At Duplas, we bring silence, comfort, and an eco-friendly touch to your buildings with insulation solutions made from 100% natural cork. From under-screed insulation to underlay for parquet flooring, and from sound and thermal insulation to vibration-damping boards, feel the power of nature in every detail. Durability, sustainability, and aesthetics—all in one.
We offer natural cork solutions tailored to a wide range of industries—from construction and automotive to stationery and footwear. Discover Duplas quality in insulation, thermal and acoustic isolation, vibration control, as well as decorative and industrial applications. Whatever your need, the smart solution is clear: Duplas!
Duplas is a leading company in its sector, manufacturing Natural Cork Products in its modern production facility. What sets Duplas apart is its ability to produce not only for the construction industry but also for the automotive, stationery, footwear, and promotional sectors. It is the one-stop destination for natural cork products.
We offer a wide range of solutions including cork for sound and thermal insulation, cork underlay for parquet flooring, under-screed cork, rubber-enhanced cork boards, insulation cork, vibration-damping cork, cork panels, cork for footwear, cork blocks, gasket cork, and custom-made cork products tailored to your needs.
Founded in 1954, Duplas A.Ş. has been operating since 1974 as Turkey’s first and only cork factory, maintaining its identity as both a manufacturer and an environmentally conscious company. Since 2008, it has been rapidly advancing its corporate development efforts. Standing out in the insulation sector with the natural advantages of cork, Duplas effectively utilizes this raw material—particularly under its Ducork brand—for sound and thermal insulation solutions.
In its modern facilities, Duplas produces not only for the construction industry but also for the automotive, stationery, footwear, and promotional sectors, and exports to more than 14 countries.
Certified with ISO 9001, ISO 14001, and OHSAS 18001, the company continues to operate in Turkey and worldwide with a focus on sustainable success, prioritizing both customer satisfaction and social responsibility.
For any questions about our products, application areas, or custom production requests, feel free to contact us anytime. We are ready to provide the most suitable natural cork solution for your needs.
Cork is a 100% natural material obtained from the outer bark of the Quercus Suber (cork oak) tree. These trees typically grow in Mediterranean countries such as Portugal, Spain, Italy, and Algeria. They can live for 150–200 years and produce bark for up to 100 years. Cork oaks do not naturally grow in Turkey, although limited cultivation attempts are being made in Antalya and Izmir.
Cork is harvested by hand every 9–11 years and is classified according to its quality. More than 50% of its cellular structure is filled with air, and thanks to a substance called suberin, it provides water resistance, biological durability, and flexibility.
With its eco-friendly nature, cork supports sustainable living. It is a natural raw material that should be preferred to help protect both our environment and our future.
Oils and Resin Acids
Woody Substances
Soluble Acids
Natural cork bark obtained from the cork oak is carefully processed and transformed into materials that bring value to many industries. From harvesting and grading to cutting and industrial application, respect for nature and quality in production guide every step of our process. With Duplas, nature meets technology.
The outer bark of cork oak trees is carefully and manually stripped every 9–11 years during harvesting. The tree is not harmed and continues its natural growth cycle.
The stripped cork bark is boiled to clean it, flattened, and then stabilized for several days. This process helps the material maintain its shape and increases its durability.
Cork layers are graded according to quality. They are then cut or shaped to be transformed into products such as stoppers, boards, gaskets, or underlays.
The remaining pieces are ground into granules. These granules are used as raw material in many sectors, such as rubber-enhanced composites, insulation boards, and floor and wall coverings.
