Numerous areas inside and outside of a bus or coach require protection from standing water or water and dust ingress. Sikaflex® sealing solutions meet the high demands in terms of the weathering resistance. Therefore, bus customers rely on resistant and durable Sikaflex® polyurethane sealants for exterior joints and backfill applications. The latest silane terminated polymers (STP) adhesive sealants from Sika are not only isocyanate-free but also contain no phthalates.