100ml Toy Bluing Blue Liquid HW Zinc Brass Birchwood

This is a trusted, domestically produced, room-temperature blackening agent ( bluing liquid) with a proven track record of sales on Mercari and other flea market sites (like the one starting with Y).

This is a 100ml bottle of undiluted room-temperature blackening agent (bluing liquid) for toy .
The item is brand new and unused.
It comes in a dedicated bottle (with measurement markings) for bluing liquid that prevents leakage even during long-term storage.
It can generally be used on materials other than toy , as long as they are compatible.
The parts shown in the product images are sample images of Tokyo Marui steel and zinc alloy parts that have been blackened.

Compatible materials include HW (heavyweight resin), zinc alloy (recommended), brass (recommended), copper (recommended), and iron (steel).

In addition to regular bluing, this bluing liquid is also ideal for repairing scratches and peeling on zinc alloy parts of airsoft and model where the base metal has been exposed.

For example, by dipping a cotton swab in the undiluted liquid and applying it to the exposed areas of the part, it will naturally turn black. This is overwhelmingly more cost-effective than using a bluing pen.

If you polish the surface with sandpaper or similar materials before use, you can achieve a blued or case-hardened color.
Please be sure to wipe off any oil or dirt before use.
If it accidentally comes into contact with wounds or mucous membranes, rinse immediately with clean water.

Processing methods: Immersion method at room temperature, brush application, spraying, etc.
For application, dilute 1 part undiluted liquid with 5 parts water (6x dilution). For brush application, use a slightly more concentrated mixture.

Processing technique is extremely simple.
It creates a uniform film even on parts with complex shapes.
Since the processing temperature is room temperature, it does not damage the material.
It is odorless, non-flammable, and does not degrade even with long-term storage.
There is almost no change in dimensions before and after processing.

Blackening, rust prevention, CAROMSHOT, G.Smith.S, Indi, BIRCHWOOD, Super Blue, Aluminum Black