Fix and seal bitumen surfaces with reliability using Sika’s specialized bitumen-based sealant. Sika BlackSeal®-1 is a versatile single-component sealant that bonds effortlessly to concrete, masonry, metal, timber, and all types of bitumen coatings—including polymer-modified roofing—without the need for primer. Its quick tack time, easy application, and ability to work on damp surfaces make it ideal for repairing flashing, roof penetrations, and tanking membranes—perfect for Kiwi DIYers and trade projects.
