Description CS-613FD is a water-based multi-purposed epoxy putty and adhesive. It is developed for filling seam, gap between Calcium Silicate board. It is environmentally friendly which does not pose health hazard to user and dwellers. The best part is how easy it can be cleaned with just water. It is easy to mix even by hand due to our innovative water-based technology. Features Paintable easily with wb coating Easy to use Smooth to tool with trowel Non-sagging Stronger adhesion High solid by volume; 100% water resistant when cured. Low odor VOC free / Solvent free Uses Gypsum boardCalcium silicate board Fiber cement board Plywood / Timber Concrete / Tile It may be suitable to use on other substrates not mentioned above. Application 1. The surface to be adhered must be free of dust, release agent, oil and grease 2. Mix part A and part B with 1: 1 (by volume), and stir until homogeneous as indicated by uniform color. 3. Do not stir or mix the two parts on the application surface.