YH-9012A / B is two-component epoxy resin with low viscosity, good fluidity and good leveling. It has following characteristics: 1. Transparent: black liquid. 2. It's low viscosity, good fluidity and easily penetrate into the product gap; 3. It Can be cured at room temperature 25°C or medium temperature 4. After curing, It's high hardness, high gloss like crystal, and we can see the surface is smooth and no bubbles.