svt is one of Germany’s largest passive fire protection groups, manufacturing the PYRO-SAFE range of penetration seals, intumescent coatings and fire-protective boards and installing them nationwide from Seevetal. Its A 391 and A 391-T intumescent material holds DIBt allgemeine bauaufsichtliche Zulassung Z-19.11-1934, the PYRO-SAFE DG LS and DG-CR LS coatings hold Z-19.11-2143, and the PYRO-SAFE Bag cable seal is approved under Z-19.53-2377. The group also carries out documentation and periodic inspection of installed Abschottungen.