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The fire & acoustic door drop seals are designed for the gap between the door bottom and floor, it provides an excellent barrier to airborne sound and helping to ensure that the acoustic attenuation provided by a door set . The fire & acoustic door drop seals control the movement of the inner sealing strip through mechanical movement . When the door is closed , internal sealing strip will be down automatically to performance the tight sealing effects. When the door is opened, the inner seals will be automatically rise from the floor. Some of this serious seal can be fully hidden in the door bottom groove, the door beautiful surface will not be affected by installation of the seal. Location: install around the perimeter of plain or rebated door frame. Installation: through screws fastening. There is a decoration strip to cover the screws to make sure the beautiful appearance. Min / max gap: 0mm to 10mm. Length : 2100mm-2500mm. Seal material : silicon rubber or eddm seal. Function: prevents the leakage of noise, medium temperature smoke and energy around the edges of a door.
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The acoustic perimeter seal is installed around the perimeter of plain or rebated door frames using screw fastening, with a decorative strip covering the screws. It uses a silicon rubber or EPDM sealing material that drops automatically when the door closes to seal gaps of 0–10 mm and retracts when the door opens. Standard lengths are 2100 mm to 2500 mm. The seal blocks airborne sound, medium-temperature smoke and energy loss around door edges.
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Yongkang Bosslong Industrial & Trading Co., Ltd. is a B2B supplier based in China, listed on Global Trade Plaza since October 2026. Use Inquire now or Chat with supplier to ask Yongkang Bosslong Industrial & Trading Co., Ltd. for prices, specifications and documents for Acoustic Perimeter Seal.
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