Chrome plating is an excellent way to create a premium look on various materials. It typically adds an extra chromium layer on the substrate. Chromium is a silver-gray color. Reflective and Mirror-like Finish. Because of this, non-metal parts get a metal-like surface finish. Plastic chrome plating is among the most common ones. Go to chrome plating aluminum to know about metal chrome plating.

What can you make with chrome plating?

The best answer is almost anything from car parts to household items. You can technically do it on metals, plastics, and composite materials.

Chrome plating on plastic gradually became common in the plastic industry. Chroming plating Plastic Parts are lightweight and suitable for a wide range of applications. They are like plastics and chrome at the same time. This is why chrome-plating plastic parts are so helpful.

This article’s main topic is plastic chrome plating. You will learn about the different ways of making chrome-plating plastic parts. What are the effects of chrome on plastic parts? What are their benefits? What are the applications of chrome-plating plastic parts? How do you remove plastic chrome plating? How do you do the plastic chrome restoration?

This article covers everything from A to Z about plastic chrome plating. It mainly benefits importers, suppliers, and wholesale or retail sellers. If you are a DIY enthusiast, you can get a lot of helpful information from this article. Stay tuned, and let’s get started.

What is Plastic Chrome Plating?

Like other chrome plating, plastic chrome plating is also similar. People also know this technique in different ways. Chrome dip plastic, chrome painting plastic, chrome finish on plastic, and chrome coating plastic are some familiar names.

This method adds a layer of chromium to the plastic surface. The thickness may vary depending on the process timing and application needs. For example, if you want to create 15 micros of chrome layer, you should do the process for about half an hour. It is a generalized calculation for the electrolysis process. However, the calculation may differ for other chrome plating techniques.

Plastic chrome plating was first discovered in the 1960s in North America and Europe. Manufacturers wanted to find a way to make plastic parts look more attractive and durable. At that time, chrome plating on plastic was too heavy. Today, engineers have found various ways to create lightweight chrome-plating plastic parts.

Different Ways of Chrome Plating on Plastic

You can technically do chrome plating in various ways. You can use electricity, chemicals, spray, or even vacuum techs. The five methods below are the most popular ones. Every method discussed below has its unique pros and cons. Let’s explore more.

Electroplating Plastic

Electroplating plastic is among the most common techniques. It uses an electric current to create an extra layer of chromium on plastic. First, you need to prepare the surface. Apart from cleaning, it also includes etching.

The etching process usually creates micro-structure pores on the plastic surface. These small holes help neutralize, activate, and accelerate the surface.

After you have prepared the plastic surface, your part is ready for electroplating. In this case, you can use chromic and sulfuric acid solutions.

Benefits

• It provides a strong and long-lasting finish.
• The chrome layer is smooth and shiny. It improves the look of various plastic parts.
• These electroplating plastic parts are used in cars, electronics, and decorative items.

Limitations

• The process is relatively complex.
• It is a time-consuming process.
• The setup can be costlier than other methods. You may have to purchase a good-quality power supply, electrodes, and agitation pump.

Electroless Plating on Plastic

As the name suggests, this plating process doesn’t require electricity. It is also called chemical plating. This process relies on a chemical reaction to deposit the chrome layer onto the plastic.

(1) First, create a base coat on the plastic surface. It typically ensures high-quality plating. Usually, nickel, copper, and aluminum are prevalent for this job. (2) Clean and etch the plastic. (3) Apply a catalyst to the plastic surface. (4) Immerse the plastic in a chemical bath where the metal is deposited.

Benefits

• This process doesn’t need any complex electrical setup.
• It offers a uniform coating on plastic parts.
• It is generally more cost-effective than electrolytic plastic chrome plating.

Limitations

• Electroless plating on plastic is a time-consuming process.
• The coating may not be as durable as electrolytic plating.
• Limited thicknesses.

Vacuum Metalizing Plastic Plating

Vacuum metalizing was first introduced in the 1930s. At that time, people used this technology to create reflective films for lenses. As the name implies, this process typically happens in a vacuum chamber.

This method is typically suitable for industrial manufacturing. It generally is not ideal for DIY projects. In the factory, people first use a base varnish machine to create the topcoat on the plastic parts. Then, they are kept in the oven for 70 – 90 minutes to dry.

The process typically vaporizes the chrome metal, forming a chrome cloud. The tiny chrome cloud gradually deposits on the pre-coated base layer of plastic parts. This way, your plastic parts can achieve a uniform and durable chrome layer on plastic parts.

Benefits

• Quick and efficient process.
• It offers a lightweight coating.
• This method is suitable for complex plastic parts.

Limitations

• Creating a vacuum environment might be troublesome.
• You may need an additional protective layer for more durability.

Spray Chrome Painting Plastic

This method is the simplest one. As the name suggests, it allows you to spray the chrome paint on the plastic part. Although the paint is not as durable as other methods, it can offer a chrome-like finish. In this case, a black nickel coat is crucial.

Since this method is easy relative to others, you can do it at home. But you must be careful when creating a coating. The base coat may show through if you don’t do it carefully.

Benefits

• The most cost-effective solution.
• This method is versatile for any shapes and sizes.

Limitations

• The paint may not be as durable as other methods.
• If not carefully painted, the base coat may show through.

Chrome Film Plating Plastic

Chrome film plating is another trendy method. It is primarily famous for decorative purposes. An adhesive-backed chrome film is used for this method. These films offer both stretchable and non-stretchable forms. The stretchable ones are ideal for complex shapes, while the others are for flat surfaces.

Benefits

• Chrome film plating plastic is a cost-effective method.
• It is a simple solution to create a wide range of appearances. As a result, these chrome-plating plastic parts are suitable for decorative purposes.

Limitations

• Chrome film plating plastic parts may not be as durable as electroplating or electroless plating.

Step-by-Step Process of Most Common Plastic Chrome Plating

Chrome plating plastic parts may not be as easy as you think. Each step here is critical, from creating a base coating to final plating. If you are a beginner, you may easily make mistakes. Don’t worry! We got your back.

This section mainly discusses the step-by-step process of plastic plating. We have divided the process into six main steps to make things easier. Sincere tech experts have ensured that this guide can help with DIY projects. Note that this process is only valid for electroplating plastic.

Step #1 Surface Preparation (Etching)

First, you must choose a suitable plastic material. ABS, PS, PC, PP, SAN, and PA6 are widely used for chrome plating. However, ABS is the best in this case because it bonds well with the base coating. Once you have your plastic part, clean it thoroughly.

The next step is to prepare the surface of the plastic part. You can start by cleaning it. Most people use soap and distilled water. After cleaning it, you should etch it.

Why is etching necessary for plastic parts? Since plastic is non-conductive, it is easy to do the electrolysis process directly. So, you must create a conductive layer on it to allow electrolysis. Etching is extremely necessary to perform the electroless operation.

Etching creates micro-structured pores on plastic. These pores generally help build a base layer of nickel, copper, or aluminum.

First, you can prepare the etching chemical solution. In most cases, people prefer the sulfuric acid and chromic acid mix. Then, you can carefully immerse the plastic parts in that solution. The solution slowly reacts with the plastic to create tiny holes on the plastic surface. However, you must ensure that the solution covers the plastic part’s area. Now, leave it on for the recommended time.

Step #2 Surface Neutralizing

As you know, you used acidic solutions during the etching process. Therefore, your plastic parts may still contain acids on the surface. You can neutralize the part using an alkaline solution to remove these leftover acids. It mainly changes the pH values.

After neutralization, rinse the part thoroughly. You must use distilled water for this job. Rinsing the plastic part ensures no contaminants on the surface.

Step #3 Activation and Acceleration

After rinsing your plastic part, you can activate the surface using a catalyst. As the name implies, activation typically prepares the surface for better adhesion.

What is catalytic film, and what is its purpose in chrome plating? The catalytic film makes the surface more receptive to the base metal coating. The use of catalysts technically speeds up the coating process.

After applying the film, rinse the part thoroughly once again. This will remove unnecessary film and prepare the part for the next step. Finally, the part is activated and ready for chrome plating.

Step #4 Creating a Base Coating on Plastic Parts

You can not directly apply chrome on a plastic surface. A base layer is always necessary in this case. Of course, the base layer must be conductive. Therefore, people often prefer nickel, copper, or aluminum for the base layer. Because of this layer, the electrolysis process can do this job smoothly.

We can generally create this coating through an electroless process. The process is simple, but you must know the correct chemical solution and catalyst. Immerse the plastic part in this solution and wait for some time. With the catalyst, the metal particle will automatically deposit on the plastic surface.

Step #5 Chrome Electroplating

Now, let’s move on to the actual chrome plating process. You will generally need a few tools and equipment.

• Electroplating solution
• Electrode
• Copper tube and wire
• Agitation pump
• Power supply.

First, you need to assemble these tools and equipment. Choose an appropriate place free from accidents and away from children and pets. Now, fill a storage tank or bucket with the electrolytic solution. On one side, place the electrode. You can choose the position of the electrode at your convenience.

Now, place the copper tube on top of the bucket. Then, using a copper wire, connect the plastic part and immerse it into the solution. You must ensure that the plastic part is fully immersed in the solution. Otherwise, it won’t get the desired plating thickness.

Then, gently place the agitation pump in one corner. An agitation pump typically ensures consistent plating on the plastic part. Finally, the power supply should be set to the best voltage and ampere value. Take your watch and start the power supply.

Note that the voltage, ampere, and electrolysis time depend on the type of coating and thickness. In this case, seek expert advice for more information.

Step #6 Quality Check and Finishing

Finally, carefully check the electroplating result. Look for any places where the electroplating has errors. You might see bubbles, streaks, or uneven coating. If you find any defects, you need to repeat the plating process. You can also touch up the affected areas.

Next, do the thickness test. You can use a thickness gauge to measure the chrome layer. Ensure that it meets the desired specifications. If you find less thickness, you can extend the electrolysis process.

A reputed manufacturer always ensures a professional production process. They ensure that each step discussed here is followed correctly. Each step is crucial for maintaining high-quality chrome plating plastic parts.

Benefits of Doing Plastic Chrome Plating

Chrome and metal coatings typically improve the physical properties of plastic parts. This improvement usually offers various valuable benefits. Let’s check them out!

Lightweight

Chrome-plating plastic parts are exclusively famous for their lightweight nature. Note that a mol of chromium is 51.99 grams, or a 1 cm3 of chromium is 7.192 grams. If you want to create 15 microns of chromium layer on 20 cm x 10 cm plastic parts, you will need only 2.15 grams of chromium. It is actually a minimal amount compared to the whole size.

Aesthetics

Plastic chrome plating parts have a shiny metallic finish. This finishing typically gives a premium look to the plastic parts. Besides, chrome film plating parts are ideal for decorative purposes.

Various industries prefer this high-end look for their products. They are also suitable for many chrome-plated plastic car parts.

Surface Hardness

The plastic chrome plating parts offer excellent surface hardness. Because of this, you generally create a durable and less prone to damage plastic parts. The hard surface finish also resists scratches and impacts. Moreover, it exclusively extends the life of the plastic parts.

Corrosion Resistance

The base coating may made of aluminum, nickel, or copper. Although these metals offer excellent corrosion resistance, they might rust. Plastic chrome plating typically mitigates this problem.

Wear Resistance

Finally, plastic chrome plating parts can resist wear and tear as well. They can generally withstand frequent use and friction. You know, this benefit is essential for car interior trims, buttons, and knobs. If you are an importer, supplier, or seller, you can take these products into account. They create very high possibilities for investment returns.

Application of Chrome Plating Plastic Parts

The above few benefits make chrome plating plastic parts widely popular in many industries. The premium look and durable finish suit car parts, household items, and many more. Let’s find out the opportunities of chroming plastic parts.

Chroming Plastic Auto Parts

Some examples of chroming plastic auto parts are grilles, mirrors, and trim pieces. These auto parts play a crucial role in a vehicle’s overall function and reduce the need for metals. You can use the chrome plating plastic auto parts for interior and exterior uses.

Consumer Electronics

You can find plastic chrome plating in many electronic products. For example, phone cases, pc accessories, sound speakers, headphones, and even hair dryers are noteworthy. The shiny and reflective surface looks appealing and adds a layer of protection. Because of this, you can use your gadget for a long time.

Chrome Plating Plastic Model Parts: Décor and Household Items

Chrome-plating plastic model parts can also benefit household items and home décor. People like unique designs and durable, premium looks. Examples include light fixtures, bathroom faucets, kitchen accessories, picture frames, and more.

Chrome Plating Plastic Model Parts: Industrial and Commercial

Chrome-plating plastic parts can be an excellent choice for industrial and commercial purposes. It can benefit components in machinery, equipment, and office furniture. You know, this equipment needs to be lighter and more durable. Chrome plating gives you those opportunities. Therefore, choose chrome-plating plastic parts rather than plain plastic products.

Toys and Models

Another trendy use of plastic chrome plating parts is in the toy industry. Toys often face sudden impacts or external forces. Chrome-plated plastic model parts resist this impact and ensure long-lasting performance.

Plastic Chrome Restoration Technique

Plastic chrome restoration can be done in various ways. The correct type depends mainly on the severe defects on the plastic part surface. You can polish the surface with mild abrasives if you see minor scratches. To restore the shine, you can merely buff it.

Step #1 Plastic Chrome Removal

You can typically remove chrome plating in various ways. You can either use chemical stripper, abrasive blasting, or mechanical sanding. Since plastic is a lightweight and flexible material, people prefer chemical stripping.

Step #2 Surface Repair

Once the chrome and base layers are peeled off, you can clearly see the defects. Is it a crack or a chip? You can generally fix them using plastic fillers. Apply the filler and let it cure. You can use a sanding machine to smoothen the surface.

Step #3 Re-plating

Once you have repaired the original plastic part, you can re-plate it. In this case, you can follow the same process mentioned earlier. Ensure the application is even and smooth for a high-quality part.

Plastic Chrome Plating Service at Sincere Tech

Sincere Tech is a leading plastic chrome plating service provider. They mainly focus on mold design and manufacturing. The company also offers ODM, OEM parts, assembly metal parts, plastic parts, PC boards, and many more. Their plastic chrome plating service is one of a kind. You can get the best quality from this manufacturer.

The materials they deal with are primarily plastics. They are mainly known for their high-quality products. This company is the best option if you are looking for a plastic mold and parts manufacturer.

Frequently Asked Questions

Which plastic material is suitable for chrome plating?

The most suitable plastic for chrome plating is ABS-PC. It is a combined plastic material made of ABS and PC. This combination typically offers durable and good adhesion properties. This material is used in many industries. ABS-PC is also ideal for chrome plating.

What is the cost of chrome plating?

The cost of chrome plating generally ranges from $10 to $100. For example, if you are doing a DIY project, including the cost of tools, you might need $100 to $200. However, re-chroming might cost only $10 to $20.

How to protect chrome-plated plastic?

Regular maintenance is crucial to maintaining the shine of chrome plating. Clean it regularly with a soft cloth and mild soap. You can also apply a special chrome polish to add a protective coating.

Which is better, electroplating or electroless plating?

Both electroplating and electroless plating have unique advantages and benefits. Electroplating produces a bright finish, and you can control the thickness of the plating. On the other hand, electroless plating offers better hardness levels. This process is fast and provides more resistance to corrosion and abrasion.

Summary

Plastic chrome plating is a plastic surface finishing process. People call it by many names. However, it mainly adds an extra chromium layer on the plastic parts’ surface.

Chrome plating on plastic parts can generally be done in five different ways. Electroplating and electroless plating are two popular methods. However, chrome film plating is widely used for decorative purposes.

Plastic chrome plating parts are lightweight and have a premium look. They offer excellent surface hardness and corrosion resistance.

Chrome-plating plastic Parts are widely used in many industries. One of the most common is chrome-plating plastic auto parts. They can also be found in electronics, household items, and the toy industry.

Don’t hesitate to contact our customer support if you are looking for plastic chrome plating service. Sincere Tech experts are always ready to answer your queries and will provide you price in 24 hours.