The unique functions of advanced institute technology microporous polyurethane foam

Most mobile phones sold in the marketPU FoamAll of them can withstand the test because every phone that leaves the factory has certain waterproof and dustproof functions.

The waterproof and dustproof performance of mobile phones should comply with the IP level standards for dust and waterproof of electronic devices established by the International Electrical Association.

The first number after the IP represents the level of solid particle protection (dust). The second number represents the liquid entering the protection.

Dust proof level

0: No protection

1: Prevent large solids from invading

2: Prevent the intrusion of medium-sized solids

3: Prevent small solids from entering and invading

4: Prevent solid objects larger than 1mm from entering

5: Prevent the accumulation of harmful dust

6: Completely prevent dust from entering

Waterproof grade

0: No protection

1: Water droplets entering the shell have no effect

2: When the shell is tilted to 15 degrees, water droplets entering the shell have no effect

3: Water or rainwater from a 60 degree corner has no impact on the shell

4: The liquid splashed onto the shell from any direction does not cause any harm or impact

5: Rinse with water without any harm

6: Can be used for the environment inside the cabin

7: Can withstand immersion in water for a short period of time (1m)

8: Immerse in water for a long time under a certain pressure

Nowadays, the concept of waterproofing includes different functions such as waterproof fog, waterproof droplets, waterproof water spray, etc.

To achieve a certain level of waterproof and dustproof capabilities and meet dust and waterproof standards, it not only relies on excellent design and craftsmanship, but also on the sealing materials used on various components and casings. Sealing foam is one of them, widely used in the sealing of various components in smartphones.

Advanced Institute of Technology Research Platinum SeriesConductive foamThe product is favored by many well-known mobile phone manufacturers for its excellent performance, providing sealing, cushioning, and cushioning solutions for smartphones.

Battery support

Motor pad

Sound chamber sealing

Camera sealing

Screen bottom buffering energy absorption

SIM card holder waterproof

Side key waterproof

Window sealing

Advanced Institute of Technology Platinum SeriesWaterproof conductive foamExcellent performance and unique advantages make it ubiquitous:

▶ Excellent compressive deformation resistance.

▶ Excellent rebound performance.

▶ Excellent stress dispersion.

▶ Excellent resistance to chemicals and moisture.

▶ Flexibility retention in harsh environments.

▶ Easy to form various complex die-cutting parts.

▶ PET tape adhesive (optional) reduces the adhesive coating process and has a cost advantage
At present, we have also noticed the occurrence of sealing failure caused by poor performance of some foam in the market. These foam performance defects can be summarized as follows:

Advanced Institute high-performance foam provides better sealing safety compared to slow rebound foam on the market, especially in resisting high-frequency vibrations.