8 Pcs 14”x16” Expanding Foam Packaging for PC & Irregular-Shaped Items – Shockproof Expandable Packing Foam, Protective Computer Shipping Material for Electronics & Fragile Devices
Price: $24.59
(as of Jul 06, 2025 00:02:10 UTC – Details)
Product Description
Expanding Foam Packaging
Umail’s expanding foam bags are generally compressed prior to activation, thus they possess a small volume, which is one of their significant advantages. Due to their small size, these foam bags are convenient to carry and store. You can effortlessly put them in your garage, warehouse, or toolbox for later usage. Umail’s quick expanding foam bag is widely applied in safeguarding fragile items during transportation and storage, such as electronics, when moving a PC, glassware, ceramics, and other delicate items. Utilizing quick expanding foam bags can decrease waste and the burden of cleaning work and safeguard the quality of the items.
PC Packing Foam
According to our experience, when using the expanding foam bag to protect your computer, you should place it in the computer case as soon as the bag starts to expand. The bag will automatically adapt to the shape of the computer inside, providing protection. Do not wait until the bag has expanded significantly before inserting it into the computer case, as the metal of the case may cut into the already expanded bag when forcefully stuffing it in. Also, you should not forcefully stuffing 2 bags at the same time as the pc case is not enough. If it is really necessary to use 2 bags, please wait until the first bag is completed before putting in the second one.
Easy to Use, Professional Experience
Step 1
Press firmly on “L” symbol
Step 2
Slap “L” and “R” with both hands quickly. Pat 20-25 times within 8 seconds. Wait for liquid expand and break through L/R area, quickly distribute liquid evenly throughout bag. Note: Only simple spreading the liquid to all corners of the bag is required here (e.g., follow the video instructions). If you keep spreading during the foaming process, it will disrupt the progression, causing an unsmooth foaming reaction and insufficient expansion
Step 3
Put the bag in the box, place the item on the bag, and apply little pressure to shape the foam around the item.
Step 4
Repeat to create another foam bag
Effective Alternative to Other Packing Methods!
Tips for Use
If the foam doesn’t cover the entire bag, it could be because you didn’t spread the liquid evenly throughout the bag. You should try patting the bag quickly 15-25 times, aiming to complete within 8 seconds. This will help distribute the liquid evenly and ensure full coverage. Additionally, make sure to keep the bag flat and avoid overfilling to prevent the foam from spilling out.Before using Umail’s expanding foam pack, make sure you have a clear idea of where you want the packing foam to expand and how much you will need to use. This will help you avoid overfilling and wasting shipping foam.Watch a tutorial: We provide tutorial at page, if it’s your first time using the expanding foam packaging, consider watching a tutorial or instructional video online to get a better sense of how much the foam will expand and how to apply it properly. This will help ensure that you get the best results and that the expandable foam doesn’t expand more than you intended.
PERFECT PACKING SOLUTION: Umail’s expanding foam for shipping are used to use on an industrial scale for packaging odd shaped products, or oddly shaped items, meters, vases, crafts, and even a fully built PC with GPU installed, pc packing foam. They are great for shipping fragile items.
WORK QUICKLY: When you crack “L” symbol it immediately comes in contact with the reactant in the “R” symbol. You have only a few seconds to thoroughly combine the two before the final product bursts through a membrane and fills the envelope, so it’s super important that you don’t start making the foam and expanding it until you have all the supplies you need right there and you’re ready to go. Once you get started, you’ve only got a short amount of time before the foam hardens up and feels like a Styrofoam cup.
EASY TO USE: Place foam bag on desk, crack “L”, you will hear “peng” sound, then slap “L” and “R” with both hands quickly. Pat 20-25 times within 8 seconds. Then wait for liquid expand and break through L/R area, and quickly distribute liquid evenly throughout bag. Note: Only simple spreading to all corners of the bag is required here (e.g., follow the video instructions), do not keep spreading, as it will disrupt the foaming process. Once you’ve done that, you should position your item and gently push it into the expanding foam. In just a few seconds, the foam will harden and form a bespoke mold around your object, providing optimal protection as it envelops even the tiniest components
WHAT YOU WILL GET: 8 pcs individually packaged expanding foam packaging bags. We recommend used for box size of 8″x8″x8″. Please note that the heat generated when slapping the pc shipping foam bag is normal and it will soon return to room temperature, just like holding a hot cup of coffee.
WATCH TUTORIAL: If first time user, watching tutorial or instructional video at listing to get a better understanding of how foam expands and how to apply it properly. This will help ensure a good results and prevent expandable foam from expanding more than intended
SHIPPING PC: According to experience, when using expanding foam for pc shipping, please place it in case as soon as bag starts to expand. It will automatically adapt to the shape of computer, providing protection, not wait until bag expanded significantly. Be careful to avoid sharp objects.
Customers say
Customers find the foam packing material easy to use and say it works well, with one mentioning successful use for shipping a desktop computer. However, several customers report issues with the foam not expanding fully.
