Intumescent seal especially for wooden doors

PROMASEAL®-HT is an intumescent fire protection laminate based on graphite that ensures a secure and reliable seal against the spread of smoke and fire. It creates high pressure on expansion when exposed to high temperatures and forms a stable, compact char that seals gaps or openings quickly. PROMASEAL®-HT is characterised by an increased expansion factor and expansion pressure.

Further Information


  • Wooden doors;
  • Glazing;
  • Fire protection and access panels;
  • Facades;
  • Construction joints in walls and ceilings


  • Reliable and aesthetic seal against fire and smoke;
  • High expansion factor;
  • Easy to install;
  • Resistant to atmospheric effects (light, heat, frost, UV radiation, humidity);
  • Free from organic solvents

Please note
All physical and mechanical values are averages based on standard production and tested according to internal procedures. The typical values are given for guidance. The figures can change dependent on the test methods used. If a particular value is of prime importance for a specification, please consult Promat Technical Department.