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  • -FS/Plus51-04
  • -FS/Plus51-04
  • -FS/Plus51-04
  • -FS/Plus51-04

High Performance Rebated Drop Seal for Timber Doors

Quick Overview

Acoustic PLUS 51 rebated drop down seal - Fire tested to BS476: Part 20/22: 1987 to 60 minutes and achieving up to 51dB Rw in acoustic tests

Product Code - FS/Plus51

Availability: In stock

Excl. VAT: £23.87 Incl. VAT: £28.64

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Excl. VAT: £23.87 Incl. VAT: £28.64


Acoustic PLUS 51 rebated drop down seal - Fire tested to BS476: Part 20/22: 1987 to 60 minutes and achieving up to 51dB Rw in acoustic tests

  • Prefitted screws for quick and cost effective installation
  • Seal removable to assist installation or replacement
  • Seal drops on hinge side before lock side
  • 14mm maximum drop
  • Galvanised steel flat springs and reinforced actuators
  • Sound insulating seal - high quality 'V' zero class PVC rubber seal - self extinguishing
  • Fire tested to BS476: Part 20/22: 1987 to 60 minutes
  • Smoke tested to BS EN 1634-3: 2004

Available from stock in 830mm, 930mm, 1030mm - other sizes available to order from 330mm to 1230mm.

Each size can be cut back up to 150mm.



A comprehensive range of high performance seals designed to meet the needs of approved document E.

We offer a high quality range of acoustic drop down seals for the bottom of doors known as ‘dropseals’. The seals are activated by the closing action of the door, dropping down to seal only when the door is closed. This leaves the door threshold clear and flat, without the need for high fixed thresholds.

Our seals have been tested with and without threshold plates and also straight down to carpet.

These Seals are designed to form an effective barrier against the outside climate, noise, light, fire, smoke and insects. They provide a cost-effective solution for document part E and part M of the latest UK building regulations relating to disability, access and energy conservation. There are a choice of seals to suit glass and timber doors. All seals are available in a wide choice of standard sizes, and are easily fitted. Just cut the seal down to the door width, attach to the door using the pre-fitted screws, and adjust the drop down seal for a tight fit to the floor with the 3 mm Allen key screw located in the plunger cap. There is a selfaligning cap on the end of the plunger.

Product testing and quality control are very important to us. All our seals have been endurance-tested to 200.000 cycles. Our comprehensive range of acoustic testing is available upon request.

Features and Benefits

  • Tested and designed to work with a practical 3-4mm gap between the door and door frame
  • European manufactured
  • Simple cost effective installation
  • Tested with and without threshold plates
  • Tested straight down to carpet
  • Quality products you can trust and depend on

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