Lifestyle / Painting / Wetting Agent: A liquid to be added in small amounts to water-colour to reduce the surface tension and thus increase the flow of the colours. Oxgall has been the traditional agent, but now synthetic preparations aki MORE
Entertainment / Photography / Wetting Agents: Are chemicals which, when used in minute quantities, reduce the surface tension of water. They are usually added to the final wash of films and plates to improve draining. MORE