Kalekim Kimyevi Maddeler Sanayi ve Ticaret AS engages in the manufacture of construction adhesives. It offers a range of waterproofing substances, tile and floor applications, paints, decorative and thermal insulation materials. The company was founded by Yilmaz Zeylan, Akin Özseçen, Besim Huni, Ahmet Parlak, and Ertan Özyalçin on November 6, 1973 and is headquartered in Istanbul, Turkey.