Is PE foam tape waterproof?
Detailed explanation of waterproof performance of PE foam tape
PE foam tape indeed has excellent waterproof performance, especially for products that have been specially designed and certified to achieve high waterproof levels (such as IPX8), and has been widely used in consumer electronics and other fields.
The following is a detailed explanation of the waterproof performance of PE foam tape:
1. Waterproof level certification
◉ Some high-performance PE foam tapes have passed the IPX8 waterproof certification. This means that they can be soaked continuously for 30 minutes in an environment with a water depth of 1.5 to 30 meters, still maintaining stable performance without leakage, and meeting the high standards and rigorous testing requirements of consumer electronics products.
2. Structure and material properties
◉ PE foam tape is usually made of polyethylene (PE) foam with a closed cell structure as the substrate. This structure can effectively prevent water infiltration and invasion.
◉ It is coated with high-performance adhesive (such as acrylic adhesive) on both sides, which not only provides good adhesion, but also enhances sealing performance.
◉ Some patented designs (such as CN202022301977.0) mention that this type of tape has a multi-layer structure (such as adhesive layer, PE foam substrate layer, release paper layer), with a total thickness of up to 100-200 μ m, ensuring waterproof, dustproof, shock resistant, and pressure resistant properties while being ultra-thin.
3. Application Fields
The waterproof properties of PE foam tape make it very suitable for various electronic components that require waterproofing, such as:
◉ Screen bonding and sealing for smartphones, tablets, and wearable devices.
◉ Waterproof and dustproof sealing of battery cover and camera module.
◉ Shockproof, cushioning, and dust-proof measures for speakers, LED shading, and various waterproof gaskets.
4. Other characteristics
◉ Buffer seismic resistance: The closed cell structure also has good impact absorption, which can protect the equipment from the effects of vibration and impact.
◉ Temperature resistance and weather resistance: Some products (such as certain models of SEKISUI) have good high and low temperature resistance (such as long-term temperature resistance of 180 ° C and short-term temperature resistance of 200 ° C) and weather resistance.
◉ Environmental protection and processability: Some products adopt low odor, low VOC (volatile organic compound) technology, and have good die-cutting and punching processing performance, which can adapt to narrow frame design (the processing frame can be as narrow as 1mm).
5.summary
PE foam tape, especially those with closed cell structure and special waterproof design, does indeed have reliable waterproof performance. They can effectively prevent moisture from entering, while providing buffering, sealing, and bonding functions, and are one of the important auxiliary materials in modern electronic device waterproof design.