Cromar Flashband Lead Replacement Flashing 10mtr x 100mm / 150mm / 225mm

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Cromar Flashband Lead Replacement Flashing 10mtr x 100mm / 150mm / 225mm

Flashband Flashing Strip is a self adhesive bituminous sealing strip which is a superior quality, heavy duty, lead replacement.

Bonds instantly to wood, glass, metal, brick and cement, with a matt grey finish, & provides a permanent watertight seal.

Flashband is often used for repairing lead flashing, sealing valley gutters, repairing leaks in guttering and drain pipes, protecting insulation on pipes and tanks, repairs to greenhouses & for repairing roofing felt joints.


  • Length: 10mtr
  • Width: 100mm / 150mm / 225mm
  • Colour: Grey
  • Form: Resin modified bituminous mastic in roll form
  • Solids Content: 100%
  • Weight: 1.6kg per square metre
  • Temperature Resistance: 10 degrees c to + 100 degrees c
  • Tensile Strength: 1.6N/m square metres


  • Bonds to most building materials including masonry, brick, concrete, wood, slates, metal, concrete roof tiles, glass, plastic and roofing felt
  • Adhesive surface is protected by a removable backing



  • Surfaces must be clean and free from dust, grease, loose materials and ponding water
  • Gaps greater than 3mm should be filled with an appropriate filler
  • For adhesion on porous or uneven surfaces, the use of a primer is advised at a rate of 1.8 square metres per litre and allowed to dry
  • Do not leave the primer for more than 24 hours and therefore only coat an area enough for covering within the day
  • Some surfaces may require a second coat of primer therefore, apply once the first coat is dry
  • Cut the Flashing Strip to the length required
  • To avoid any creasing remove approximately 50mm of backing paper and carefully position the sealing strip, hold the backing paper firmly and remove it steadily from the sealing strip as the product is applied
  • Smooth into position using hand pressure. Using a seam roller or rounded wood smooth to ensure good contact and expel any air, especially on overlaps and at the edges
  • When laying adjacent rolls Flashing Strip should be overlapped by a minimum of 25mm for a watertight seal
  • The seam must be pressed firmly with a hand roller paying particular attention at the point of overlap
  • Precautions: Flashing Strip will not accommodate appreciable joint movement
  • Flashing Strip is not intended to withstand any form of vehicle/foot traffic
  • Avoid using Flashing Strip where it will come into regular contact with solvents and oils
  • Do not use Flashing Strip in conjunction with flexible pvc, vinyl or silicone sealants
  • If enclosed in a cementitious mix the product may become brittle
  • Any form of acidic or alkaline liquid will attack the product and should be avoided
  • Shelf Life: 12 months if unopened
  • Storage: Product must be stored in dry conditions between 5 degrees c & 25 degrees c