"Tosa Shikkui" - The truly safe material.

Benefit from rich natural environment of Shikoku karst, we have been developing and distributing various lime-related products since we established in 1918.
Our "Tosa shikkui" is based with limestone from Kochi which is high in both quality and whiteness, used for housings, public buildings, shrines and temples, and appreciated by clients for its natural, heartwarming texture and design.

Shikkui is a "classic material" enables to reduce health damages like sick building syndrome. We spare no effort to improve our "Tosa shikkui" in order to contribute to create a safe and comfortable environment for the people to gather together.

Main Actual

1) "Tosa Shikkui(plaster)whiting" used at : Nahari Station (Gomen-Nahari Line, Kochi) Hotel Villa Santorini, Kochi Yasakadera Temple, Ehime 2) "Neri(Kneaded) Tosa Shikkui(plaster) used at :Ryushoji Temple 3) "Hand-made Tosa Shikkui(plaster) 21" used at Shikoku Railway Museum, Saijo City, Ehime Sogo Shinji Memorial Museum, Saijo City, Ehime
And more at riverbank reinforce project, private houses and for lime soil stabilizer, etc. See our website for more details.

Overview of products, facilities and manufacturing techniques

Since early times of architectural history, Shikkui(plaster) has been used for main buliding materials for many architectures and important cultural properties. Focused-on to the traditional method of shikkui-coating from earlier as a lime hydrate manufacturer, we began the research of "shikkui" from 1970s. Since then, we have been developing various shikkui-related products. Lime is a main raw material for shikkui and architectual history of more than 5000 years proves as "truly-safe wall material". During recent years, health damage caused by noxious chemicals emitted from adhesive and coating materials is now a nationwide problem, makes difficult for the residents to stay even in their own houses. "Original shikkui" can be produced at our plant upon client's detailed request, and we hope this will help the settlement of above problems for the bright future of housing environment.

Main product line 1

[Excellent properties of Shikkui(plaster)]For thousands of years in abroad and more than a thousand year in Japan, Shikkui has been used for various type pf architectures. It has many functions such as humidity conditioning, antibacterial effect, fire-safety, earth-friendly and easy to design and create which are suitable for seasonal climate changes in Japan. 1) Humidity conditioning and sorbability: Porous shikkui-coated wall is breathing all the time to control the humidity. Because of this function, smell of cigarettes and formaldehyde which is substance mailnly responsible for sick building syndrome can be absorbed and degraded, to keep the air clean. 2) Antibacterial effect: Shikkui has an antibacterial effect because it's strong alkaline. It works together with humidity control funcion, prevents ticks and molds to build up. 3) Safeness: Shikkui is blended with natural materials like lime hydrate and natural glues, this chemical-free aspect reassures both builders and people who live there. 4) Toughness: After the shikkui coated on the wall, during the slow process of hardening and drying-out, it gets harder and harder by absobing carbon dioxide in the air and finally turns back to lime rock after more than 100 years. 5) Fire-safety: Addtion to its fireprrof performance, it does not produce noxious fumes and prevent fire spread in case of fire. 6) Earth-friendly: Shikkui's base material is a lime, which is one of the resources from the earth. Therefore, there is no need to concern about the emissions of dioxine and asbestos at the time of disposal.

Main product line 2

[Tosa Shikkui(plaster) whiting] For both interior and exterior walls.
Since its release more than 40 years ago, This is "ready-mixed plaster"used regularly by builders for both Japanese and western architectures as all-round plastering materials for roof, interior and exterior walls.Shikkui(plaster) is made from simple natural materials with gentle texture and high perfomance, fit well together with other natural materials such as washi(hand-made Japanese paper) and wood, creating the comfortable living space.

Main product line 3

[Hand-made Shikkui(plaster) 21]For exterior walls.
Specially-mixed with highly selected materials to withstand even under severe environmental conditions, decreasing the cruck and other damages. Regular coating thickness is thick as 4~5mm, therefore capable to create massive yet beautiful appearance and protect your house over the years.

Main product line 4

["Kote-jirushi" Tosa Shikkui(plaster)] For roof tile
Ready-mixed with best selected materials. All the materials needed for roofing work are mixed and can be used instantly just kneading with water.

Access Map

Address：3143-1 Inabu, Nankoku City, KOCHI
TEL：088-865-0014
FAX：088-865-0016

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