Anti-blocking Nano Silica Dispersion CAS 7631-86-9 is stable aqueous silica dispersion. Uniform nano silica particles form micro uneven structure on the coating surface of plastic films to achieve outstanding anti-blocking performance. It is a professional functional additive for plastic film surface coating.

Product Detail

Anti-blocking Nano Silica Dispersion CAS 7631-86-9 for Plastic Film Surface Coating

Product Overview

Anti-blocking Nano Silica Dispersion CAS 7631-86-9 is a stable water-based nano silica dispersion. Evenly distributed nano SiO₂ particles form micro concave-convex structure on plastic film coating surface, effectively reducing adhesion between film layers and delivering excellent anti-blocking capacity. The product enjoys great compatibility with waterborne coating systems, stable dispersion, and limited negative impact on coating transparency. It is a dedicated anti-blocking functional additive for plastic film surface coating.

Core Features

Outstanding Anti-blocking Effect: Build micro rough surface to avoid film blocking during rolling, stacking and storage.
Stable Aqueous Dispersion: Nano silica particles resist agglomeration and maintain good stability during long-term storage.
High Transparency: Minimal influence on light transmittance and clarity of transparent plastic films.
Wide Resin Compatibility: Compatible with waterborne acrylic emulsion, polyurethane and other common binders.
Optimized Surface Slippage: Properly improve surface lubricity and facilitate film winding and subsequent processing.
Water-based Eco-friendly Formula: Low VOC, satisfies environmental requirements of film coating production.

Product Specifications

Product Name: Anti-blocking Nano Silica Dispersion

CAS No: 7631-86-9

Appearance: Translucent homogeneous liquid

Active Ingredient: Nano Silicon Dioxide

Core Function: Anti-blocking, surface slip modification

Main Application: Plastic film surface coating

Applicable Materials: Water-based coating systems for BOPP, PET, PE, PVC and other plastic films

Application Scope

This anti-blocking nano silica dispersion is widely applied in plastic film surface coating industry. It fits packaging film coating, printing base film coating, optical protective film coating, food-contact film surface treatment and other fields. It solves blocking trouble of rolled films under stacking pressure and ensures continuous production and post-processing performance of plastic films.

Usage Guide

Stir evenly before application. Slowly add the nano silica dispersion into coating liquid under low-speed stirring and keep homogeneous mixing. Avoid excessive high-speed stirring, which may lead to viscosity rise or gelation. Seal container tightly after use to prevent water evaporation and particle agglomeration.

Packaging & Storage

Packaging: 25kg plastic drum, IBC tank, customized packaging supported

Storage: Store in cool and ventilated warehouse, keep away from freezing and direct strong sunlight

Shelf Life: 6 months under sealed normal temperature storage

Our Advantages

Our anti-blocking nano silica dispersion adopts controllable particle size technology to balance anti-blocking property and transparency. It avoids common defects such as increased haze caused by traditional anti-block additives. Stable batch indicators and easy formula adjustment. Factory direct supply with sufficient inventory and fast delivery. Free test samples and coating process suggestions can be provided for film manufacturers.

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