
Cupping Depth	≥ 6 mm	GB/T 9753
Salt Spray Resistance	≥ 500 hours, ≥ Grade 9	GB/T 1771
Humidity Resistance	≥ 1000 hours, slight gloss reduction	GB/T 1740
Slip Resistance	Enhanced due to sand-textured surface	Visual/Tactile Assessment

Advantages

Realistic Wood Grain Appearance: Mimics the natural texture and color variations of wood, providing an aesthetically pleasing finish.Sandy, Matte Texture: Offers a unique tactile experience and reduces glare, making it suitable for applications where a non-reflective surface is desired.Durability: Excellent mechanical and chemical properties ensure long-lasting performance and resistance to wear, impact, and environmental factors.Versatility: Suitable for a wide range of substrates, including metals, plastics, and composites.Environmental Friendliness: Contains no organic solvents, reducing VOC emissions and contributing to a healthier environment.

Applications

Architectural Applications: Applied to door frames, window frames, curtain walls, and other architectural elements to create a natural wood-like appearance with enhanced slip resistance.Furniture Industry: Used on metal furniture surfaces to provide a warm, wooden aesthetic and a comfortable, non-slip grip.Home Appliances: Applied to the surfaces of refrigerators, washing machines, and other home appliances to enhance their aesthetic value and tactile appeal.Automotive Industry: Used for interior and exterior trim components, providing a luxurious, wood-like finish with improved grip and durability.Decorative Items: Applied to decorative items such as picture frames, sculptures, and ornaments to create a unique, textured appearance.

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.