About A Chair AAC 16 by Hee Welling

HAY describes the AAC 16 as having "clean, curved lines and slender, symmetrical legs" that maintain "the same minimalist qualities as the rest of the collection." Without armrests, it is 58 cm wide. The base is available in black or white powder-coated steel, or in chrome-plated steel.

This model is stackable. HAY explicitly states: the four legs are positioned under the seat at a rounded angle that frames the shell "for optimal comfort and stackability." This is what distinguishes the AAC 16 and 17 from the rest of the steel-based family, and what makes them suitable for use in meeting rooms or communal spaces.

The shell: recycled polypropylene, what HAY calls "2.0"

The seat and backrest form a single injection-molded shell made from post-consumer plastic waste: this is what the "2.0" in the color names refers to. The material is mass-dyed: a scratch does not reveal a different color underneath, and maintenance is limited to soapy water. On lighter shades, slight variations in hue are inherent to recycled material.

The base: steel tube, and what the chrome changes

The base is made of bent steel tubing, with a powder-coated or chrome finish. Powder coating is a kiln-baked powder: the layer is thick, matte, and withstands table-leg impacts better. Chrome is a shiny electrolytic deposit that is harder and fingerprint-resistant, but shows visible marks if scratched. Both can be cleaned with soapy water; neither likes abrasive products.