THERMATEX® ceiling tiles are made of modern, bio-soluble mineral wool, perlite, clay and starch with excellent physical properties in fire resistance and acoustic performance. THERMATEX® Alpha HD is the extremely absorbing plank ceiling from the Knauf AMF Acoustic Range. Plank tiles up to 1800 mm long enable rooms or corridors to be equipped with high absorbency whilst the material guarantees easy handling and uncomplicated construction. The plank tiles are also available in square format. The elegant white acoustic fleece provides a high quality surface.