Aerosol cans are essential packaging solutions for industries like cosmetics, household chemicals, automotive products, and more. But before they’re filled with products, they start as raw materials transformed into precision-engineered containers. At Guangzhou Mijia Aerosol Can,we specialize in supplying high-quality empty aerosol cans for global manufacturers. Let’s explore how they’re made.  

1. Aerosol Can Material Selection: Tinplate VS Aluminum

Empty aerosol cans are typically made from:  

Tinplate(tin-coated steel): Strong, cost-effective, and widely used for industrial products.  

Aluminum:Lightweight, rust-resistant, and ideal for cosmetics, pharmaceuticals, and food-grade products.  

The choice depends on the product’s requirements (pressure resistance, corrosion resistance, weight, and cost).  

2. Aerosol Can Manufacturing Process

Step 1: Metal Sheet Cutting & Cup Formation 

- Large metal coils are cut into small discs.  

These discs are pressed into shallow cups using a mechanical or hydraulic press.  

Step 2: Deep Drawing – Shaping the Can Body

- The cups are stretched and thinned in multiple stages to form a seamless cylindrical can.  

This ensures no weak seams, critical for holding pressurized contents.  

Step 3: Wall Ironing (For Aluminum Cans)

- Aluminum cans undergo wall ironing to achieve uniform thickness.  

- Steel cans may skip this step, depending on design.  

Step 4: Washing & Drying

- The formed cans are cleaned to remove lubricants and metal residues.  

- Ensures a clean surface for coating and printing.  

Step 5: Necking & Flanging

- The top of the can is narrowed (necked) to fit the valve.  

- A flange is added to create a secure seal for the valve assembly.  

Step 6: Internal Coating (Lacquer Application)

- A protective epoxy or polymer lacquer is sprayed inside to prevent corrosion.  

- Critical for products like paints, chemicals, or food-grade aerosols.  

Step 7: External Printing & Decoration

- High-speed printing applies branding, labels, and safety warnings.  

- Options:Offset printing, UV printing, or shrink sleeves for premium designs.  

Step 8: Quality Testing

- Leak testing (pressure checks)  

- Dimensional accuracy (height, diameter, valve fit)  

- Coating integrity(to prevent rust or chemical reactions) 

Why Choose Guangzhou Mijia for Empty Aerosol Cans?  

✔ Global supplier with more than 10 years of experience in aerosol packaging  

✔ Custom sizes & designs(50ml to 1000ml+ cans)  

✔ Compliant with international standards(DOT, EU, REACH)  

✔ Sustainable options (recyclable materials, eco-friendly coatings)  

✔ OEM/ODM services (private labeling, custom shapes, and valve options)  

Applications of Our Empty Aerosol Cans

- Cosmetics:Hairsprays, deodorants, shaving foams  

- Household:Air fresheners, cleaning sprays, disinfectants  

- Automotive:Lubricants, brake cleaners, degreasers  

- Industrial:Paints, adhesives, coatings  

As we know that aerosol can includes external printing and internal coating, which are both of great significance to your products. But what are the functions of the internal coating? Let's go through this article to know about more.

1. Importance of internal coating: The main function of the internal coating of aerosol aluminum cans is to protect the internal surfaces from corrosion by aggressive chemicals contained in the filler. Besides, the internal coating also prevents direct contact between the filling and metal, thus extending the shelf life and ensuring the safety of the product.

2. Selection of internal coating materials: Materials of the internal coating is essential to ensure the safety and durability of aerosol cans. Commonly it includes epoxy, organic solvents, polyphthalamide phthalimide. And each of which has different advantages and limitation. For example, epoxy has good processability and chemical resistance while polyphthalamide phthalimide has particularly excellent chemical resistance.

3. Production process: The production process for aluminum aerosol cans consists of a number of steps, including the manufacture of the can body, the application of the internal coating, drying, and quality testing. The internal coating technology is the key link which usually uses an airless pump nozzle system to spray the coating onto the inner surface of the rotating can body, then goes to drying and curing.

4. Testing: The internal coating of aerosol cans is subjected to a series of performance tests to ensure its quality and safety. It includes appearance quality, dimensions, weld filler integrity, internal and external coating adhesion, external coating hardness, airtightness performance, deformation pressure and burst pressure testing.
5.  Market and technology trends: As the market develops and technology advances, the interior coating technologies of aerosol can are constantly developing. For example, water-based modified epoxy resin coatings are favored for their environmental performance. At the same time, market demands for lightweight and high-performance aerosol cans is also driving the development of related technologies.

All in all, ensuring the quality of the internal coatings can help improve the shelf life and safety of the aerosol cans. In MIJIA, various internal coatings are available for your aeroosl products. Tell us what you need, we do for you!

Introduction

As a leading manufacturer in the aerosol industry,  Mgaerosolcan is dedicated to providing high-quality products and sharing valuable knowledge with our partners and customers. In this blog, we will focus on aerosol metered valves, a crucial component in many aerosol products.

What is Aerosol Metered Valve?

An aerosol metered valve is a precision device designed to dispense a specific and consistent amount of product from an aerosol canister. It controls the flow and quantity of the aerosolized substance, ensuring accurate dosing. These valves are engineered with meticulous attention to detail, typically consisting of a valve body, a stem, a gasket, and a spring mechanism. The valve body houses the other components and provides the structure for the valve's operation. The stem is responsible for opening and closing the valve, allowing the product to be released in metered amounts. The gasket ensures a proper seal to prevent leakage and maintain the integrity of the aerosol system. The spring mechanism provides the necessary force to return the valve to its closed position after each actuation.

Ask for Sample

If clients require aerosol metered valve samples for testing, please provide the following data to enable us to recommend the most suitable valves for you.

1- Which kind of propellant gas do you use for this valve, LPG or DME?

2- Is the formula highly concentrated?

3- What's the dosage of valve, conventional are 25/50/75/100 mcl

4- What's the material of aerosol valve's stem? Plastic or metal stem?

5- Which kind of gaskets?  NITRILE/ Neoprene/ Chlorobutyl gaskets?

Applications and Uses of Aerosol Metered Valves

Aerosol metered valves find extensive use in a wide range of industries. In the personal care sector, they are commonly used in products such as deodorants, hairsprays, and perfumes. For instance, a popular brand of deodorant uses a metered valve that dispenses exactly 0.14 grams of the deodorant formulation per spray. This precise amount is sufficient to provide effective odor protection for an average user throughout the day without over-application. In the pharmaceutical and medical fields, metered valves are essential for the accurate dispensing of medications in aerosol form, such as inhalers. Take a common asthma inhaler as an example. The metered valve in it ensures that each puff delivers a precisely measured 90 micrograms of the active pharmaceutical ingredient, allowing patients to receive the correct dosage of the medicine, which is crucial for effective treatment. In the household and cleaning products industry, aerosol cleaners, air fresheners, and insecticides often utilize metered valves. A well-known brand of aerosol air freshener can has a metered valve that emits a 0.2-ounce burst of fragrance each time it is pressed, making it easy to control the intensity and longevity of the fresh scent in a room. In the automotive industry, aerosol paints and lubricants with metered valves enable precise application. For example, a professional-grade aerosol paint for automotive touch-ups has a metered valve that deposits a thin, even layer of paint with each spray, allowing for seamless color matching and a smooth finish.

Benefits of Using Aerosol Metered Valves

One of the significant advantages of aerosol metered valves is their accuracy. This precision in dispensing helps to optimize product usage, reducing waste and saving costs for both manufacturers and consumers. For manufacturers, it also ensures consistency in product quality. Since the same amount of product is dispensed each time, customers can expect a uniform experience. Metered valves also contribute to product safety. By controlling the amount of product released, the risk of overexposure or accidental ingestion of harmful substances is minimized. Moreover, they enhance the convenience of using aerosol tin can products. Users can easily control the amount they need, whether it's a small spray for a quick touch-up or a larger dose for a more extensive application.

1.Stability & Compatibility of aerosol tin can

For any aerosol products, we should first select the cans according to the type of product, the characteristics of the formula to do the compatibility & stability test to ensure the stability of the product. Only through the stability of the test can we let the product into the market.

 

2.Security of aerosol tin can

It Includes the safety of use, pressure safety, environmental safety, safety of independence and the percentage of contents in a full aerosol tin can, etc.

 

3.Comfort of use of aerosol tin can

Any products after production and selling, it will be used by the final consumer. Besides, the comfort of use, ergonomics, spray effect, fragrance concentration, etc., related to the permanence of the existence of the product.

4.The economics of aerosol tin cans

Excessive use of packaging materials, in fact, is type of a waste. Therefore, the choice of packaging materials is an environmental protection.

5.Aesthetic appeal of aerosol tin can

Many consumers, especially cosmetics are outlook picker. Therefore, the first impression often determines the success of the products. And we also need pay more attention to the combination of appearance setting and the aesthetic needs of appropriate groups.

 

[Prologue]

We prepared a set of 2K Aerosol Tin can and other materials, which will simulate the filling and painting process of 2K aerosol spray paint can. Also, we picked our latest 2K Aerosol Tin can as the experimental props.

Experimental materials

1- Two paper cups. 2- A aerosol valve compressor. 3- A bottle of DME propellant gas. 4- The new design 2K Aerosol Tin can. 5- Two different colored liquids (blue and yellow).

Experiment Process

✅ Click to know more about it: 2K Aerosol Can Product LInk

1. Prepare 2 paper cups, one fill the blue liquild, the other one fill the yellow liquild

2. Filling the 2K aerosol tin can (spray paint side)

→pour the blue liquid into spray paint side

→put the spray paint aerosol valve into the can

→use the valve compressor to seal the aerosol valve

→fill the DEM propellant gas into the can

→Attach the nozzle and plastic

3. Filling the 2K aerosol tin can (Curing agent side)

→pour the yellow liquid into curing agent side

→put the aerosol valve into the can

→use the valve compressor to seal the aerosol valve

→Attach the black button and plastic cap

4. Before Mixing

Before mixing, spray blue liquid

5. Mixing process

We need to mix the liquid on both sides (simulating the process of mixing spray paint and curing agent in 2k aerosol tin can).

→Remove the cap

→Put the black button on the ground

→Press the black button (to mix the two liquids)

→Shake the bottle

6. After Mixing

Now we open the other side of the plastic cap, and we can see that the liquid that is ejected turns green, because blue + yellow = green.

Conclusion

Through this simple experiment, we have been able to gain a better understanding of the working principle of Mgaerosolcan 2K aerosol tin can. The ability to keep substances separate until the desired moment and then allow for a controlled interaction is a key feature of this innovative product.  We believe that this double-headed can has great potential in many fields, and we look forward to seeing how it will be utilized in the future.  Stay tuned for more updates and experiments related to our exciting new product!

 

【Friendly reminder】

This blog post is an original work, crafted with care and precision to share the unique insights and details about our revolutionary 2K aerosol tin can experiment. The ideas, descriptions, and the entire experimental narrative are the intellectual property of GUANGZHOU MIJIA. Any unauthorized use or reproduction is strictly prohibited.

Comprehensive Overview of Printing Techniques

 Aerosol Can-Specific Printing Solutions

To Eliminate The Double Cup: Look For Disposable Cups With Double Insulation

If the safety and well being of your customers is important to you (of course, it is!), look for disposable paper cups with thermo-grip technology which uses a double wall of insulation to keep heat in, and eliminates the need for double cupping. There will never be situations like the one described above, and you can skip purchasing extra cups and sleeves during your next order of supplies to save your business money. Not to mention, you won’t have to keep as many products stocked, which will make you happy no doubt, as well as Mother Nature.

To Support The Environment: Choose Compostable And Biodegradable Paper Cups

Choosing recyclable coffee cups is the first step for choosing eco-friendly products, but if you wish to take it to the next level, be sure to choose biodegradable and compostable paper cups from MrTakeOutBags.com. Biodegradable means that the product will completely break down and will simply return to nature, without sitting in a landfill contributing to pollution; compostable means a product will not only break down but will actually turn into nutrient-rich food for our soil. If minimizing your carbon footprint is important to you, then you need to use these eco-friendly paper cups in your shop for hot and cold beverages.

To Make Your Business Stand Out: Look For Unique Colors And Designs

Your business needs a certain brand image to stick out from the sea of other shops. You need to decide what makes you special, what you support, and what you wish to convey to customers. If you support eco-friendly products, then look for natural kraft coffee cups with the green product stamp. You can also look for coffee cups with unique designs with vibrant colors, coffee cup icons, and swirls, to set your shop apart from those that use all white cups.  All colorful cups are made using water-based inks, and with mostly renewable resources, so you don’t have to sacrifice eco-friendly for appearance.

We are usually told that we can’t have it all; If we want practical and safe, we need to sacrifice style; If we want eco-friendly, say goodbye to saving any money, etc. But you can have it all. Most coffee cup products at our combine environmentally friendly components with other features. In the very least, all products are recyclable using mostly plant-based materials so you won’t have to add to the landfills whether aesthetic, cost-savings, the environment, or your customer’s safety is your main conc

When it comes to serving hot drinks, there is nothing quite as convenient as a paper cup. Paper cups are a great addition to any office or home and can be used in a variety of applications, from coffee and tea to coca-cola and other cold drinks.Convenient and disposable paper cups can useful for any situation.

 The beauty of paper cups is that they extremely inexpensive and can be produced on a massive scale. The PE/PLA coating inside paper cups make they become great temperature insulators .So paper cups ideal for containing hot liquids without risking burning and scalding hands. Compostable and recyclable of paper cups, making them simple to dispose of after use.

 Paper cups aren't just great for hot drinks, however they can be used for cold beverages as well and are perfect for keeping drinks cooler for longer periods of time. There are a variety of lids and straws that can be attached to paper cups, making them more versatile and helpful. All in all, paper cups are a great solution for those looking to serve refreshments quickly and conveniently.Affordable and durable paper cups making them an excellent choice for all types of hospitality applications.

Are you looking for a more environmentally friendly disposable paper coffee cup？One such alternative gaining popularity is the PLA-coated ripple wall coffee cup with a bagasse lid.

PLA, or polylactic acid, is a bio-based and biodegradable material made from renewable resources like corn starch or sugarcane. It’s a popular choice for sustainable packaging due to its ability to break down in a composting facility without causing harm to the environment. The ripple wall design makes paper cups sturdy and more resistant to heat, which is essential for coffee lovers who want to avoid spills and leaks, especially while on the go.

The PLA coating on the cup provides an additional layer of protection, making it resistant to water and oil, which is ideal for hot drinks. The coating also acts as a barrier, preventing the transfer of any unwanted flavors or odors to your coffee or tea.

In combination with a bagasse lid, which is made of a by-product of sugarcane processing .These paper cups are not only eco-friendly but also the lids fit securely on top of the cup, reducing the risk of spills or leaks while keeping your drink hot for longer.

The combination of ripple wall design ,bagasse lid and PLA coating makes these ripple wall paper cups an ideal choice for environmentally-conscious businesses and individuals . These eco-friendly and biodegradable paper cups, companies can show their commitment towards sustainability practices while offering their customers a perfect cup of coffee.

Disposable food containers or soup cup have become an integral part of our fast-paced life. They offer unmatched convenience, especially for events. This article will explore the manifold benefits of using disposable food containers for events.

The Convenience Factor

The following is the convenience factor for disposable food containers.

Easy Portability and Storage

Microwave and freezer safe

Easy Portability and Storage

One of the main reasons event organizers choose disposable food containers is their convenience. They are light, compact, and designed for easy transport, making them perfect for catering large events. Plus, leftovers can be stored directly in these containers, saving you time on cleanup.

Microwave and Freezer Safe

Most disposable food containersare microwave and freezer safe, meaning they can hold a variety of foods and accommodate different serving needs. Whether you need to keep food warm in a microwave or in a freezer, these containers have you covered.

Aluminumis a key component of a circular economy, as it can be recycled and reused multiple times, reducing the need for new aluminum production and helping to reduce emissions, conserve energy, and reduce waste.

By recycling styrofoam, we can help to reduce the need for new aluminum production, conserve energy, and reduce waste, as well as reduce emissions by avoiding the production of styrofoam, which is a non-biodegradable material that can take up to 500 years to decompose.

Economical and Business-Smart

It includes the following perks:

Cost-effective solution

Attracting and retaining customers

Maintaining Food Safety

Disposable food containers can enhance food safety at events. They are typically sealed with a lid, keeping food secure from contaminants and ensuring it stays fresh.

Reducing Cleaning Hassle

Disposable containers significantly reduce the amount of cleaning necessary after an event. Simply dispose of them after use, saving time and labor on dishwashing and sanitation.

Variety and Customization

There is a vast variety of disposable customized food containers.

Wide Selection of Sizes and Shapes

Disposable food containers come in a wide range of sizes and shapes, offering a flexible choice for different types of food. Whether you are serving a full meal or bite-sized snacks, there's a container that's the perfect fit.

Customization for Branding

Many suppliers offer customization options for disposable food containers. This allows businesses to add their logo or brand message, enhancing brand visibility at events.