A wall plastering technique using soil and lime that boasts a tradition of over a thousand years in Japan.
"Otsu" is a water-based inorganic interior and exterior finishing material. It contains no harmful substances, is completely non-combustible, and creates a unique softness and presence on wall surfaces. Additionally, due to the incorporation of diatomaceous earth, it has weather resistance on the exterior and exhibits humidity control functions on the interior. 【Features】 ■ Contains no harmful substances ■ Completely non-combustible ■ Contains diatomaceous earth ■ Weather resistant ■ Humidity control function *For more details, please refer to the catalog or feel free to contact us.
Inquire About This Product
basic information
【Specifications】 ■Packaging: 20kg craft bag of pre-mixed powder ■Usage: Interior and exterior finishing material ■Finish thickness: 1.5mm to 2.5mm ■Coverage area: 10 to 15m² per bag ■Usable time: 24 hours ■Shelf life: 12 months *For more details, please refer to the catalog or feel free to contact us.
Price range
Delivery Time
Applications/Examples of results
For more details, please refer to the catalog or feel free to contact us.
catalog(1)
Download All CatalogsCompany information
Tamagawa Industries was founded in 1924 (Taisho 13). We have a consistent manufacturing facility that spans from the firing of raw stone (salt firing) to the final product, and our core technology focuses on the application of lime resources that can be self-supplied in Japan and the development of plaster techniques. We were the first in Japan to develop and sell pre-mixed plaster, which has been adopted in various castles and important cultural properties across the country, starting with Osaka Castle. Plaster is an eco-friendly material that originally combines lime, which has no environmental burden, with natural materials such as seaweed and plant fibers. When applied in construction, it exhibits excellent properties such as humidity control, deodorization, antibacterial effects, and fire resistance. Therefore, it adsorbs VOCs that can cause sick house syndrome, improving indoor air quality and enhancing sanitary conditions. Our company is committed to the usefulness of this plaster and, while considering the reduction of environmental impact, we will contribute to health and welfare through various proposals for living environments.