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

In today’s eco-conscious world, businesses and individuals are looking for smarter, more sustainable food packaging solutions. That’s where the 800ml Bagasse Oval Food Box with Clear Dome PET Lid shines. Designed to balance environmental responsibility with functional elegance, this container is perfect for serving fresh fruit, desserts, salads, or takeout meals—without harming the planet.

 

Compostable Strength Meets Clear Presentation

Made from natural bagasse, a byproduct of sugarcane processing, the 800ml base is 100% biodegradable and compostable. It's sturdy enough to hold hot or cold dishes and resists soaking and leaking. The crystal-clear PET dome lid provides excellent visibility, making your culinary creations look as good as they taste while ensuring freshness and spill protection.

 

Ideal for Cafés, Caterers, and Green-Minded Consumers

Whether you're a café owner, catering business, or an eco-conscious foodie, this food box is a practical and attractive packaging option. Its oval shape offers a sleek, space-efficient design, while the large 800ml capacity allows for generous portions. Use it to serve fruit medleys, desserts, or gourmet meals—guilt-free and plastic-conscious.

In today’s eco-conscious world, both consumers and food service providers are seeking packaging solutions that are functional, safe, and kind to the planet. The PFAS-Free 5-Compartment Sugarcane Plate is a game-changer for sustainable dining. Made from renewable sugarcane bagasse, this compostable plate offers an environmentally friendly alternative to plastic and foam, without compromising durability or convenience.

 

Designed with five separate compartments, this eco-friendly food container is ideal for serving meals with multiple portions—whether it’s a school lunch, restaurant combo, or catering event. It keeps foods neatly separated, enhancing presentation and preventing flavor mixing. The PFAS-free composition also ensures that no harmful chemicals are released into food, making it a safer option for both health and the environment.

 

Beyond its functionality, the sugarcane plate is fully compostable and biodegradable. After use, it breaks down naturally without leaving harmful residues behind, reducing landfill waste and supporting zero-waste goals. Its sturdy construction allows it to handle hot, cold, dry, or saucy foods with ease, making it a versatile solution for both takeaway and dine-in services.

 

At Biosettings, we believe sustainability should be built into every meal. Our PFAS-Free 5-Compartment Sugarcane Plate reflects our commitment to high-quality, plant-based food packaging that meets the needs of modern businesses and eco-conscious consumers alike. 

As more individuals and businesses embrace eco-friendly practices, choosing the right tableware becomes essential for both style and sustainability. The PFAS-Free Biodegradable Compostable Sugarcane Square Plate from Biosettings is a modern solution for serving meals at parties, restaurants, or corporate events. With its sleek square design and plant-based material, this plate blends elegance with environmental responsibility.

 

 

Made from sugarcane bagasse, a renewable fiber leftover from sugar production, this square plate is fully compostable, biodegradable, and PFAS-free—meaning it contains no harmful chemicals that could leach into food or harm the environment. Its sturdy construction allows it to handle both hot and cold dishes with ease, making it an ideal option for everything from entrees to desserts.

 

These eco-friendly plates are not only practical but also reflect a commitment to greener living. Perfect for catered events, food festivals, takeout, and more, they help reduce plastic and foam waste while still providing a premium dining experience. The modern square shape also adds a touch of sophistication, making your food presentation look as good as it tastes.

 

At Biosettings, we believe that sustainability should be simple, stylish, and accessible. Our PFAS-Free Biodegradable Compostable Sugarcane Square Plate is just one example of our dedication to eco-conscious food packaging.

In today’s world, eco-conscious consumers and businesses are increasingly searching for alternatives to plastic and foam. The Square Eco-Friendly Sugarcane Pulp Tray in natural color offers a practical and sustainable solution for serving and packaging food. Made from 100% biodegradable sugarcane bagasse, this compostable tray is perfect for frozen meals, takeout, or deli displays, all while minimizing environmental impact.

This sugarcane pulp tray is not only compostable and PFAS-free but also sturdy and reliable for a wide range of food applications. Whether you're storing hot entrees or freezing pre-packaged meals, the tray holds up under various temperatures and maintains its shape without leaks or breaks. Its natural, minimalist appearance also adds a clean and modern touch to your food presentation.

With its eco-friendly design, the tray supports a zero-waste lifestyle and is an excellent option for restaurants, food manufacturers, catering businesses, and environmentally aware households. By switching to plant-based packaging, users contribute to a more sustainable food industry—helping reduce landfill waste and dependence on petroleum-based plastics.

 

At Biosettings, we are proud to offer innovative, earth-friendly food packaging solutions that don’t compromise on quality. Our Square Eco-Friendly Sugarcane Pulp Tray is a reflection of our commitment to sustainability and responsible sourcing.