Technical term

Hydrophobic behaviour

Hydrophobic behaviour describes a surface's ability to repel water. The AVP glossary explains the term through materials, application and practical limits.

Surface science & materials

What does Hydrophobic behaviour mean?

Hydrophobic behaviour describes a surface's ability to repel water.

Related terms

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Washing methods & exterior care

Beading behaviour

Beading behaviour describes how a surface repels water. Hydrophobic protection creates rounded droplets and can improve cleaning efficiency and dirt repellency.

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Washing methods & exterior care

Beading

Beading is the formation of rounded water droplets on a hydrophobic surface. It is a visible characteristic of water-repellent protection and can make cleaning easier.

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Sealants & protective coatings

Sealant protection

Sealants protect surfaces against UV exposure, chemicals, water and dirt.

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Frequently asked questions

Questions about Hydrophobic behaviour

What is hydrophobicity?

Hydrophobicity describes a surface's water-repellent property.

How can hydrophobicity be recognised?

Typical signs are rounded droplets and rapid water run-off. The behaviour also depends on cleanliness and surface structure.

What creates hydrophobicity?

Waxes, synthetic sealants and ceramic coatings can reduce a surface's wettability.

How long does hydrophobicity last?

It depends on product, preparation, use, washing, maintenance and contamination. Reduced beading alone does not prove that all protection is gone.

Why is hydrophobicity useful?

It can support water run-off, cleaning and dirt repellency and is a visible characteristic of many protection systems.