Texture Additive: Gives Ordinary Surfaces a Matte Texture

Texturing additive creates a matte feel and matte effect through physical filling, making it suitable for applications in wood, electronics, and industrial coatings. The dosage must be tailored to the particle size (2–8%), and the dispersion process avoids high-temperature grinding. Future efforts will focus on bio-based materials and customized textures to elevate coating textures.

— A "Texture Designer" for the Tactile and Visual Appearance of Coatings

Texture additive is a white or black micropowdered coating additive primarily composed of polyethylene, polypropylene, or polyamide crystals. Its average particle size ranges from 5–150 μm (available in various grades), with a density of approximately 0.95 g/cm³ and a melting point of 150°C or higher. It exhibits high dispersibility and temperature resistance (155–280°C). This material modifies the coating's surface structure, imparting a frosted, three-dimensional feel and a matte appearance while also improving scratch and abrasion resistance.

Powder particles are evenly dispersed in the coating, forming tiny bumps after curing, creating a fine or rough matte feel and reducing surface slip.

Reduces light reflection, creating a matte effect, concealing scratches or unevenness on the substrate, and enhancing the product's appearance and quality.

Increasing coating hardness through physical filling, and combined with a resin system, it enhances corrosion resistance (such as salt spray resistance) and chemical resistance.

Requirement: Solid wood furniture and flooring require a non-slip feel and a matte finish.

Solution: Add fine grain graining powder (15–25μm) to create a fine texture while preserving the natural texture of the wood.

Requirement: Mobile phone cases and headphone holders require fingerprint resistance and a pleasant touch.

Solution: Medium-sized grains (30–50μm) combined with resin achieve a balance of wear resistance and a matte finish.

Requirement: Security doors and distribution cabinets require concealing substrate defects and corrosion resistance.

Solution: Coarse grained sanding powder (80–100 μm) is used in powder coatings to create a three-dimensional sanding pattern and enhance protective properties.

Requirement: Cigarette labels and gift boxes require a tactile feel.

Solution: Add 3–5% sanding powder to the ink to achieve a localized matte effect.

The recommended dosage is 2–8%. Smaller particle sizes require a lower dosage (e.g., 3–5% for fine sanding and 6–8% for coarse sanding). Excessive dosage can increase coating brittleness.

Stir at medium speed for 10–15 minutes. Avoid grinding or high-temperature treatment (to avoid damaging the crystal structure).

Water-based systems require pre-dispersion to prevent precipitation, while oil-based systems require matching solvent polarity.

Metal surfaces require degreasing to prevent chipping, while plastic parts require corona treatment to improve adhesion.

For high-temperature applications (such as automotive wheels), select models resistant to 280°C.

Bio-based graining powders (such as modified plant waxes) replace traditional petroleum-based crystals, reducing carbon emissions.

Multi-layered tactile properties are achieved through particle size mixing (e.g., 5μm + 100μm), making them suitable for furniture and electronics.

3D printing coatings combined with graining powders enable direct creation of complex textured parts, reducing post-painting steps.