Thank you for viewing. Interior Substrate Adjustment Material (Non-Gypsum) BEST UNDER (Fujiwara Chemical) 3.3kg x 3 bags. Anti-stain and stain-blocking diatomaceous earth undercoat. Can be applied simply by mixing with water. This alone allows for joint treatment, level difference mitigation, stain blocking, and water absorption adjustment! Purchased about 10 years ago, unopened, stored in an indoor storage room. - Fujiwara Chemical - Product Name: BEST UNDER - Quantity: 3 bags - Material: Non-gypsum - Size: 3300g/bag Free shipping, anonymous delivery. Please consider this item with the understanding that it is a home-stored product. I have other items for sale as well. Please take a look. ➡ #Sanchi's Listings Interior Remodeling Wall Material Diatomaceous Earth