Silicon Dioxide Powder As Hardener For Clear Paint

Feature

Silicon dioxide powder, also known as silica, can indeed be used as a hardener for clear paint. Silica is a 

commonly used additive in various coatings and paints due to its unique properties.

When added to clear paint formulations, silica acts as a reinforcing agent, increasing the hardness and durability 

of the paint film. It can improve scratch resistance, abrasion resistance, and overall mechanical strength. 

Additionally, silica can enhance the clarity and gloss of the paint, providing a smooth and shiny finish.

Silica Powder can be incorporated into the paint formulation during the manufacturing process. The amount of silica 

used will depend on the desired level of hardness and other performance requirements. It is important to follow the 

manufacturer's instructions and guidelines to ensure proper incorporation and dispersion of the silica powder.

It is worth noting that while silica can enhance the performance of clear paint, it may also affect other properties such 

as flexibility and impact resistance. Therefore, it is essential to carefully consider the specific requirements of the paint 

application and conduct thorough testing to ensure the desired balance of properties is achieved.

Overall, silicon dioxide powder can be an effective hardener for clear paint, providing improved hardness, durability, and 

aesthetic qualities.

Advantages

1) Can reduce the gloss of PES/TGIC powder coating to 30 % without significantly damaging to the weather-resistance,

flow and mechanical properties. The moderate gloss coatings usually are application to lighting fixture, appliances, air 

conditioner and office partitions and automobile parts.

2) Be enable to use in other coating systems such as pure epoxy and epoxy/polyester hybrid to provide these systems with 

semi-gloss, smooth appearance and good non-yellowing properties.

3) This product belongs to adding type-Matting Agent without taking part in chemical reactions; thus the special design for 

coating formulation is unnecessary. You are only selective for adding it at the premix stage of powder coatings. Varying its 

added amount or selecting proper filler can adjust the gloss levels of the resultant coating, but the variable ranges usually 

are limited.

4) May be as a modifier to improving coating surface hardness and anti-mar properties when desired at less than 1.0% based 

on total formulation.

Suggested Formulations

PES/TGIC system (pale gray)

Epoxy/Polyester hybrid system (white)

GH2203, GH2204- Both products of from P,R China

Black powder

May be waxy releaser in surface of coatings with black color.

Storage

Store in cool and dry place to avoid caking. Keep away from heat and fire.

Package

Package with PE lined kraft paper bags. Net weight 20kgs per bag.

Anticorrosion Pigments, 

Inkjet Receptive Coating, 

Matting Agent