Arbothane 1245 is a one part Polyurethane Sealant which cures on exposure to moisture vapour to form a tough but flexible rubber. Arbothane 1245 has good adhesion to concrete, brickwork, metals and many other common construction substrates.

Joint Size Suitability

  • Joint Width: Minimum 6mm, Maximum 25mm (single application); for advice on multiple applications please contact Adshead Ratcliffe Technical Services Department.
  • Joint Depth: Minimum 10mm on porous substrates Minimum 6mm on non-porous substrates, Maximum 20mm
  • Width: Depth ratio (within above min/max restrictions) 2:1 butt joints 1:1 lap joints