Patent ID: 7799381

Claim:
A method for caulking or grouting a corner between two surfaces, the method comprising: a. Providing a roll of tape comprising two elongated strips of double-sided adhesive tape, an outer strip ( 12 ) and an inner strip ( 12 ′), said strips having a front side, a back side, an inside edge and an outside edge, said strips of double-sided adhesive tape being spaced apart in parallel arrangement to one another such that a channel is formed therebetween, with the back sides of said strips of double-sided adhesive tape being affixed in direct contact with a first side of a removable, non-adhesive flexible film ( 14 ) having a width greater than the combined widths of said strips of double-sided adhesive tape ( 12 and 12 ′), wherein the strips of double sided adhesive tape are affixed to the removable film such that the outside edges of the strips do not extend past the outside edges of the removable film, and further wherein said flexible film ( 14 ) is folded along the centreline of the channel between said strips of double-sided adhesive tape ( 12 and 12 ′) such that the second side of the flexible film is folded back upon itself thus leaving the folded edge of the non-adhesive film protruding past the inside edges of the strips of double sided adhesive tape, said tape being further rolled upon a cylindrical core ( 16 ), said core having a width equal to or less than the width of folded backing strip 14 , and further comprising a non-adhesive divider strip 18 arranged on top of the outer strip of adhesive tape such that the divider strip appears on the outside of the final turn of the tape roll, b. Peeling back a segment of the dividing strip from the end of the outer adhesive strip, c. Placing the roll of tape flush against a first of the surfaces forming the corner, and pressing the roll against a second of the surfaces forming the corner such that the now-exposed adhesive surface of the outer adhesive strip adheres to the second surface, and wherein the folded edge of backing strip 14 is inserted into the corner, d. Moving the roll longitudinally along the corner while maintaining the roll in flush contact with the first surface and applying pressure against the second surface, progressively unrolling tape from the roll and unpeeling the dividing strip, such that the outer adhesive strip is affixed to the second surface along the entire length of the corner, e. Cutting the tape from the roll, f. Unfolding the backing strip and pressing the inner adhesive strip against the first surface along the entire length of the corner, g. Removing the backing strip, revealing a parallel channel in the corner between the inner and outer adhesive strips, h. Applying caulk or grout in the channel between the adhesive strips along the length of the corner, and i. Removing the adhesive strips from the wall.