When radiographing a weld it is important to clearly locate any possible defect areas on the weld. The lead marker tape placed alongside the weld seam will give an accurate indication of the suspect area, the numbered lead markers spaced at specific intervals on the marker tape will give a clear image on the processed radiograph. The standard range of sizes are from 0.5m to 15m in length with either 2cm, 5cm or 10cm spacings between lead markers.

Lead Marker Tapes have been made for the NDT Industry for over 20 years. KNES Lead Marker Tapes are individually manufactured by hand by a very dedicated team to ensure the tapes are made to the high standards required. These tapes are used to precisely locate the defect area of an inspected weld. They are hand made using a combination of waterproof cloth, cotton and double sided tape with a waterproof polyester cloth top tape to encapsulate the lead identification markers prior to stitching the edges. Tapes are available in many metric and imperial sizes and increments ranging from just 6 inches up to 30 meters plus. Any size or combination can be manufactured on request. Standard lead markers are 3/16" sharp face but other sizes can be used if required. Your company name can also be added to the end of each tape. Service temperature is a range of -50°C to 80°C / -58°F to 176°F.