Abstract: A joint is formed between adjacent sheets of wall board, particularly in the fabrication of ceiling assemblies in manufactured housing, by applying a pressure-sensitive imperforate paper tape, burnishing it, wetting it, and then applying flexible joint compound over the tape. The flexible joint compound rapidly forms a skin which will receive paint, texture coating, or other finish prior to the complete curing of the flexible joint compound. The retained flexibility of the flexible joint compound, which lasts for at least twenty-four hours, permits the joint to be tolerant of displacement, such as the racking and twisting imposed on a ceiling assembly in transportation.

Abstract: An unperforated base layer has a pressure-sensitive adhesive on one side, and a release layer on the other to form a tape which may be applied from a self-wound roll to the seam between two fire-rated gypsum wall board panels to form a fire wall structure.

Abstract: The joint between two drywall panels is taped with a paper tape which is backed with a pressure sensitive adhesive. After burnishing the applied tape with a metal or other stiff blade, a water-soaked sponge is moved along the burnished tape to soak the outwardly facing paper surface. The drywall mud is then applied to the wetted paper tape to bridge the joint between the panels without raised or protruding portions of the paper tape, thereby presenting a more continuous and aesthetically satisfying bridge between the panels.

Abstract: A self-adhesive wall board joint tape has a paper base layer with a mud or plaster receptive surface, the other surface has a pressure sensitive adhesive. A transfer liner is applied with a release surface against the adhesive surface of the paper base layer, and is coated on the opposite side with a low-tack releasable adhesive. When wound into rolls the transfer liner low-tack adhesive engages the untreated surface of an underlying base layer. The pull strength of the low-tack adhesive is selected to be greater than the pull strength of the high-tack adhesive on the release surface of the transfer liner. When unwound from the roll the transfer liner is adhered to the non-adhesive paper base layer, and the adhesive high-tack surface of the paper base layer is presented for immediate adhesion, without the need to remove a backing.

Abstract: To assist in rapid taping of seams between adjacent drywall units, a tape is provided in rolls. The tape has a first layer of flexible paper material with an inwardly facing pressure-sensitive adhesive coating thereon. A second layer of reinforcing woven fiber material overlies the first layer. A third layer of flexible material overlies the woven fiber material to encapsulate the fiber material between the first layer and the second layer. The third layer has an outwardly facing release coating such that the first layer adhesive will releasably engage the third layer for manual separation of the tape when rolled upon itself. The adhesive is formulated to maintain adhesion even when wetted by an overlying layer of drywall mud. Furthermore, the release coating on the third layer accepts and allows the adherence of drywall mud. The tape may be used in fire wall applications. Perforations may be provided in the tape to facilitate adhesion.

Abstract: To assist in rapid taping of seams between adjacent drywall units, a tape is provided in rolls. The tape has a first layer of flexible paper material with an inwardly facing pressure-sensitive adhesive coating thereon. A second layer of reinforcing woven fiber material overlies the first layer. A third layer of flexible material overlies the woven fiber material to encapsulate the fiber material between the first layer and the second layer. The third layer has an outwardly facing release coating such that the first layer adhesive will releasably engage the third layer for manual separation of the tape when rolled upon itself. A crease is formed along the center of the tape to facilitate positioning of the tape in a wall corner. The self release properties of the tape allow it to be easily dispensed and applied without the need to remove a backing. The adhesive is formulated to maintain adhesion even when wetted by an overlying layer of drywall mud.