J Runö Warm Grey (Runö Grey) is a warm grey colored porcelain stoneware with a limestone appearance in a matt surface. Runö is very true to nature with fossil-like details and beautifully varying tone differences between the tiles. Inspired by the stone that is mined along the limestone belt that stretches from Öland, under the Baltic Sea and the old Swedish countryside on the islands off the coast of Estonia, and further through Tallinn up to St. Petersburg.  The limestone, which is marketed under several names, such as Baltic Grey & Reval Limestone, has been mined along this line for generations and has been used in buildings throughout Scandinavia.

Products in the series previously appeared under the name Runö Grey, but thanks to additions to the series, the name has been changed to more clearly describe the product's characteristics.

The product is listed in the database for buildingproducts that can be used in Nordic Swan Ecolabelled buildings.

Porcelain stoneware is industrially made from natural raw materials, mainly consisting of finely ground feldspar, sand and clay.
The material is dry-pressed under high pressure and then fired at high temperatures. The result is an extremely durable material we call porcelain stoneware!
The material can withstand strong cleaning agents, acids and foods as well as high wear from both pedestrian traffic and kitchen utensils.
Fits most surfaces in home environments as well as public spaces and surfaces.