... smoothening, excellent bonding, mildew resistant, good sealing and fine quali JOINT MASTERSpecialize in Anti-cracking on Jointing and sealing ... bonding, water resistant, mildew resistant, good sealing and fine quality.The product is certified by SGS tests, and ... same or different materials, such as woods, plasterboards, calcium silicate boards, and walls to prevent the cracking. Apply to repairing ...