1/2" x 260" Better Quality White Thread Sealant Tape Unlike those stringy, flimsy tapes, that are stretched razor thin before you get them, Mill-Rose Better Grade is sixteen percent (16%) thicker than the tapes made for those who are not up on the current standards.Since this white tape is thinner, we recommend professionals, and those requiring a MIL-T-27730A or other standards for their thread sealants, to specify our full Density Tapes that are more cost effective and reliable.