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Shikkui Plaster (Paste)

Kodai Shikkui—For Roofs and Intermediate Coats

Contains oil

F⭐︎⭐︎⭐︎⭐︎

JSA Standard Passed

Leaflet (PDF)
Application Manual
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Product Specifications

This shikkui for roofs and intermediate coats retains the properties of Kodai Shikkui while further enhancing durability and strength through the addition of aggregate, oil, and coarse straw. Once dry, it turns white and can also be used as a topcoat for exterior surfaces.

Main Component

Long-matured lime cream, plant fibers, fine aggregate, vegetable oil, and other ingredients

Packaging

20 kg plastic bag

Recommended Uses

Intermediate Coating, Roofing Materials

Application Methods and Standards

Plaster Finish

Emissions Rating: F☆☆☆☆ (Japan Building Coating Materials Association, Registration No. 0307398)

Japan Plaster Association Certified Product for Chemical Emission Standards No. 2820

Technical Data

Standard Coverage

5 square meters

Standard Coating Thickness

2.5 mm

Net Mass / Suggested Water Addition

20 kg

Suitable Substrates

Drywall

Vinyl Wallpaper

Mortar and Concrete

Plaster Walls

Earthen Wall

Sand-Coated Walls and Fiber-Reinforced Walls

Specialized Primer

ウチカベース

／

ウチカベースドライ

Specialized Intermediate Coat Material

城かべ　中塗り

／

城かべ　あつもり

Installation Precautions

・When mixing with sand, using too much sand will result in insufficient strength, so please adhere to the specified amount.

・Be sure to apply Shirokabe Sealer to unglazed tiles, glazed tiles, and highly absorbent substrates.

・Be mindful of temperatures during winter roof construction, as freezing damage is likely to occur.

・Once the surface dries, the topcoat will not adhere, so be sure to apply the topcoat immediately after the previous coat.

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FAQ

Q.

How is “Kodai Shikkui for Roofs and Intermediate Coats” different from regular shikkui?

A.

This paste-like shikkui is made from a well-balanced blend of coarse susa (plant fiber) and aggregate, significantly enhancing its strength and weather resistance. It is optimized for plastering work on roofs, where high strength is required, as well as for use as an intermediate coat (base coat) on walls. Furthermore, because vegetable oil is pre-added, it offers excellent durability and water repellency.

Q.

It says it's for the intermediate coat, but can I use it as a topcoat as is?

A.

Yes, that is possible. Once dry, it develops a white, hard texture, so it can be used not only as roof plaster but also as a finishing material that highlights the natural texture of walls.