Riteks VAE-RS powders are water redispersible vinyl acetate-ethylene copolymer powders that are readily dispersible in water and form stable emulsions to impart excellent fluid loss for fluids. These powders give enhanced gas migration control to cement slurries, with a minute effect on extending slurry set times. They help in reducing permeability with improved particle-to-particle bonding, improved cement durability during perforation and increased cement longevity. VAE-RS powders also provide improved adhesion, flexural and tensile strength, abrasion resistance, water retention, plasticity and workability.