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The difference between hydrophobicity and hydrophilicity in silica Dec 07, 2016

In the coating, silica can play the role of anti-precipitation and thixotropic agent.

In fact, hydrophilic silica can also be used in oil-based coatings, hydrophobic silica can also be used in the hydrophilic.

The difference between hydrophobicity and hydrophilicity in silica is mainly due to:

Hydrophobic, in the paint film can keep the paint surface dry, high-grade coatings generally use hydrophobic, especially in the metal substrate coating, this is basically add hydrophobic silica, you can keep the substrate is not Oxidation, so hydrophobic than the hydrophilic to be expensive.