Polymer Modified Bitumen


Ever increasing traffic intensities, higher axle loads, increased tire pressures and unfavorable wheel configurations result in increasing deterioration of asphalt pavements. Deterioration, manifests in raveling, rutting, surface cracking, fatigue and reflective cracking, resulting in dangerous traffic conditions, a shorter lifetime and higher maintenance frequencies.

By improving the asphalt mixture properties, the lifetime of the pavement will be extended. The best results are obtained by incorporating specific polymers to the bitumen. Sealoflex® comprises a group of high performance polymer modified binders for use in heavy-duty asphalt pavements; including guaranteed projects. Since its introduction in the early eighties, Sealoflex® has proved its value in practice in terms of durability and life cycle costs. Today Sealoflex® is manufactured and applied worldwide.


Asphalt mixes based on Sealoflex® binders are characterized by:
  • Low temperature susceptibility
  • High elastic recovery
  • High resistance to fatigue
  • High flexibility high stability
  • High resistance to deformation
  • Excellent recovery
  • Excellent adhesion
  • Ductile behavior
  • High resistance to low temperature cracking

These specific properties of Sealoflex® asphalt pavements provide excellent resistance to raveling, fatigue, permanent deformation, surface cracks and reflective cracking, also under extreme climate conditions.


Sealoflex® bitumen can be cost effectively incorporated into asphalt pavement layers as follows:

  • At traffic lights and major junctions where rutting or corrugation can be prevented
  • In open and extremely open, thin, surfacing, where raveling can be prevented
  • In structures in which the layer thickness of the asphalt mixtures must be reduced
  • When resurfacing or inlaying cracked asphalt pavements
  • In impermeable pavement structures to prevent damage caused by spillage of chemicals and fuels
  • In light weight asphalt mixture recipes
  • At structures where high traffic volumes and wheel loads occur
  • On airports, sea port areas and other heavy loaded pavements to prevent deformation and cracking
  • In grouted macadams to prevent shrinkage cracks and damage caused by oil leakages
  • On bridge decks to prevent rutting and cracking
  • As part of joint less/silent transitions
  • As part of the asphalt solar collector system
  • In asphalt mixtures where a highly reduced temperature during production and paving operations is preferred

Product Groups