Riteks RFL-4 is a fluid loss additive is that is easily dispersed and dissolved to produce solutions of varying viscosities. RFL-4 is used as a viscosifying fluid loss additive that provides consistent results, viscosity, water retention, and has great suspension qualities. Riteks RFL-4 is a free-flowing, granular powder that dissolves readily in water to give clear, smooth solutions, which exhibit a pseudoplastic flow behavior.

Riteks RFL-4 is ideal for circulating long columns of cement slurry on
primary casing jobs and for deep liner cementing. It helps maintain
fluidity, eliminate premature dehydration, and prevent annular bridging in
a tight annulus when cementing is performed form 80°F to 360°F. Riteks
RFL-4 is compatible with most additives used in cementing, and also
helps provide good frictional properties during displacement