Tesa fiberglass tape. To carry out clean and reliable sealing and repair work on walls, a high-quality adhesive tape is essential. With this self-adhesive fiberglass tape, tesa offers the perfect solution for various applications. Efficient repairs on drywall and other clean surfaces are made easy with this tape. It creates smooth transitions between walls and ceilings. Repairing seams between drywall panels or covering joints in walls and ceilings can be done in no time. The fiberglass tape is suitable for clean, dry, and dust-free surfaces and can be applied to both smooth and rough substrates. These surfaces can be plastered immediately. Thanks to the fiberglass material, this tape stands out for its durability and longevity. A robust all-purpose sealing tape for a wide range of applications. Tesa - more than just tape. Tesa is one of the world's leading manufacturers of self-adhesive products, offering numerous solutions for innovative fastening, mounting, packaging, renovating, repairing, insulating, or protecting against insects, dust, and drafts.