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Precipitated Silica in Paints and Coating
Product:Precipitated silica(SiO2) for paint as Filler and Thickener
Item No.:JS-280
CAS. NO.:7631-86-9
Delivery time:15 days after receipt of your payment
HS CODE:281122
Unlocking the Potential of Precipitated Silica in Paints: Enhanced Performance and Efficiency
Introduction: In the realm of paint and coatings, the quest for exceptional performance and durability is unrelenting. Precipitated Silica, with its remarkable thixotropic properties, stands out as a key additive that can significantly enhance the functionality and application of paints. This article explores the transformative impact of Precipitated Silica in various paint applications, offering insights into how it optimizes performance and extends the capabilities of paint formulations.

Specification:
JS-280
|
Test Methods |
Properties |
Units |
Target Values (Spec Limits) |
Actual Values |
|
HG/T3065-2008 |
Loss on drying (2Hrs,105℃)加热减量 |
% |
Max.5.5 |
4.85 |
|
HG/T3066-2008 |
Ignition loss 1000℃ 灼烧减量 |
% |
Max.7.0 |
3.96 |
|
HG/T3072-2008 |
DBP absorption value DBP吸收值 |
cm3/g |
3.1-3.5 |
3.20 |
|
HG/T3067-2008 |
pH value (10%aqueous suspension) pH值 |
- |
6.0-8.0 |
6.77 |
|
HG/T3062-2008 |
SiO2 (Dry Basis) 二氧化硅(干基) |
% |
Min.98 |
98.1 |
|
HG/T3073-1999 |
BET specific surface area BET比表面积 |
m2/g |
260-300 |
282 |
|
|
Soluble salt (Na2SO4) 可溶性盐 |
% |
Max.0.5 |
0.26 |
The role of precipitated silica in Coatings:
Thixotropic Properties: A Game Changer
Precipitated Silica's thixotropic nature is a game changer in paint technology. By incorporating small quantities of this silica into paint, the formulation gains a viscosity that varies with shear rate, effectively eliminating the settlement of pigments and the associated dripping and sagging issues.
Vertical Surface Application Excellence
In vertical surface applications, such as in unsaturated polyester coatings, the addition of just 0.5 to 2% Precipitated Silica can prevent drips and wrinkle when applying substantial amounts, up to 500g/m2 per coat. This ensures a smooth and even finish, which is crucial for maintaining both aesthetic appeal and protective qualities.
Enhanced Pigment Performance
The integration of Precipitated Silica into pigments not only prevents sedimentation but also enhances the adsorption capacity for pigments and dyes, improving dispersion. This leads to a more uniform color distribution and a higher quality finish.
Improved Heat Stability in Emulsion Coatings
When used as a filler in emulsion coatings, Precipitated Silica significantly boosts the heat stability of the paint. This improvement is vital for applications where the paint is exposed to high temperatures, ensuring the paint's durability and longevity.
Optimizing Paint Rheology
By adjusting the rheological properties of paint with Precipitated Silica, formulators can achieve a balance that facilitates ease of application while maintaining the paint's structural integrity once applied. This balance is essential for coatings that require both workability and resistance to deformation.
Incorporating Precipitated Silica into paint formulations is more than just an enhancement; it's a strategic move towards superior paint performance. Its ability to improve application, prevent sedimentation, and enhance heat stability makes it an invaluable component in the paint industry.
Elevate your paint's performance with the addition of Precipitated Silica. Experience the difference it makes in application, finish, and longevity. For paint formulations that perform under pressure and look great doing it, choose Precipitated Silica.
About Precipitated Silica: This powerful additive is the silent workhorse of the paint industry, quietly ensuring that every application is smooth, every finish is even, and every coat stands the test of time. Precipitated Silica is the key to unlocking your paint's full potential.
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