Apply Discount Code
FORFS443
FS4/43 43mm Brush Draught Excluder 3M Length Aluminium Carrier
Main image
Click to view image in fullscreen
![]()
FS4/43 43mm Brush Draught Excluder 3M Length Aluminium Carrier
In stock
Delivery Information
| Delivery Time Frame | Delivery Information |
| Next Working Day By 1PM | When an order is placed by 3pm for next working day on certain items |
| Standard Delivery | Usually delivered in 2 to 4 working days |
| Delivery Charges | |
| UK Mainland | Prices start at £3.95 for very small items, £6.50 for small, £9.50 for medium and £20 for large/long items |
| Scottish Highlands & Islands, Northern Ireland & Ireland | Prices from £30, please see our delivery page for more info. |
View Delivery Information
£97.56
Incl. VAT
£81.30
Excl. VAT
Incl. VAT
Excl. VAT
Incl. VAT
Excl. VAT
Price is for/per each
-
+
Description
Reliable Perimeter Protection with the FS4/43 43mm Brush Draught Excluder 3M Length Aluminium Carrier
Industrial units, commercial loading bays, agricultural sheds, and busy domestic garages regularly face harsh weather conditions. Wide gaps beneath roller shutters, sliding barn doors, and oversized perimeter entrances allow persistent draughts, windborne debris, and moisture to seep into your building. Over time, unsealed entry points lead to uncomfortable interior temperatures, substantial heating and cooling losses, and accelerated wear on indoor machinery due to fine dust contamination.
The FS4/43 43mm Brush Draught Excluder 3M Length Aluminium Carrier provides an effective barrier engineered specifically for substantial gaps. Built around an upright 180-degree mill-finish aluminium extrusion, this heavy-duty brush strip firmly houses dense nylon filaments that adapt smoothly to uneven thresholds. Rather than binding or snapping against coarse concrete, tarmac, or timber sills, the flexible bristles ride along fluctuating floor heights to establish a dependable draught, pest, and acoustic shield.
Whether you are refurbishing an existing warehouse threshold or outfitting brand-new automated sectional doors, this durable sealing strip delivers reliable performance. It keeps workplace heating inside where it belongs, stops cold gusts from chilling staff, and prevents physical rattling on high-wind days, helping your facility maintain a safe, clean, and energy-efficient environment all year round.
Essential Performance Advantages
Resilient Type 6 Nylon Filaments
The core brush section is densely packed with high-grade Type 6 extruded nylon filaments. Unlike cheaper polypropylene alternatives that flatten permanently after repeated door cycles, Type 6 nylon offers exceptional bend recovery and elastic memory. This means the 43mm bristles spring straight back into shape every time the door opens and closes, preventing draught bypass and ensuring continuous closure against floor surfaces.
Broad Operating Temperature Range
Exterior door perimeters must endure extreme weather shifts throughout the year. The Type 6 nylon filaments maintain full structural flexibility between minus 40 degrees Celsius and plus 100 degrees Celsius. They will not freeze, crack, or turn brittle during sub-zero British winter snaps, nor will they soften, curl, or clump together when exposed to direct summer sunlight on hot metal doors.
Sturdy Extruded Aluminium Carrier
The carrier is manufactured from high-grade architectural aluminium in a clean mill finish. Measuring 29mm in depth with a straight 180-degree vertical profile, this rigid track provides continuous support across the entire 3-metre length. It resists accidental impacts from foot traffic, pallet trucks, and machinery, providing a reliable mounting surface for direct face-fixing or flush bottom-fixing.
Corrosion-Resistant Core Wire
Inside the aluminium carrier, the nylon bristles are bound around a tough core wire and anchored by an electro-galvanised steel backing strip. This multi-layered assembly locks the individual filament tufts securely in place to stop them working loose under heavy friction, while the protective zinc coating guards against rust and internal moisture corrosion.
Versatile Installation Applications
The upright 180-degree carrier design makes the FS4/43 43mm Brush Draught Excluder 3M Length Aluminium Carrier suitable for a wide variety of commercial, industrial, and domestic settings where large threshold gaps need sealing.
- Industrial Roller Shutters and Sectional Doors Forms an effective seal along bottom rails to stop wind, dust, and rain from entering warehouses and factories.
- Commercial Sliding and Folding Doors Rides smoothly over track grooves and uneven thresholds without snagging or interfering with door travel.
- Agricultural and Storage Buildings Keeps out autumn leaves, blowing soil, birds, and small vermin along wide barn doors and shed entrances.
- Domestic Garages and Workshops Cushions garage door landings, stops draughts from cooling adjoining house walls, and dampens vibration during strong winds.
- Machine Guards and Enclosures Serves as a protective curtain and guide strip to capture airborne swarf, metal shavings, and mechanical debris around automated plant equipment.
Step-by-Step Installation and Fitting Guide
Stage 1: Measuring and Alignment
Measure the exact overall width of your door leaf or shutter bottom rail. Close the door fully and position the carrier against the mounting face so the 43mm nylon filaments lightly sweep the floor without crushing flat, ensuring smooth movement along the entire opening width.
Stage 2: Cutting the Aluminium Carrier
Slide the internal steel-backed brush strip out of the aluminium extrusion before trimming. Mark your required cut line on the mill-finish carrier and cut smoothly using a standard fine-toothed hacksaw, deburring the fresh cut edges cleanly with a small metal file.
Stage 3: Trimming the Internal Brush Insert
Measure and mark the steel brush backing to match the cut carrier length. Cut through the electro-galvanised metal spine using heavy-duty wire cutters or a hacksaw, then trim the nylon bristles cleanly across with sharp workshop shears or utility snips.
Stage 4: Reassembly and Secure Fixing
Slide the brush insert back inside the carrier and crimp both outer ends of the aluminium track lightly with pliers to lock the strip firmly in place. Drill pilot holes along the aluminium profile and secure the unit using appropriate self-tapping screws or bolts.
Detailed Specifications
| Specification | Material or Rating | Practical Details |
|---|---|---|
| Overall Length | 3.0 Metres (3000mm) | Continuous single-piece track, easily trimmed on site with a hacksaw. |
| Bristle Projection | 43mm Exposed Trim | Designed to bridge substantial gaps underneath industrial and commercial doors. |
| Carrier Height | 29mm Depth | Provides a solid mounting flange for screws, rivets, or fixing bolts. |
| Filament Construction | Type 6 Nylon | High mechanical memory and wear resistance against uneven concrete floors. |
| Operating Limits | -40°C to +100°C | Retains flexibility in freezing cold and does not degrade under hot sunlight. |
| Carrier Construction | Extruded Aluminium | Rigid upright 180-degree profile finished in standard mill aluminium. |
| Core and Backing | Electro-Galvanised Steel | Zinc-coated internal channel and wire preventing filament pull-out and rust. |
Need Expert Guidance on Your Sealing Project?
If you are unsure whether the 43mm brush projection or 180-degree upright carrier is the right fit for your door threshold, our knowledgeable team is here to help you select the ideal draught excluder configuration for your premises.
Contact Our TeamSpecification
| Manufacturer | Formseal |
|---|---|
| Finish | Satin Anodised Aluminium |
| Dimensions | 3000mm x 43mm |