Laminated Magnetic Flux Strips, also known as Type G Burma-Castrol Strips, have a high permeability steel core with 0.002 in / 0.05 mm thick brass cladding on both sides. The core material contains three slots of varying widths, resulting in discontinuities that appear as linear indications in a magnetic field. The strips are commonly used for power pack equipment and yoke inspections with wet visible materials, but they can also be used with dry magnetic powders. Laminated Magnetic Flux Strips are more rigid than QQIs and do not easily conform to curved surfaces.
