Surface Active Agents (= surfactant) from HiTech Fluid Systems help lower the surface tension and/or the interfacial tension of the drilling fluid with other phases.

Here are product sheets and MSDS sheets for surface active agents for key chemicals.

Chemical	Product Sheet	MSDS Sheet
Activated Carbon (Charcoal)	Activated Carbon (Charcoal)	Activated Carbon (Charcoal)
Detergent L	Detergent L	Detergent L
Micro-Dyne	Micro-Dyne	Micro-Dyne