historic black white image of a US Navy submarine with NYC skyline in the background

77 steps

Emeco's unique 77-step craft process was first developed in 1944 to meet the US Navy's stringent requirements for mil-spec chairs for warships and submarines. We've seen no reason to change it. Because, as it turns out, what works for one demanding environment, also suits many, many others.

"It's a completely impractical process for a chair. Unless you want a chair that lasts forever." –Gregg Buchbinder, Emeco owner

Craftsman cutting sheets of aluminum at emeco factory in Hanover Pennsylvania
Shelf with various recycled aluminum extrusions

Recycled aluminum

This is our starting point - sheets and tubes of recycled aluminum. Which we cut, bend, form, weld, heat treat, hand brush and anodize in 77 individual steps.

Recycled aluminum is a smart material - it's lightweight, non-corrosive, fire resistant, anti-bacterial, endlessly recyclable and has a small carbon footprint. In its natural form, aluminum is soft and malleable. Perfect for us to shape into furniture. Which we then turn extraordinarily strong through an elaborate heat treating process. Engineering, chemistry and Pennsylvania elbow grease in perfect harmony.

A stack of Navy chair seat pans

Cutting & forming

We start with zero temper (soft) aluminum, which takes more work, but is what enables those smooth curves and soft angles for comfort. The cut pieces of aluminum sheets and tubes are formed into seat pans, chair frames and chair legs.

If you look at the chair legs of our iconic
1006 Navy chair, you'll see that the front legs are tapered and rounded on the outside. Each leg is formed from sheet aluminum and welded together, before it's welded to the seat. The seat pan, with its distinctive curved shape, is also stamped from flat sheet aluminum.

Welding

Every chair leg, every seat pan and every frame is welded together into a one-piece entity. We don't use any hardware or fasteners for our all-aluminum chairs and stools. The uniform, monolithic construction is part of what makes Emeco chairs extraordinarily strong.

Some products require meters and meters of weld. It takes a highly skilled craftsman to feed the welding alloy evenly for an even weld seam. Not too thick, not too thin.

Grinding

After welding, every weld is ground perfectly smooth and flush, to create a streamlined silhouette. Grinding down welds requires meticulous attention. If you don't apply enough pressure, the surface will appear bumpy. Grind too hard and the weld is compromised.

How the welds have been ground is one of the signs of handcraft that each Emeco chair carries. Another sign, unique to our 1006 Navy chair, are the three weld beads that each welder leaves at the top of the bars in the chair back. The craftsman's signature, unique to each chair, and never ground down.

Heat treating

Our proprietary heat treatment process is where the soft, malleable aluminum turns super strong. First, the chair is submerged in a 1000°F salt bath, which hardens the aluminum from the soft 0 temper to T4. The chair is then quenched in a cold bath.

Finally, the chair is baked in a special oven overnight, which takes the aluminum from T4 to T6, three times harder than steel. This process is part of the secret behind the unique strength and long lifespan of our furniture.

Hand brushing & anodizing

Our signature finish is hand brushed, clear anodized. First, we brush each part of the aluminum in the direction of the aluminum grain.

Then, the product is anodized, an electrolytic process that transforms the surface from aluminum to aluminum oxide. - The chair is submerged in our anodization tanks, where an electric current runs. The result is a super hard wearing, scratch resistant, outdoor approved finish that is next to the hardness of a diamond.

Hand polishing

Our hand polished finish is something extra. It takes us eight additional hours per chair and results in a sparkling finish.

Every product is polished three times. First, we polish all individual parts, such as chair legs. Then we polish assembled parts that have been welded together. Finally, we polish the whole product, every little curve.

The gleaming result is like a piece of jewelry to sit on. Time well spent, in our view.

Pairing materials

We often pair our recycled aluminum with other materials, such as soft textiles and warm wood. Upholstery is offered in graded in textiles and leathers as well as custom materials. All seat pads and chair seats are upholstered by hand in-house at the Emeco factory.

Our wood is sourced locally from sustainably managed forests and crafted in partnership with Amish woodworkers in neighboring Lancaster, Pennylsvania.

Recycling

Aluminum is endlessly recyclable. All off-cuts and scraps from the Emeco factory are collected and returned for recycling, to come back as sheets and tubes of recycled aluminum to craft into new furniture, closing the loop.