Formwork bracing leaves openings in the concrete wall after concreting and stripping. Fibre concrete sealing cones and sealing plugs for straightforward sealing of anchor openings. There are various seal versions, depending on the requirements with regard to appearance, building physics, weathering and construction. The stoppers and cones are glued using the tried-and-tested Repoxal®. This systems meets the requirements for sound insulation, fire protection and pressing water loads.