Door hardware
Door sealing products for manufacturing plants, cold stores, food processing areas, cleanrooms and fire-rated openings, organised by mounting position on the opening: frame perimeter, meeting stile, door bottom and threshold. Selection is governed by the gap range to be sealed, sealing element material, working temperature range and fixing method.
Frequently asked questions
What does a fully sealed opening need?
An opening has four separate leakage zones: the frame perimeter (jambs and head), the gap between leaves on a pair, the gap beneath the leaf, and the floor at the threshold. Each zone takes a different product family: perimeter gasketing, astragals, door sweeps or automatic door bottoms, and thresholds. Leave one zone open and air and sound will pass through exactly there, so the whole opening performs only as well as its weakest zone.
Should I buy finished seal sets or seal sold by the metre?
Finished sets such as magnetic perimeter gasketing suit replacement on installed doors because they are already cut to the leaf edge. EPDM weatherseal sold by the metre suits door fabricators or non-standard sizes that must be cut on site. On the product pages, unit SET means a set, MTR a metre and H87 a single piece.
Which working conditions should I state before choosing a seal material?
Three conditions usually rule out the wrong choice: the lowest temperature (cold stores), how often the area is hosed down or chemically cleaned (food processing), and whether the opening is fire-rated. EPDM handles weather and ozone well, silicone stays flexible across a wider temperature range, and a fire door may only use seals that belong to that door's tested configuration.
What do ANSI/BHMA A156.22, A156.21 and AAMA 701/702 on the categories mean?
ANSI/BHMA A156.22 covers door gasketing and edge seal systems, naming products by their position on the opening; A156.21 covers thresholds; A156.10 covers power operated pedestrian doors. AAMA 701 and AAMA 702 from FGIA are performance specifications for pile weatherstrips and polymer weatherseals sold by length to door fabricators. The standard shown on a category tells you which scope the product family falls under; it is not a certification of each individual item.
How long does door sealing hardware usually last, and what shows it needs replacing?
Service life depends far more on cycle frequency, direct sun and cleaning chemicals than on age alone. Signs that replacement is due include seals that have hardened and no longer spring back when pressed, fine surface cracking, flattened or shedding pile, and daylight visible through the gap with the leaf closed. A simple check is to close the leaf on a sheet of paper: if the paper slides out freely, that point has lost contact.
What door hardware suits food processing areas that are washed down with pressure hoses?
In regular washdown zones, avoid parts with crevices between insert and retainer where residue collects, and prefer anodised aluminium or stainless steel retainers with stainless fasteners. Sealing inserts should be solid, smooth-surfaced material that tolerates alkaline cleaners and hot water; pile weatherstrip is hard to clean and is best kept out of these areas. For PVC strip curtains, choose strips that unhook individually so they can be taken down and washed.
