Grout epoxy resin is a type of two-part adhesive made from a mixture of epoxy resin and hardener. It is commonly used as a filler for gaps and spaces between tiles or other surfaces, such as in bathrooms, kitchens, or other areas that require water resistance. The epoxy resin in grout provides a strong and durable bond, making it resistant to cracking, shrinking, and other forms of damage. This type of grout is also highly resistant to stains and chemicals, making it ideal for high-traffic or high-moisture areas. Additionally, grout epoxy resin can be tinted or colored to match the surrounding tiles or create custom designs.