UL Prospector

Surface Active Agents (Surfactants) 


Marc Hirsch

The word “Surfactant” is a contraction of the three words “Surface Active Agents.” Surfactants are materials that lower the surface tension (or interfacial tension) between two liquids or between a liquid and a solid. In this article, coatings expert Marc Hirsch describes the four different types of surfactants: nonionic surfactants, anionic surfactant, cationic surfactants and zwitterionic surfactants.




Marc Hirsch is a renowned industry expert with extensive experience in the field of paints and coatings. He works as a senior scientist at M&M Hirsch & Associates, LLC, which involves problem-solving, mentoring, consultation, and the formulation and facilitation of projects.