Parex Micro Gobetis 3000 20kgA bonding coat for low or high porosity surfaces such as concrete, lightweight blockwork, bricks etc. It improves the adhesion for one coat render systems. Micro Gobetis 3000 is a bonding coat for low or high porosity surfaces such as concrete, lightweight blockwork, bricks etc. It improves the adhesion for one coat render systems and minimises the risk of air pockets occurring in the application of one coat render systems. Applied by roller or brush,