DATE - 1970

In 1970, the Eames Office developed two new designs for plastic chairs, using a new formulation of fiberglass that made it possible to make the chair seats and backs of plastic resin with the shock mount connection molded-in, instead of being applied after the molding process. The two-piece secretarial chair came in three versions, the EC 228, the EC 328, and the EC 428. The EC 228 and EC 328 were desk height chairs, with two different thicknesses of padded seat and back. The EC 428 was a drafting-height chair, and it came with a steel foot ring. 

Additional Information

In addition to durability, the plastic chairs were considered another kind of alternative to the molded plywood chairs on which they were based. All of these came with a contour molding seat and back pad, providing a posture-supporting chair. They had both height and depth adjustments to fit individual posture needs. Multiple upholstery options were offered. The bases were polished aluminum. The back brace, which provided a flexible connection between the two pieces of the chair, was chrome plated. All of these two-piece plastic chair models were discontinued in 1981.

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