About Us

Leveraging our expertise in the construction and decoration sector since 2006, we established the CORSTONE brand in 2015, specializing in acrylic and solid surface adhesives.



CORSTONE operates under the name PROTEK Acrylic Adhesive Industry and Trade Ltd. Co., and is the sole authorized and domestic manufacturer of solid surface and acrylic adhesives in Turkey.



Since our inception, we have prioritized quality, reliability, and technical support, delivering our products to both domestic and international markets. With our NSF-certified product portfolio, we offer professional solutions in many areas, primarily kitchen and bathroom countertop systems.



All our products are manufactured at our headquarters in Tuzla, Istanbul, and are delivered to our customers exclusively through direct sales. We do not have dealerships or intermediary sales channels.



By combining our industry experience with continuous development, we strive to make CORSTONE one of the preferred adhesive brands in Turkey and worldwide.