klinkier

Klinkier is a dense, vitrified ceramic brick used primarily for exterior wall cladding and architectural details. The material is formulated to be weather resistant and durable, with a very low water absorption compared with standard clay bricks, making it suitable for exposed outdoor use.

Manufacture involves forming clay bodies into bricks (often by extrusion or moulding) and firing at high temperatures in kilns. The high-temperature firing vitrifies the surface and reduces porosity, producing a hard, compact brick with high compressive strength. Klinkier bricks can be left unglazed or finished with a glaze for decorative effects.

Color and surface appearance are influenced by the clay composition and firing regime. Natural colours range from red and brown to gray, while glazing allows additional tones and textures. The surface can be smooth, rusticated, or patterned.

Typical applications include building façades, cornices, window surrounds, and paving. The material is valued for long service life, low maintenance, and resistance to freeze-thaw cycles, salt efflorescence, and pollution.

Name and usage: the term klinkier derives from German Klinker (clinker). In several languages, including Polish, "klinkier" refers to this ceramic brick as a building material, particularly for exterior façades. Glazed klinker bricks are also produced for decorative features.