What are the external coatings for metals, resins, and rubber parts?

For various products, such as automobiles and cameras, parts made of materials, such as metal, resin, and rubber, are used. The treatment applied to those industrial parts is the exterior coating. An exterior coating can beautifully finish the appearance of parts by applying a coating agent to the surface of an object. In addition, it is also possible to increase the durability of components and add value by forming a protective film.

It can be said that an exterior coating, which is related to appearance and durability, also has a significant impact on the quality of industrial products.

Advantage of Applying Exterior Coating

The exterior coating on parts, such as metals, resins, and rubber, has the following advantages;

• Adds various color tones
• Prevention of scratches and stains
• Improved anticorrosion, anti-weather, and anti-sweat performance

Let’s look into the advantages of an exterior coating.

Adds various color tones

The coating agents used for an exterior coating are provided in various colors. It allows the addition of color tones to the object by applying an exterior coating. The coloring of black, white, green, silver, and other colors are available with the coating agent used.

Even for parts that are not very prominent, it is important to add a color tone. The industrial products, such as automobiles and cameras, are composed of multiple parts. A combination of parts having different color tones will spoil the unity and may give an ugly impression.

The beauty of the appearance is an essential element for a product to be picked up in the hands. For this reason, exterior coatings are applied to add a color tone in accordance with the application of parts.

Prevention of scratches and stains

By applying an exterior coating, it is possible to prevent scratches or stains on the parts surface. Parts without coating tend to get stained, resulting in lost beauty.

Furthermore, parts may be scratched by rubbing against each other. Deeper scratches will degrade the durability of parts, and eventually the possibility of breakage may increase. If the parts frequently break, it is no longer possible to use the product safely and requires more labor for maintenance. However, if the surfaces are protected by an exterior coating, stain-proof and anti-scratching performances are enhanced.

These effects will bring about the metal, resin, and rubber parts that are tough and resistant to scratches while preserving the beautiful appearance.

Improved anticorrosion, anti-weather, and anti-sweat performances

The exterior coating has an effect of improving the anticorrosion, anti-weather, and anti-sweat performances of parts. Anticorrosion performance is the strength of durability to metal corrosion. Once the oxidation of the metal surface makes progress, rust is generated, and the beautiful appearance and durability will be spoiled.

Anti-weather performance is the strength of durability to the natural environment, such as sunlight, temperature, humidity, and rain. Materials, such as metals, resins, and rubber, are susceptible to the impact of weather and will undergo fading in color and embrittlement if appropriate measures are not taken.

Anti-sweat performance is the strength of durability to the impact of sweat. Sweat contains sebum, protein, sodium chloride, and urea, which can be a source of nutrients for microorganisms. The growth of microorganisms on parts may result in the cause of deterioration.

Some products may be used outdoors, or sweat may come into contact with parts. To prevent deterioration due to such impacts, an exterior coating is necessary.

What is the exterior coating on metal parts?

 

Coating agents provided in various colors are applied to metal parts. This can give color tones and finish the appearance beautifully. At the same time, by improving the adhesiveness and anticorrosion performance, metal part surface protection becomes possible.

Metal is a hard, durable material, but it also has the property of being easily scratched. Particularly, stainless steel and aluminum are metals that are easily scratched. An exterior coating provides an anti-scratch effect and increases the durability of parts that are susceptible to scratches.

Furthermore, metal is a material that is susceptible to corrosion. To prevent deterioration due to corrosion, it is necessary to improve anticorrosion performance with an exterior coating. It is also an indispensable processing treatment for the parts of products that are often used outdoors because it can improve anti-weather performance.

Exterior coating case examples of use for metal parts

The exterior coating is applied to a wide range of metal parts. Main case examples of use are as follows;

• Exterior press parts
• Housing
• Camera hinges and other parts

Arbitrarily colored coating agents can be applied for an exterior coating. For that purpose, the coating in a color tone in accordance with the application of metal parts, such as piano black, are provided.

Toyo Drilube offers an exterior coating for metal parts. An exterior coating for any materials and parts having a sophisticated shape is supported.

What is the exterior coating for resin (plastic) parts?

A colored coating agent is applied to resin parts for improvement of the appearance of the exterior. The surface of parts is protected by the coating agent, and the adhesion and anticorrosion performances can be improved.

Resin is a material strong against water, accordingly, no rust or corrosion will occur. For this reason, it is commonly adopted as parts used as a component for which metal is not applicable. It is also a lightweight material and contributes to energy saving for the applications that require power for activating a product. Furthermore, being lower in cost compared to metals, it is utilized for various products such as industrial machinery and automobiles.

However, attention has to be paid to the point of the possible progress of deterioration in resin caused from the impact of weather, such as UV and rainwater. In addition, it has the disadvantage of being susceptible to surface scratches. For these reasons, it is essential to enhance durability by applying an exterior coating.

Case examples of use of an exterior coating for resin (plastic)

All resin parts are applied with an exterior coating. Color tones that match the application, such as piano black or silver, can be added to resin parts as the exterior coating. For example, resin parts are widely adopted for the interiors and exteriors of automobiles.

While bare colors of resin parts may appear tasteless, changing the tone to piano black, or silver as an accent, can give a luxurious and chic impression. Furthermore, such functions as anti-weather, anticorrosion, anti-sweat, and protection from scratches and stains will enhance the added value.

Toyo Drilube offers an exterior coating for resin parts. Similar to metal parts, adaptation is flexible to parts having a sophisticated shape as well. Furthermore, a separate consultation is offered for the assembling of formed products as well.

What is the exterior coating for rubber parts?

It is also possible to apply an exterior coating to rubber parts. Similar to other materials, as well as adding the color tones using coating agent, it can enhance anti-weather performance and durability by surface protection.

Rubber parts are used for various products, such as automobiles and cameras. Since those are the important parts that support the performance of devices and safety, an exterior coating is necessary for prolonged use.

For example, since hardening or cracking may occur under the influence of UV light, it is necessary to enhance the anti-weather performance with an exterior coating. It also occurs that where rubber parts are used to absorb machine vibration, deterioration may occur under the influence of friction caused by vibration. By applying a coating agent to the surface, it is possible to reduce the impact of friction.

What is Cast Texture / Appearance Coating?

 

Texturing coating is an exterior coating that gives an uneven wrinkle pattern to the surface of an object. The coating generates the proper thickness and covers minor scratches and unevenness. Adding a sense of luxury to parts by applying a pattern to the surface is also a great advantage.

When applying a texturing coating, a paint of the same color as the topcoat paint is applied to the substrate of the parts in advance. By spray coating at low air pressure while the viscosity of the topcoat paint is increased, a unique wrinkle texture pattern can be formed.

Use example of texturing coating

The texturing coating can be applied to various types of materials, such as metals and resins. It is widely used in high-end exterior parts, such as single-lens reflex cameras, drone cameras, and on-board cameras.

High painting precision is required for texturing painting, and the process may take longer. For example, to achieve a uniform finish, the coating must be applied with care in such a way that fine dust does not adhere to the surface. Since highly skilled techniques are required for the coating process, it is recommended to request the service from a contractor with abundant experience.

Leave the exterior coating of metal, resin, and rubber parts to Toyo Drilube!

 

In this issue, we introduced exterior coatings applied to metals, resins, and rubber parts. Exterior coatings serve to aesthetically prepare parts by applying coating agents, and at the same time, to enhance durability by adding a protective film. A coating treatment that is required in the manufacture of a variety of industrial products, such as automobiles and cameras.

Toyo Drilube offers an exterior coating for metal, resin, and rubber parts. No matter the material or shape, color tones, such as piano black or silver, can be added in accordance with the application. Leave it to us for textured coatings that require skilled techniques. Please feel free to contact Toyo Drilube whenever you need the exterior coating of parts.

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