PLANET MF Drop-Down Threshold Seal 460mm Sound Insulation 50dB PVC Aluminum Smoke Control

Product Overview

The PLANET MF Drop-Down Threshold Seal, 460 mm version, is engineered for installation in PVC and aluminum door profiles, providing effective sound insulation up to 50 dB and certified smoke control properties. This automatic drop seal features a 16 mm maximum drop with a high-quality silicone gasket, making it suitable for both commercial and residential buildings where acoustic and smoke containment are required.

A key advantage of this product is its cut-to-length flexibility, permitting shortening by up to 125 mm to accommodate non-standard door widths. This adjustability minimizes on-site fitting issues for installers and ensures compatibility across diverse door manufacturing projects. It is particularly recommended for OEM manufacturers, acoustic partition suppliers, and bulk procurement in projects demanding custom-fit door sealing solutions.

Key Features

• Sound insulation up to 50 dB ? reduces airborne noise transfer through door gaps to meet stringent acoustic requirements


• 16 mm drop seal action ? automatic lowering silicone gasket effectively seals the threshold when door closes


• Certified smoke control ? enhances fire safety compliance by preventing smoke leakage under doors


• Compatible with PVC and aluminum profiles ? designed for direct integration into modern door systems


• Shortenable by 125 mm ? allows adaptation to non-standard or custom door widths during installation


• Durable silicone gasket ? maintains long-term sealing performance in high-traffic environments

Technical Specifications

• Length: 460 mm


• Maximum Drop: 16 mm


• Sound Insulation: up to 50 dB


• Material: PVC and Aluminum


• Gasket Material: Silicone


• Shortenable by: 125 mm


• Smoke Control: Yes

Applications

Used in commercial, public, and residential buildings with PVC or aluminum door profiles to provide acoustic insulation and smoke containment. Suitable for fire-rated doors, partition systems, hotels, offices, educational facilities, and anywhere door bottom gaps require certified sealing for noise and smoke control. Commonly specified in OEM manufacturing and refurbishment projects.

Packaging & Shipping

Standard export packaging. Each unit includes the drop-down seal and necessary mounting accessories.