A hotel room piece of furniture doesn’t die because of the panel. It dies because of the edging, which swells near the basin, comes away at the corner knocked by the trolley and leaves a grey lip that the guest photographs. On every front exposed to water and knocks, the specification that lasts eight years instead of three is 2 mm ABS edging bonded with reactive polyurethane adhesive, and the extra cost on a 120 cm bathroom unit runs between €15 and €30. On the rest of the furniture, where nobody passes and nothing gets wet, one millimetre with a traditional adhesive is more than enough.
Contents
What actually happens when an edge comes unstuck
Classic hot-melt adhesive is based on ethylene vinyl acetate. It’s applied at around 200°C, cools, bonds, and stays thermoplastic forever: heat it up again and it softens once more. A worktop where the guest sets down the kettle, or a front twenty centimetres from a heated towel rail, works at temperatures that, over a few summers, soften that line of glue. Add the bathroom’s steam cycles and detergent sprayed three times a day in exactly that spot.
Reactive polyurethane adhesive behaves differently. It cures with the moisture in the air over five to seven days after bonding and becomes irreversible: from that point it never turns liquid again, it withstands over 100°C and isn’t afraid of water. It’s applied at a lower temperature, between 120 and 140°C, so it also stresses the panel less.
Laser or hot-air bonding is a different matter altogether. There’s no adhesive: the edging has a functional co-extruded layer that’s fused directly onto the panel’s edge. The result is a zero joint, meaning no visible dark line, and it’s the finish to use on whites and light colours, where the glue line gets dirty and within eighteen months becomes a grey thread that no housekeeper can remove.
| Bonding | Indicative extra cost | Heat resistance | Water and steam | Joint line | Where to use it |
|---|---|---|---|---|---|
| Hot-melt EVA | baseline | up to 70-80°C | poor over time | visible, 0.1-0.2 mm | interiors, backs, unexposed sides |
| Filled EVA | +5-10% | up to 80°C | fair | barely visible | wardrobe doors, bedside tables |
| Reactive PUR | +€0.60-1.20/lm | over 100°C | excellent, irreversible | thin | bathroom, worktops, kettle area |
| Laser or hot-air | +25-40% on edging | over 100°C | excellent | none, zero joint | visible light-coloured fronts, suites |
Thicknesses: 0.4, 1, 2 mm, and when you need 3
0.4 mm is essentially an adhesive disguised as edging. It covers the edge and nothing more, doesn’t round off, absorbs no impact and cuts at the first knock. It makes sense on the internal sides of a carcass and on backs, where nobody reaches.
One millimetre accepts a small scraping radius and withstands the normal life of a wardrobe door. It’s the sensible standard for the inside of a room.
Two millimetres allows a rounded 2 mm radius on the edge, and that radius is the technical reason it’s chosen: a rounded edge doesn’t chip when a trolley hits it, and the housekeeping trolley hits it roughly once a day per room. It goes on low-level fronts, on corners exposed towards the corridor, on worktops and on the whole bathroom unit with an integrated or countertop basin.
Three millimetres is used on worktops and on reception counter edges, where you need mass to absorb real impacts. Above 3 mm the edge starts to read as a frame and changes the look of the piece, so it needs deciding with the designer, not on the production floor.
Commercial widths follow the panel: 22 or 23 mm for 18-19 mm panels, 28 mm for 25 mm, 43 mm for a bonded 38 mm panel. If a quote lists 22 mm edging on a 19 mm panel laminated on both faces, the numbers don’t add up, and the bare edge will show once it’s routed.
Where it fails first, in order of frequency
The bathroom always wins. The exact weak point isn’t the front of the unit but the internal cut for the basin hole and the waste pipes, which in the workshop is often left bare. Water gets in there, the chipboard swells from underneath, the panel gains a few tenths of a millimetre in thickness, and the outer edging, which had been perfectly bonded, gets lifted by the support moving beneath it. Anyone looking at the unit assumes a bonding fault, but the fault is thirty centimetres away. The fix costs fifty cents: moisture-resistant panel to EN 312 type P3 for bathroom fronts and backs, and all internal cuts sealed with varnish or a film gasket.
The second point is the shelf where the kettle sits, when the unit is melamine-faced and the edging is EVA. The third is the lower corner facing the corridor, hit by vacuum cleaners. The fourth is the wardrobe shelves in seaside properties, where relative humidity stays above 70 per cent for months.
On all these points the choice of substrate matters as much as the choice of edging, which is why the debate between melamine and solid wood in contract furniture needs to be made zone by zone rather than for the whole order, while on surfaces high-pressure HPL panels offer a more stable edge for the edging to adhere to.
How to check it during inspection, in two minutes per piece
Running a fingernail against the edging, pressed towards the panel, finds no step and no give on a good bond. If the nail goes in, the edging is already lifting.
A gauge on the thickness, because edging declared as 2 mm that measures 1.3 is the most common silent substitution of all, and nobody spots it by eye on the finished piece.
The glue line seen against backlight from the side: on a light colour it should be invisible or nearly so. The edging colour compared with the panel under 4000K lighting, not under workshop lamps, because a tone difference invisible at 3000K becomes obvious under corridor lighting.
Running a fingertip along the whole edge radius, to feel where the cutter stopped short or ate into the material.
For critical pieces there’s the steam test, from the German school: an hour of steam jet five centimetres from the edge, then you measure the swelling. It’s a test to request on the sample room before sending the whole order into production, not on every piece, and within two hours it separates a supplier who understood the specification from one who used whatever was in stock.
What to put in the specification
You need five pieces of information per zone, not an adjective. Edging material and thickness, adhesive type, scraping radius, colour or finish code, and required resistance with the verification method. A properly written line reads like this: 2 mm ABS edging, reactive PUR bonding, 2 mm radius, colour matched to the panel, resistance verified with a steam test on a sample.
A specification like this in the furniture specification moves the quote by little and moves the working life by a lot. I’d add ABS in place of PVC, which costs a few cents less but contains chlorine and is excluded from most environmental protocols required in new-build hotels.
On cost, the material itself is nearly irrelevant: 1 mm ABS edging runs between €0.45 and €0.90 per linear metre in 2026, 2 mm between €0.90 and €1.80. The edging process itself costs €1.20 to €2.50 per metre, moving to PUR adds €0.60 to €1.20, laser brings edging to €2.50-3.50. A bedside table has six to eight linear metres of edging, a 120 cm bathroom unit has around fifteen. Across a whole room, the jump from EVA to PUR on all bathroom fronts costs between €25 and €50.
What can be repaired and what can’t
An EVA-bonded edge that lifts can be reactivated with controlled heat and pressed back into place: the local fitter does this, it holds for a year or two, then it lifts again. A PUR edge can’t be reactivated, and that’s precisely its strength: if it’s come away, it’s come away because of a failure in the panel underneath, so you replace the piece. That’s why the stock of doors and fronts needs deciding alongside the other spare parts and finishes to keep in store, in the range of 3-5 per cent of pieces for each recurring size.
The rest is discipline: no detergents sprayed directly onto the edge, a wrung-out cloth rather than a wet one, and a check of the bathroom edges once a year within the furniture maintenance programme. An edge that starts lifting is fixed with ten minutes of work; the same edge six months later has taken the panel with it, and then you’re replacing the door. The logic here is the same as with scratch-resistant finishes: you pay for it in the design, or you pay for it in operation, and in operation you pay three times as much.
Frequently asked questions
Is ABS or PVC edging better for hotel furniture?
ABS. The mechanical performance is equivalent, but PVC contains chlorine, is excluded from almost every environmental protocol used in newly built hotels, and is more problematic to dispose of at end of life. The price difference is a few cents per linear metre.
Is the zero joint worth the extra cost?
On visible light-coloured fronts, yes, because the EVA glue line collects dirt and within twelve to eighteen months becomes a grey thread that won’t clean off. On dark fronts, interiors and backs it makes no difference, and the 25-40 per cent premium on edging isn’t justified.
Why does the edging only swell on the bathroom unit?
Almost always because water gets in through unsealed internal cuts around the basin hole or the waste pipe openings, swells the panel from underneath and lifts the edging from the outside. It’s avoided with P3 moisture-resistant panel and sealing of all unedged cuts, even before changing the type of adhesive.
What thickness should I ask for on bedside tables?
One millimetre on general surfaces and two on corners exposed to passing traffic, with a rounded radius. On bedside tables for hotels the point that wears out first is the front corner at knee height, hit every day by the housekeeping trolley.
