Waterproof grade
The waterproof grade of waterproof PVC bags is usually indicated by IPX. Common reliable waterproof grade marks include IPX8. IPX8 indicates that the waterproof bag can be immersed underwater for a long time. Generally, it can maintain its waterproof performance at a depth of 5 to 10 meters or even deeper. It is suitable for underwater activity scenarios such as swimming, rafting, and diving. It can effectively prevent water from seeping into the bag and protect the items inside.
Purchasing skills
Material quality
When choosing high-quality waterproof materials, PVC is a common option. It has excellent waterproof performance and durability, effectively preventing water from seeping into the bag. However, it is necessary to choose PVC products that are odorless and of moderate thickness to avoid leakage caused by being too thin.
In addition to PVC, materials such as TPU also have excellent waterproof performance and can be selected based on actual needs and budget.
Sealing design
Sealing performance is one of the most important factors for waterproof bags. Reliable sealing designs, such as waterproof zippers, sealing stickers or roll designs, can all ensure that water is prevented from entering the bag. The double sealing design is more reliable and can effectively prevent moisture from entering, ensuring the safety of the items inside the bag.
Appropriate size
Choose the appropriate size of waterproof PVC bags according to the actual use. If it is used for waterproofing mobile phones, the appropriate size should be selected based on the phone model. It should neither be too large nor too small to ensure that the phone can be safely placed in the bag and there is sufficient operating space. For instance, some waterproof bags for mobile phones are 17cm*10cm in size and are suitable for most mobile phone models on the market.
If it is used for storing other items, the size of the bag should be determined based on the size and quantity of the items, leaving a certain margin to facilitate the retrieval and placement of items.
Practical function
Consider other functions of the waterproof bag, such as shock resistance and scratch resistance. For some scenarios where valuable or fragile items need to be carried, waterproof PVC bags with shockproof and scratch-resistant functions can better protect the items and deal with various unexpected situations.
Some waterproof PVC bags also support underwater touch function. The sensitivity depends on the thickness of the material. It is recommended to choose products made of high-transparency PVC material with a thickness of 0.15-0.2mm, so that mobile phones and other devices can be conveniently operated underwater.
Color and Design
Transparent waterproof PVC bags are a good choice. They can make the items inside more conspicuous and facilitate viewing and operation. For instance, a transparent design of a waterproof phone bag enables users to clearly see the phone screen underwater, making it convenient for taking photos, recording videos or checking information.
You can also choose waterproof PVC bags of other colors according to your personal preference, but be sure that the color does not affect the observation of the items inside the bag.
We Committ To Serve All Kinds Of PVC/ EVA Bags, Cosmetic Bags, Canvas Bags And Paper Bags With Custom Service!
Shanghai Chenhuan Industrial is a manufacturer which is specialized in the research, development and production of all kinds of bags and packaging. Our products include PVC bags, EVA bags, TPU bags, PE bags, paper bags, cosmetic bags, canvas bags and tote bags. We provide OEM service to the material, the size, the style and the printing.Official website Address:https://www.chenhuanind.com/
