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Shikkui Plaster (Powder)

Shirokabe

MLIT-certified Non-combustible Material

F⭐︎⭐︎⭐︎⭐︎

JSA Standard Passed

  • sk0001
  • sk0001_2

Product Specifications

The first premixed shikkui sold in Japan. Even now, some 60 years after its launch, this standard, authentic shikkuir—formulated with hemp and susa—continues to be favored by many craftsmen.

Main Component

Salt-baked slaked lime from Tagawa, powdered thickening agent, dietary fiber

Packaging

20 kg of powder / Kraft waterproof bags

Case of 6 x 4 kg plastic bags

Recommended Uses

Plaster for interior and exterior finishes (*Please add oil when using for exterior applications)

Construction Methods and Standards

Plaster Finish

Emissions Rating: F☆☆☆☆ (Japan Building Finishing Materials Industry Association, Registration No. 0307389)

Japan Plaster Association Certified Product for Chemical Emission Standards No. 2811

Certified by the Minister of Land, Infrastructure, Transport and Tourism as a Non-combustible Material NM 4569(1)

Construction Specifications

Standard Construction Area

16.5 m²

3.3 m² per small bag

Standard Coating Thickness

Approximately 1.5 mm

Net Mass / Water Content

20 kg / Approx. 15 L of water

Suitable Substrates

Drywall

Vinyl Wallpaper

Mortar and Concrete

Plaster Walls

Earthen Wall

Sand-plastered wall

Dedicated Intermediate Coat Material
Installation Precautions

・Be sure to add “Shirokabe Oil” when applying the mixture to exterior walls or areas exposed to water.

・If the mixture is to be left to cure for more than one week, add a binding agent (powdered ginkgo grass) to maintain applicability.

・Always apply “Shirokabe Sealer” to substrates that are buried in the ground or highly absorbent.

・Use a metal trowel as much as possible for troweling; use a plastic trowel only for finishing.

・Since efflorescence is more likely to occur in winter, keep the area as warm as possible and avoid application when temperatures are below 5°C.

 

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Frequently Asked Questions

Q.

Can it be used on exterior walls?

A.

Yes. Please add some Shirokabe oil before use.