Blendhouse has put together one of the most versatile and user friendly concrete bag mixes on the market today. The best concrete mix starts with using the best ingredients. The HB7 GFRC Series concrete bag mix can be used as 4 main types of concrete mixes: Face Coat Mixes - Backer Mixes - SCC / Self Consolidating Mixes - Hand Troweled Mixes. You will achieve these mixes simply by adjusting the amount of plasticizer added to the mix. Other applications for Blendhouse bag mixes include: concrete countertop mix, concrete sink mix, concrete table mix, concrete wall panel mix, precast concrete mix, cast in place concrete mix, GFRC bag mix, high strength concrete bag mix.