The waterproof acoustic membrane is used in acoustic applications. It can provide a barrier against water and dust pollution and has good sound transmission. They can also prevent dust, splash, and ordinary drinks such as soda and coffee from falling into the water temporarily, and provide pressure relief and balance.
Provide a solution to protect the unblocked pressure relief holes without significantly limiting the ventilation. These holes are necessary to control the pressure fluctuation in the equipment and release the battery waste gas due to the changes in temperature, altitude, and sound pressure. Their advantages are high-temperature resistance up to 250 ℃ and low-temperature resistance down to – 196 ℃. The biggest feature of the waterproof and dustproof net is a sealed product. The waterproof level reaches IP67 (the product is placed in 1m deep water and soaked for 30 minutes without water). It meets SGS and ROHS environmental standards, such as ip52, IP54, ip57, IP64, and IP67
The most used waterproof mesh in die-cutting is saati in Italy and Sefar waterproof mesh in Japan, in black and white, model hf-420bh hf-380bhhf-300bh.hf-255bh, etc
I have encountered that the waterproof mesh and adhesive of the yarn pedicle are not firm, and the tesa 4972 4982 adhesive is not firm. After punching and cutting, it is layered; Later, it is often analyzed that 3M 444 and 3m467 / 468 can solve this problem. Secondly, it is not firm in the production process, and if the pressure of the pressure roller is not enough, a little pressure can be added.
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