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Komon Kasumi Powder 50 g is a polishing powder designed for the maintenance and restoration of kasumi finishes on Japanese knives. When mixed with a small amount of water, it forms a paste that allows you to gradually work on the blade’s surface to refresh or even out its appearance. This formula follows the traditional finishing methods of Sakai knives and was developed by Ivan Gomez Fonseca to make it easier to use.

To prepare the paste, simply add water to the powder in a separate container until it reaches a consistency similar to that of toothpaste. Areas that should not be polished can be protected with adhesive tape. The paste is then applied to the blade with a fine sponge, working gently until the desired finish is achieved, after which the blade must be thoroughly rinsed with water.

Each container includes several pieces of 3M Softback Ultrafine abrasive sponge, corresponding approximately to a grit of 800 to 1000. The sponge has an abrasive side and a non-abrasive side, allowing you to adapt the application to the knife’s initial condition and finish. It also helps distribute the paste evenly across the blade’s surface.

Kasumi Powder is primarily intended for surface finishing, not for sharpening the edge. The result depends on the existing finish, the pressure applied, and how the blade has been prepared. For Japanese knives with a handcrafted Kasumi finish, it is best to work gradually and check the results regularly to preserve the original contrasts and visual geometry.

By Komon

Komon Kasumi Powder 50g

Regular price $25.00
Shipping scheduled for
FREE Shipping CA 150$+
Store availability
Montréal: In stock
Québec: Out of stock

*Transfer available between stores, contact us at

Reservations are held for 3 hours during business hours (10 AM to 5 PM).
Any order placed outside of business hours will be reserved for the first 3 hours of the next business day.

Description

Komon Kasumi Powder 50 g is a polishing powder designed for the maintenance and restoration of kasumi finishes on Japanese knives. When mixed with a small amount of water, it forms a paste that allows you to gradually work on the blade’s surface to refresh or even out its appearance. This formula follows the traditional finishing methods of Sakai knives and was developed by Ivan Gomez Fonseca to make it easier to use.

To prepare the paste, simply add water to the powder in a separate container until it reaches a consistency similar to that of toothpaste. Areas that should not be polished can be protected with adhesive tape. The paste is then applied to the blade with a fine sponge, working gently until the desired finish is achieved, after which the blade must be thoroughly rinsed with water.

Each container includes several pieces of 3M Softback Ultrafine abrasive sponge, corresponding approximately to a grit of 800 to 1000. The sponge has an abrasive side and a non-abrasive side, allowing you to adapt the application to the knife’s initial condition and finish. It also helps distribute the paste evenly across the blade’s surface.

Kasumi Powder is primarily intended for surface finishing, not for sharpening the edge. The result depends on the existing finish, the pressure applied, and how the blade has been prepared. For Japanese knives with a handcrafted Kasumi finish, it is best to work gradually and check the results regularly to preserve the original contrasts and visual geometry.

Product notes

Please take note

Each handle is unique and may exhibit distinct variations, such as differences in shades or colors in the buffalo horn, which is part of its authentic and handcrafted character.

Shipping and Returns

What are your shipping rates?

Canada: $15 (free for orders over $150)
United States: $20
Rest of the world: $50


What are the delivery times?

We do our best to process your order within 72 business hours (weekends excluded) in order to ship your package as quickly as possible. Delivery times vary depending on the carrier. If you need faster delivery, please contact us at 514-503-1185.


Is there a refund policy?

No refunds are accepted.
The only exception concerns defective items (although our team checks every order with the utmost care). If you receive an item that appears to be defective, please notify us as soon as possible after receipt. In the event of damage caused by the carrier, please keep all items and original packaging for a possible inspection by the carrier. Items returned to Stay Sharp are at the buyer's expense. Items must be properly packaged to prevent any damage and must be fully insured. Please also provide us with the tracking number so that we can monitor the status of the shipment. Funds will not be refunded until we have received the items and confirmed that their condition is satisfactory. The refunded amount will correspond to the amount paid, less shipping and handling fees, online sales fees and any other costs incurred.

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