Contact Us: [email protected]

Call For Us: +86 18367930013

All Categories


Home >  News & Knowledge >  News

we have determined that the STC (Sound Transmission Class) acoustic isolation ratings for the product in question is 42.


On July 4th , 2024, Hangzhou Biyou Building Materials Technology Co., Ltd. conducted the sound insulation test. During the test, we installed various products, including the Acoustic Batwing Seal, Fire and Smoke Seal, Acoustic Perimeter Seal, Automatic Door Drop Down Seal, and Door Threshold Plates. We are pleased that these installations achieved an impressive STC acoustic isolation rating of 42.


Get in touch