Spray painting – Matt paint

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Definition and Function

Matt paint is a type of surface finishing process. Using a spray gun and compressed air, the paint is atomized into fine mist particles and evenly applied to the workpiece surface, forming a smooth and non-glossy coating.
Its main function is to provide the workpiece with a low-reflective, delicate, and soft surface appearance, while offering certain protective and wear-resistant properties. It is widely used in the appearance finishing of smart devices, home appliance housings, electronic components, and automotive interior parts requiring a subtle and elegant texture.

Colors

Silver

Gold

Black

Green

Gray

Blue

Red

Champagne

Matt paint is suitable for all common colors. The finish presents soft tones with moderate color saturation and a delicate diffuse reflection effect.Common colors include black, white, gray, silver, gold, red, blue, green, brown, beige, pink, etc., meeting a wide range of aesthetic requirements.

Example of a bead-milled + anodized colored part

Technical Properties

Applicable Substrates	Edge and Burr Coverage	Surface Appearance	Adhesion	Abrasion Resistance	Weather Resistance	Film Thickness	Gloss
Metals, plastics, glass, wood, etc.	Good coverage, producing a uniform surface finish	Matt, semi-matt, or satin finish (10°–30° gloss)	Excellent, meeting ASTM D3359 4B–5B standards	Moderate to high, suitable for parts requiring scratch resistance	Excellent for indoor use; for outdoor applications, UV and aging resistance can be enhanced by formulation adjustment	Typically 20–40 μm	Soft reflection with stable tone and high-quality appearance

Applicable Materials

Metals: Aluminum Titanium

Plastic: ABS Polycarbonate (PC) Nylon Polypropylene (PP) POMPTFE (Teflon) PMMA (Acrylic) Polyethylene (PE) PEEK Bakelite FR4 Carbon Fiber

Process Characteristics

Applied by spray coating, resulting in uniform film thickness and excellent adhesion;

Low surface gloss (generally ≤30°, measured at 60° gloss angle);

Visually soft and smooth, without mirror reflection;

Requires a clean, dust-free spraying environment to avoid particles, bubbles, and sagging;

Can be combined with primer and intermediate coats to enhance flatness and durability;

Suitable for medium- to large-scale industrial production with stable process control and good recoatability.