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High Whiteness & High Transparency Flexible Composite Silica Powder

This product is a soft composite silica micro-powder with high whiteness and transparency, prepared by special processes. It features excellent light scattering, low oil absorption, and good dispersibility, suitable for high-end coatings, plastics, cosmetics, electronic packaging, and optical materials with strict requirements for color and light transmittance.

With low hardness and low wear characteristics, the product reduces processing equipment loss. It also has excellent chemical stability, suitable for various resin systems (such as epoxy, silicone, PU, etc.).

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Product Description

Product Description

This product is a soft composite silica micro-powder with high whiteness and transparency, prepared by special processes. It features excellent light scattering, low oil absorption, and good dispersibility, suitable for high-end coatings, plastics, cosmetics, electronic packaging, and optical materials with strict requirements for color and light transmittance.

With low hardness and low wear characteristics, the product reduces processing equipment loss. It also has excellent chemical stability, suitable for various resin systems (such as epoxy, silicone, PU, etc.).

Application Areas

High-End Coatings: Enhances coating whiteness, transparency, and weather resistance, suitable for automotive paints and UV-curable coatings.
Plastic Modification: Used in transparent plastics like PC and PMMA to enhance light transmittance and reduce haze.
Cosmetics: Serves as a mild abrasive or optical (optical modifying) powder to improve product texture.
Electronic Packaging: Applied in LED and semiconductor packaging materials to optimize light diffusion performance.
Optical Materials: Suitable as filler for optical films such as light guide plates and diffusion films.

Product Advantages

Ultra-High Whiteness & Transmittance-Ensures pure color and excellent optical performance.
Soft & Low Wear-Reduces wear on processing equipment and extends service life.
Excellent Dispersibility-Easily mixed with resins and solvents to prevent agglomeration.
Chemical Inertness-Acid/alkali resistant, suitable for harsh environments.
Customizable Particle Size-Adjusts particle size distribution according to customer needs.

Packaging & Storage

Packaging: 25kg/bag (customizable).
Storage: Store in a cool, dry place, avoiding moisture and high temperatures.

Applicable Industry Standards

Compliant with RoHS/REACH.
Certified by ISO 9001 quality management system.

Why Choose Us?

Professional Customization: Adjusts whiteness, particle size, and surface treatment based on customer requirements.
Stable Supply: Large-scale production ensures batch consistency.
Technical Support: Provides optimization suggestions for application solutions.

Project	Unit	Typical values
Appearance	/	White powder
Density	kg/m3	2.59×103
Mohs hardness	/	five
Dielectric constant	/	5.0（1MHz）
Dielectric loss	/	0.003（1MHz）
Linear expansion coefficient	1/K	3.8×10-6

Soft composite silicon micro powder can be classified into specifications and matched according to customer requirements based on the following characteristics:

Project	Related indicators	Explain
Chemical Composition	SiO2 content, etc	Having a stable chemical composition to ensure consistent performance
Ion Impurity	Na+, Cl -, etc	Can be as low as 5ppm or below
Particle Size Distribution	D50	D50=0.5-10 µ m optional
Particle Size Distribution	Particle size distribution	Adjustments can be made based on typical distributions as required, including multimodal distributions, narrow distributions, etc
Surface Characteristics	Hydrophobicity, oil absorption value, etc	Different functional treatment agents can be selected according to customer requirements