The wettability of a material is its tendency to make liquids spread out over its surface. It is very important for procedures such as coating and bonding, in which an adhesive has to form the largest possible area of contact to maximize adhesion. When the liquid is water, hydrophilicity is the more commonly used term.

Wettability is a direct function of surface energy. As a general rule, the higher the surface energy of a material, the more the liquid will spread out over the surface. Plasma activation increases wettability by raising the surface energy of almost any material.

Wettability can be quantified by measuring the contact angle of a droplet. When contact angles are below 90°, that is generally good enough for most technical applications.

Plasma Services

Learn About Thierry's Plasma Services Read More

Connect With Thierry

Do you have questions or comments for us?  Send us an email or request a call back and a Thierry representative will get back with you as soon as possible.

Contact Us