Riteks RCR-800 is a non-lignin cement retarder capable of retarding cement at temperatures between 80 - 220°F (20 - 105°C). This material is non-dispersing and is compatible in a wide range of additive combinations in API cements.
Riteks RCR-200 is very linear lignosulfonate blend cement retarder that can be used to retard all API classes of cement as well as Pozz-Cement. RCR-200 retarder is effective in wells with bottom-hole circulating temperatures (BHCTs) up to 220°F (104.4°C). It can also withstand static temperatures up to 260°F (126.7°C). RCR-200 is particularly useful in cements containing high gel percentages, and increased concentrations of RCR-200 enhance the predictability of cement thickening times.