Смачиватели

Wetting agent is a surfactant that reduces the gas–liquid surface tension of a liquid, causing the liquid to spread across or penetrate more easily the surface of a solid either clean or dirty. Several wetting agents are mentioned in the literature: distilled water, ethanol, mixtures of water and ethanol, isopropanol (pure or diluted in ligroin, water or acetone), water with polyethylene glycol (20) sorbitan monolaurate (Polysorbate 20 or Tween 20), diethylene glycol in white spirit and diluted ammonia solution. Research has shown that using wetting agents leads to a more efficient cleaning and keeps the surface temperature lower, thus being safer for the substrate.