It is a special Gypsum Board® type which has the ability to hold X-ray rays and also has high sound insulation.
Product Standard: EN 520 – TYPE DF
In Gypsum Board Suspended Ceiling Systems; It is the profile used in floor and ceiling in walled wall cladding systems.
It is a special Gypsum Board type which is covered with glass fibre mattress and has fire resistance for up to 3 hours.
It is used to protect outer corners against impacts and to obtain a smooth surface in drywall applications.