How to test the functionality of a glass bottle?

Glass bottles are subject to various external forces during transportation, stacking, and daily use. We conduct mechanical tests that simulate actual scenarios to prevent product failures during end-use.

Leakage test: Use a negative pressure seal tester to place the bottle under a specific vacuum degree to observe whether there is leakage or bubble generation to ensure that the contents will not leak or be contaminated.

Drop test: This test simulates an accidental drop that may occur during transportation and handling. A bottle filled with contents (or a substitute) should not break or leak after being dropped from a specified height (such as 1 meter or 1.5 meters) onto a hard surface.

Stacking Test: To simulate warehouse stacking conditions, we apply a 5 kg weight (or the equivalent of 10 layers of bottles) to a stack of filled bottles for 72 hours. The bottles must show no deformation, collapse, or seal damage.

Bottle Cap Torque Test: A torque meter is used to measure the force required to open and close the bottle cap (typically 0.5-2.0 N·m, depending on the bottle size). This ensures that the force prevents leakage while allowing easy opening and closing for the end user.

Pump Head Functionality Test: For bottles with pump heads, the dispensing volume (with a tolerance of ±5%) and the stability of the dispensed liquid over 100 cycles are tested. "Dry pumps" (no liquid discharged) and uneven dispensing are not permitted.

Finally, we test the bottle's ability to fulfill its designed function based on its specific intended use:

Ease of dispensing: For squeeze bottles, measure the force required to dispense liquid (ideal for adults is 30-50 Newtons); for pump-top bottles, ensure that excessive pressure is not required.

Reusability (if applicable): For refillable bottles, perform a "clean-fill-seal" cycle test at least 50 times to ensure there is no wear on the bottle threads, cap, or pump tip.

Label adhesion: If the bottle has a label, test its resistance to water, oil, and friction to ensure it remains intact in humid or oily environments (such as bathroom skincare glass bottles).

skincare shampoo glass bottle

How Does The Floor Standing Air Conditioner Prevent The Growth of Mold and Bacteria?

Due to their large size and strong air volume, floor standing air conditioners are prone to mold and bacteria if not properly maintained. It can cause unpleasant odors and even affect health. Here are some practical methods to prevent mold and bacteria.

 

I. Treatment after use

 

1. Before shutting down, turn on the air supply mode. After the cooling or heating process is completed, do not immediately shut down the machine. You can first run it in the "air supply/dehumidification mode" for 10 to 30 minutes to dry the water on the evaporator and prevent mold growth in a humid environment.

 

2. Avoid prolonged standby: When the air conditioner is not in use for a long time, completely disconnect the power supply and keep your body dry.

 

 

II. Regular cleaning 

 

1. Clean the filter screen: Remove the filter screen every 2 to 4 weeks, and clean and dry it with clean water or neutral detergent.

 

2. Clean the evaporator and air outlet: It is recommended to clean the evaporator fins with a dedicated air conditioning cleaner every 1 to 3 months.

 

3. Chassis drain: Check whether the drainage is smooth to avoid moldy water.

 

III. Professional deep cleaning

 

1. Once a year: It is recommended to find a professional to do a deep cleaning, cleaning ducts, evaporators, condensers, and wind turbines, especially before the season.

 

2. High-temperature steam sterilization: Some services provide steam cleaning, which can effectively kill bacteria and molds.

 

IV. Management of use environment

 

1. Keep indoors dry: Avoid excessive humidity indoors. If necessary, it can be used in combination with a dehumidifier.

 

2. Regular window ventilation: Ensure air circulation and reduce bacterial breeding opportunities.

 

3. Avoid stacking sundries: Keep air circulation around the cabinet, and do not stack items that are easy to vacuum or wet.

 

V. Auxiliary protective measures

 

1. Activated carbon / silver ion filter: It can effectively inhibit bacteria and remove taste (to be selected according to the model).

 

2. Ultraviolet sterilization module: Some high-end models come with a UV lamp, which can assist sterilization.

 

Daily self-cleaning filter, once-a-year professional deep cleaning, and timely blow-dryer moisture after using. It is the key to preventing mold and bacteria from breeding in standing air conditioners.

 

We are a professional air conditioning manufacturer in China. If you have any questions, please contact us.

3-Piece Empty Aerosol Can



3-piece tinplate aerosol can is a sealed container composed of three independent metal components: the can body, the top and the bottom, which are combined through processes such as welding and crimping.


Parallel development of traditional and emerging fields

The food, pharmaceutical, and daily chemical industries remain core application scenarios, while new categories such as e-cigarettes have become growth highlights. Environmental policies are promoting the substitution of metal aerosol cans for plastic and glass packaging, especially in personal care and cosmetics.


Technological upgrading and green transformation

Optimization of production processes: Enterprises are accelerating the introduction of automated production lines and green technologies (such as energy-saving welding processes) to enhance product quality and production efficiency and reduce carbon emissions.


Material sustainability

The recyclability of tinplate aligns with the trend of a circular economy, and environmental policies are driving industry standardization and the improvement of recycling systems.

Why do your glass bottles always have problems?

From surface smoothness to pump head compatibility, we control quality across two dimensions.

I. Appearance Quality

Surface Smoothness: glass bottle bodies must be free of scratches, bubbles, pinholes, uneven shrinkage, and other defects. Even minute surface bubbles may harbor dirt or foster bacterial growth (posing significant risks for skincare and food products). We ensure uniform surface smoothness through a combination of visual inspection under natural light and tactile verification.

Color Consistency: Colors must closely match the color swatch or Pantone number confirmed by the customer, with no visually discernible color variation permitted within the same batch. This requires suppliers to possess advanced color matching systems and stable masterbatch addition processes.

Printing Durability: For screen printing, foil stamping, labeling, etc. Inspection should focus on print clarity, with particular emphasis on testing print adhesion and wear resistance. Common tests include the “tape peel test” (applying 3M tape and peeling it off to check for ink transfer) and the “abrasion test” (rubbing the printed surface over 50 times with a soft cloth to ensure no fading).

II. Size Compatibility

Bottle Dimensions: Measure critical dimensions such as the outer diameter of the bottle opening, height, and wall thickness using tools like calipers and projectors to ensure they fall within the tolerances specified in the drawings.

Fit between cap and bottle: The diameter, thread pitch, and height of the bottle neck must perfectly match the cap. Manual assembly testing verifies that the cap twists on smoothly without binding, neither too loose nor too tight. For flip-top caps, hinge operation must be tested over 100 times to ensure no risk of breakage.

Pump Head/Spray Nozzle Fit with Bottle Opening: For injection-molded bottles equipped with pump heads (e.g., lotion glass bottles) or spray nozzles (e.g., spray glass bottles), the inner diameter of the bottle opening and the flatness of the opening surface are critical. Dimensional deviations may cause pump head clogging or uneven dispensing. After assembling the pump head/spray nozzle onto the bottle, we conduct over 20 dispensing tests to ensure smooth operation.

skincare lotion glass bottles

The Relationship Between Urban Heat Island and the Air Conditioning Use

In recent years, the "urban heat island effect" has become an unavoidable question between climate change and urban development. At the same time, as a necessary piece of equipment in urban households and commercial buildings, air conditioners are also regarded as a key factor that influences the effect. So what is the relationship between the urban heat island effect and the use of air conditioners?

 

1. What is the urban heat island?

 

The urban heat island (UHI) effect refers to the urban areas where the buildings are too close, the traffic is too busy, and the energy consumption is too high; as a result, the temperature there is apparently higher than other cities nearby. Particularly in summer, the temperature in the center of the city is frequently 3℃-7℃ higher than in rural areas; partially, the temperature difference can reach 10℃.

 

Key reasons include:

 

Buildings and roads absorb heat strongly but dissipate it slowly at night.

Transportation and industrial facilities emit large amounts of heat.

Air conditioning units, refrigerators, and other cooling equipment release "waste heat" in operation.

Insufficient green spaces.

 

 

2. How does air conditioning use accelerate the heat island effect?

 

During the air conditioner cooling procedure, the indoor heat is expelled to the outside, and that heat is called waste heat. At the peak of the summer season, thousands of air conditioners work together, waste heat increases more and more, and the outdoor temperature is increased as well.

 

It behaves as:

 

Partial temperature increasing: In densely populated commercial districts or residential areas, the temperature on summer nights is often higher than in the suburbs.

Energy consumption cycle: Higher outdoor temperatures → hotter indoors → air conditioning runs harder → more waste heat is emitted → accelerates the heat island effect.

Electricity burden: Peak air-conditioning loads increase the burden on the power grid and may even cause power rationing or blackouts.

 

3. How does the heat island effect in turn affect air conditioning usage?

 

Higher cooling needs: The urban temperature is higher than the rural, so more and more people in the city will need to use the air conditioners.

Increased energy consumption: When the outdoor temperature increases, the air conditioner cooling efficiency decreases, and the power consumption increases.

Shortened machine lifespan: Under high burden operation for a long time, the compressor and key components are easily aging.

 

4. How to alleviate the conflict between the urban heat island effect and air conditioning?

 

Promote high-efficiency air conditioners: DC inverter air conditioners, R32 refrigerant, EVI technology, and such ways to reduce energy consumption and waste heat.

Strengthen the insulation for buildings: Insulation on walls, Low-E glasses, rooftop greenery, and such methods to reduce the reliance on air conditioners

Adopt renewable resources: Use solar air conditioners and solar heat pumps to reduce the burden on the power grid.

Urban regulations and improvements: Increase green spaces, water bodies, and ventilation corridors to enhance the city’s overall cooling capacity.

 

 

The relationship between air conditioning and the urban heat island effect is bidirectional. To solve this vicious cycle, the key is to improve energy efficiency, optimize city planning, and adopt more green energy. This will allow cities to enjoy the air conditioning and reduce the burden on the environment. We can deal with this issue by promoting high-efficiency products, adding more green spaces to the city, and using green energy. This is a duty ahead of us.

 

Is the Electric Auxiliary Heating Really Practical on Air Conditioners?

When we use the air conditioners for heating in winter, we see that as the outdoor temperature is very low, the air outlet temperature on the indoor unit will be down as well. As a result of insufficient heating inside of the room. To solve this issue, many air conditioners have been equipped with an electric auxiliary heating function (EA heating). So, is this additional function practical?

 

1. What is electric auxiliary heating?

 

Electric auxiliary heating, short for "EA heating," is the function under the air-conditioning heating operation. When the outdoor temperature is deeply low or the indoor temperature rises slowly, the AC system will use electric heating components to heat, auxiliarily increase the air outlet temperature, and hasten the rising of the indoor temperature.

 

2. Pros of the EA heating

 

Fast heating: Under the extreme cold environment, the compressor working efficiency decreases, then the electric auxiliary heating can supply heat immediately and increase the indoor temperature to a comfortable level.

Improved comfort: It helps to avoid cold airflow, making the air warmer and more comfortable.

Extreme climate response: Under the temperature of below -5℃ or -10℃, a normal air conditioner may not be capable of heating, while the AC with EA heating would ensure a basic heating supply.

Reasonable price: Compared with purchasing a heater additionally, the air conditioning units with EA heating would be cheaper.

 

Wall mounted air conditioner with heating

 

3. Cons of the EA heating

 

Higher energy consumption: The heating components have a low EER compared with a heating pump. If we rely on EA heating for a long time, the electricity bill will increase, apparently.

Unsuitable for long-term use: EA heating is better used as an emergent or auxiliary solution instead of long-term heating.

Comfort difference: Some EA heating design is simple; although it improved the air temperature, its overall comfort is not as stable as inverter heat pumps.

 

4. Comparison among normal heating, EA heating and ultra-low temperature heating pumps

 

Functions/Features Normal AC heating EA heating Ultra-low temperature heating pumps
Working Principle Heat pump cycle (Compressor heating) Electric heating element auxiliary heating EVI low-temperature enthalpy increase technology + high-efficiency heat pump
Applicable Temperature ≥ -5℃ ≥ -10℃ (assisted starting at low temperatures) ≥ -25℃, even -30℃
Heating Rate Medium, slower as temperatures drop. Fast, noticeable temperature increase within minutes. Stable and fast, even in extremely cold environments.
Energy Efficiency High efficiency (high COP value) Low energy efficiency, high power consumption Efficient and energy-saving, suitable for long-term use
Comfort The temperature fluctuates with outdoor temperatures. The airflow is warm but dry. The airflow is gentle and stable, providing a high level of comfort.
Electricity Cost Relatively economical Significant increase (long-term operation is expensive) Long-term operation saves energy.
Suitable Customers Southern regions/regions with less severe winters Short-term heating in cold regions Long-term heating needs in cold and high-altitude areas.
Typical Applications Daily heating for ordinary households Emergency or rapid heating For home heating, villas, commercial use, and the Nordic/Russian market.

 

5. People available of EA heating

 

Cold and high-altitude areas citizens: Northeast China, Inner Mongolia, Russia, and Northern Europe, where the temperature in winter is often below -10℃.

Families that need fast heating: Getting up in the morning or back home after work, we need fast heating for a warm environment.

People who need an economic plan: Compared with individual heaters, an air conditioner with EA heating is a cost-effective choice.

 

EA heating is absolutely practical. If the area you live in often keeps a temperature below 0℃ in winter, then it's better to choose the air conditioner with ultra-low temperature technology. Combined with EA heating, this ensures both energy savings and comfort in extreme conditions.

 

A Blessing for the Lazy & the Pursuit of Refined Living!

The stylish countertop water purifier turns drinking water into pure enjoyment.

 

Friends, have you ever faced these “drinking dilemmas”? 

Want a cup of warm water? You have to boil it first, then wait for it to cool down… by the time it’s ready, you almost forgot that you were thirsty! Craving a good cup of tea? Tap water always carries that odd taste, and ruining the flavor... so you end up ordering coffee delivery instead. Rushing in the morning? Boil water, wait for it to cool, fill your bottle… by the time you’re done, you’re nearly late!

And then looking at the dusty kettle in the corner, the bulky water filter hogging space, and those giant bottled waters that take superhuman strength to lift… exhausting, right? If you’re someone who longs for a touch of refinement in life but also admits to being a little “lazy” at heart, then this is the perfect drinking solution:

It must be convenient—ideally “one step to everything.”

It shouldn’t take up space, but it should still look great.

 

Most importantly, it should make you feel safe to drink—and maybe even make you fall in love with drinking water!

Honestly, this PU-T01 countertop water purifier will open up a whole new world for you! No exaggeration—it can completely cure your “drinking procrastination” and turn the simple act of drinking water into a little daily joy.

 

Lazy People Rejoice: Say Goodbye to Hassle—Drink Anytime You Want!

What makes the countertop water purifier irresistible is the “ultimate lazy-friendly” design!

No Installation—Plug & Play! Unbox it, find a spot on your counter (This countertop water filter is super compact), plug it in, fill the tank with tap water (Municipal water is sufficient.). Done! The whole setup takes less than 5 minutes. Forget about drilling, plumbing, or waiting for technicians. Whether you’re renting, renovating, or just hate trouble... Don’t afraid, your saver is coming!

Water in 3 Second, No More Waiting! Feeling thirsty? Walk up, press the button on the countertop water dispenser, and in just 3 seconds—you’ve got fresh purified water in your cup. Want warm water? You can also choose from multiple temperature options ( like 45°C for baby formula or 85°C for tea). Still instant! This hot and cold water dispenser let you to get rid of staring at a boiling kettle or waiting for water to cool. This sense of “instant gratification”, you have to experience it yourself!

One-Touch Control—Easy to Understand! The panel of the countertop water dispenser is simple and intuitive, with a thoughtful child-lock feature for families with kids. Changing the filter cartridge? Just a few easy steps, no fuss.

Time Saved = Time Enjoyed. All that time you used to waste boiling, waiting for cooling, and lugging water bottles can be saved. Now you can binge a show, do your makeup, or simply daydream. The countertop water dispenser help you achieve lazy living with value!

 

 

Style Meets Substance: A Chic Must Have for Every Home!

Convenience alone isn’t enough—for those who care about quality of life, appearances matter too! And the PU-T01 Countertop Water Purifier is truly where style meets performance.

Beautiful design: With sleek, minimalist lines and a matte finish, PU-T01 Countertop Water Purifier exudes premium texture at just a glance. Place it in your kitchen, living room, or even study—it instantly enhance the style of your room. It’s not just an appliance, it’s a modern lifestyle statement.

Compact & Space-Saving: Slightly larger than an A4 sheet of paper, this water purifier fits easily even on small countertop. Need to move it? The no installation design also makes it easy to move and place wherever needed.

Adds a Touch of Ritual to Life: Imagine using your countertop water filter to start your day with a refreshing cup of warm water in the morning. Then, in the afternoon, press the 85°C button to brew a cup of tea for friends. This countertop water purifier brings you convenience and elegance. This readily available high-quality drinking water experience is itself an attitude towards refined living.

 

 

Pure Taste, Elevated Experience!

Convenience and beauty may catch your eye, but the core of it all is pure, healthy drinking water.

Powerful Filtration: Using multi-stage filtration (PP cotton, activated carbon, and RO system), this countertop water purifier effectively removes chlorine, odors, and more—delivering water that’s truly safe to drink.

Upgraded taste: The difference is immediate—water tastes sweet and clean. PU-T01 Countertop RO Water Purifier can bring you a taste with naturally crisp, refreshing, and silky-smooth. Tea becomes more fragrant, coffee more layered—water quality truly makes the difference.

Every Sip, Peace of Mind: Perfect for families with children or elderly members—Its RO system guarantees safe, clean hot or warm water at all times. No more worrying, just effortless daily hydration.

 

The Perfect Blend of “Lazy & Refined” Living

The PU-T01 Countertop Water Purifier is more than just a tool for drinking water. It’s a lifestyle companion that perfectly balances effortless convenience with quality.

It transforms the simplest act—drinking water—into something lighter, smoother, and more graceful than ever.

It frees you from hassle, and instead makes you enjoy the process of drinking water.

It quietly yet steadily elevates your daily comfort and sense of quality.

 

If you’ve ever:

Felt tired of boiling, waiting, and carrying heavy water bottles…

Wanted cleaner, fresher water with a better taste…

Valued the design and aesthetics of home appliances…

Looked for modern solutions that save time and simplify life…

Then this purifier—especially the PU-T01 countertop water purifier—might just be the missing piece of your “lazy-yet-refined” lifestyle puzzle.

 

No complicated installation. Just plug it in, fill the tank, and enjoy. Its compact design fits seamlessly into any space—kitchen, living room, even your work desk—blending in like a stylish decoration piece. This hot and cold water dispenser brings crystal-clear water at just the right temperature, thanks to its smart heating options. These thoughtful details make life not only healthier, but calmer and more enjoyable.

In short, this stylish and ultra-convenient countertop water filter is one of the best investments you can make to boost your home happiness this year. Because at the end of the day, drinking well is the very first step to living well.

Is Your Way of Drinking Water Hurting the Planet?

Bottled water feels safe and convenient—and it is. But this seemingly healthy choice may be leaving behind a hidden cost for the environment.

 

Let Pureza introduce you to a smarter, cleaner solution: the countertop water purifier.

 

Think about it: you wake up, finish your workout, and consciously grab a bottle of water, believing it’s the healthier option. You prepare your meals with care, recycle diligently, and try to make every step eco-friendly. Tossing that plastic bottle into the recycling bin feels like part of your effort, too.

 

But could this “single-use” habit be canceling out all your other environmental efforts? Have you ever thought about switching to a greener way of drinking water?

 

Here’s the uncomfortable truth: the world’s obsession with bottled water is driving an environmental crisis, bottle by bottle. And that’s exactly where countertop water purifiers shine a light of hope.

 

The Shocking Numbers Behind “Convenience”

  • One million bottles every minute: Around the world, we consume one million plastic beverage bottles every single minute.
  • Recycling reality: In the U.S., only about 30% of plastic bottles are actually recycled [1]. Europe does better, but it’s still far from perfect—millions of tons of plastic end up in landfills or incinerators each year.

  • Centuries to decompose: A single plastic bottle can take up to 450 years to break down. Along the way, it turns into microplastics that seep into our soil and waterways.

Is bottled water really “pure”? Leaving aside the growing concern of microplastics in bottled water, what’s undeniable is the plastic waste it leaves behind—lasting far longer than us, our children, and even our grandchildren.

 

 

 

The Core Solution: Modern Home Water Filtration Systems

This is why high-performance home water purifiers are no longer optional luxuries—they have become essential appliances for eco-conscious households across Europe and America. They directly address the dual challenges of bottled water and tap water, and this countertop purifier is designed to fit seamlessly into any home setting.

 

1. The most effective tool to eliminate plastic waste — PU-T01 Countertop Water Purifier

 

At every moment you need water, simply fill your glass with crystal-clear purified water straight from your countertop water purifierThis means: Saying goodbye once and for all to mountains of plastic bottles and the hassle of recycling. Drastically reducing your carbon footprint by cutting ties with the production, packaging, and transportation chains of bottled water. Using modern home water purifier makes a one-time investment that pays off for years—for you and for the planet.

 

2. Purity and health that go beyond bottled water — Advanced Reverse Osmosis (RO) System

No more compromises with bottled water. This premium home water purifier uses advanced reverse osmosis (RO) system, certified by NSF and more. With its 3:1 low wastewater ratio, it delivers healthier, more economical, and highly efficient drinking water. Removes contaminants effectively. This countertop water purifier filters out residual chlorine, odors, microplastics, and other potential pollutants often found in tap water—offering a level of purity that surpasses many leading bottled water brands.

 

3. Enhances taste dramatically.

Great water makes great tea and coffee. Whether you’re brewing, cooking, or simply drinking, this countertop water purifier gives you refreshing, better-tasting water with every sip.

 

 

 

The Benefits Go Beyond Ecology

Undeniable purity.

The PU-T01 countertop water purifier is equipped with an advanced filtration system—featuring Reverse Osmosis (RO) technology—that removes many contaminants municipal systems may miss, including certain heavy metal ions, residual chlorine, and even microplastic particles. With it, you’re not only avoiding plastic pollution but also gaining convenient access to cleaner, healthier water.

 

Visible savings.

Let’s do the math: a family spending $20 per week on bottled water ends up throwing away over $1,000 a year—along with all those bottles. A high-quality water purifier can pay for itself within just a few months, requiring only one affordable filter replacement per year. Low cost, premium quality.

 

Make the change: Treat the Earth with kindness.

Breaking free from bottled water is a powerful, tangible step toward a sustainable lifestyle—with an immediate positive impact.

 

Are you ready to make a choice that benefits both your health and the planet? Discover our range of high-performance, NSF-certified countertop water purifier, designed for modern North American and European households. Find the perfect solution for your family’s needs and begin your journey toward pure, sustainable drinking water.

 

Small changes today create a big difference tomorrow. Choosing a sustainable water solution not only cuts everyday costs but also significantly reduces the environmental burden of plastic waste. Every drop of purified water is a promise to the future of our planet. Bring pure water within reach—without relying on the illusion of convenience bottled water provides.

Take this step today: it’s a commitment to your health and a heartfelt contribution to the environment.

 


[Shop Now for Your Purification System]

P.S. Not sure which system is right for your water quality? Chat with our water experts online, or take our quick quiz to get a personalized recommendation!

 

 

[1] https://napcor.com/news/2023-pet-bottle-recycling-reach-new-heights/

New Stock Women Sunglasses Butterfly Shape Vintage Style

branded stock lots wholesale

60% cheaper than fresh order !!!

Women Sunglasses Butterfly Shape Vintage Style

We have some Sun glasses stock from a friend's factory..

The brand is Helen Keller, a famous Chinese brand. It is the original brand in high quality. The Helen Keller sells good in Chinese market and the style of them is fashion and suit all over the world.

And the packing is one piece in a PP bag and 6 pieces in a boxer, 30 boxers in a carton.

And if we want the Glasses Cases and Glasses Cloth, the price is $1.12/pc(one case and one cloth).

Come to me, to get your sunglasses business start at stocklotsinchina.

stocklots onlineoriginal factory stock in chinasurplus stock lotchina surplus stockliquidation stock clearance

 

 

 

 

Top 5 Custom Foam Inserts for EVA Cases Benefits and Applications

When it comes to product protection and presentation, custom EVA cases have become a ideal solution for industries worldwide.  But what truly enhances their functionality is what's inside, the correct foam insert.  At Yisi Packing, we understand that a well designed foam insert can make all the difference in protecting, organizing, and showcasing your products.

 

In this article, we’ll explore the top 5 custom foam insert types used in EVA cases, their unique benefits, and where they are commonly applied.

 

1. PU Foam (Polyurethane Foam)

 

Best for: Lightweight, shock absorbing protection

Industries: Consumer electronics, medical tools, retail packaging

PU foam is soft, flexible, and highly shock absorbent, making it ideal for items that require gentle cushioning.  Its spongy texture allows for a snug fit around irregularly shaped products. It’s also affordable and lightweight, perfect for consumer products like cameras, beauty tools, and medical devices.

Benefits:

  • Lightweight and flexible

  • Absorbs shock and vibration

  • Cost effective for high volume packaging

 

2. PE Foam (Polyethylene Foam)

 

Best for: Durable, rigid support and reusable packaging
Industries: Tools, drones, instrumentation, industrial kits

PE foam is firmer than PU foam, offering better structure and durability.  It’s ideal for heavier items or equipment that need to be stored or transported repeatedly.  PE foam inserts also resist moisture and chemicals, which is a major plus for industrial and outdoor applications.

Benefits:

  • High durability and impact resistance

  • Good for repeated use

  • Water and chemical resistant

 

3. EVA Foam

 

Best for: Premium protection and branding
Industries: Luxury products, electronics, promotional kits

EVA foam is the same material as the outer shell of your case, offering a cohesive, high quality look and feel.  It’s semi rigid, meaning it holds its shape well while still providing excellent shock absorption.  EVA foam is also great for custom color matching and CNC, excellent for premium product packaging or promotional kits.

Benefits:

  • Premium look and feel

  • Excellent customization (color, logo, shape)

  • Long lasting structural integrity

 

4. Die Cut Foam Inserts

 

Best for: Custom fit protection for unique or complex products
Industries: Medical devices, instrumentation, collectibles

Die cut foam can be created from PU, PE, or EVA and is precision cut to fit your product’s exact shape.  This ensures maximum protection and eliminates shifting during transit. It's perfect for high value or sensitive products that demand a tailored fit.

Benefits:

  • Perfectly fits any shape

  • Offers maximum protection

  • Enhances presentation and unboxing experience

 

5. Pick and Pluck Foam (DIY Foam)

 

Best for: Low volume or adjustable storage
Industries: Hobbyists, toolkits, DIY, samples

Pick and pluck foam allows users to remove foam blocks manually to fit their items.  While not suitable for high end or mass market products, it’s great for prototypes, sample kits, or adjustable storage cases where product sizes may vary.

Benefits:

  • Flexible layout without tooling

  • Cost effective for small runs

  • Easy to customize on the spot

 

Choosing the Right Foam Insert

 

Each type of foam insert offers specific advantages depending on your product's size, weight, fragility, and usage.  At Yisi Packing, we work with clients to develop custom EVA case solutions with the perfect foam insert to ensure functionality, durability, and an enhanced user experience.

 

Need help designing your next custom EVA case with foam inserts?


👉 Contact us today for a free consultation or sample!