SP-100 Stain Free Grout is a type of grout that is formulated to resist staining and discoloration, especially in areas that are prone to moisture, spills, and high traffic. It is commonly used in kitchens, bathrooms, and other areas where tile or stone installations are exposed to substances that can cause discoloration over time. The grout is designed to repel various substances that typically cause staining, such as food, grease, and dirt. SP-100 Stain Free Grout provides a durable and long-lasting solution for tile installations, ensuring that the grout lines maintain their original color and appearance over time.