Selena is a Wrocław-headquartered construction-chemicals group of around eighteen hundred people and thirty companies in nineteen countries, best known for its Tytan Professional brand. Within passive fire protection its evidenced product is a fire-rated polyurethane foam covered by ITB-KOT-2017/0093, held by the company in its own name in ITB’s national register, for filling linear joints and gaps between fixed building elements — a firestop linear seal rather than ordinary window foam. It is listed here as a product manufacturer on that single evidenced assessment; the group is not a fire-protection specialist and its wider range is adhesives, sealants, insulation and waterproofing.