RIW Cementjoint is an advanced, elastomeric, highly tear resistant, breathable, waterproof composite tape. When embedded in the Cementseal or Cementflex materials, it gives a highly flexible, impermeable seal over ‘live’ cracks and expansion/construction joints.

  • Impermeable to water under 100m head of hydrostatic pressure
  • Exhibits 600% elongation
  • Adaptable, for use over construction and expansion joints
  • Excellent UV and chemical resistance
  • Weather resistant