Scotch® Flatback Tape 250 is used for paint adhesion testing applications where a stronger paper backing is needed. Scotch® Flatback Tape 250 has an aggressive rubber adhesive that provides instant adhesion to a wide variety of surfaces. The treated flat stock backing has good tensile strength to resist breakage. It offers solvent and moisture-resistance to minimize bleed-through in applications. Scotch® Flatback Tape features a special backsize treatment provides easy-to-use controlled unwind. 3M no longer qualifies Scotch® Flatback Tape 250 to meet the inactive specification MIL-F-18264D. It has been used to conduct testing according to ASTM D-3359;however, this test method does not endorse or suggest that any particular tape must be used.