Multi-branch fibrillated polyolefin

Micron-level multi-branch fibrillated polyolefin quasi-cotton fiber

Usage detail

paint and adhesive component as asbestos replacement, thixotropic agent



  • Chemical resistance
  • Thixotropy
  • Viscosity control
  • Dispersion
  • Particle entrapment
  • Mouldability
  • Embossibility
  • Surface smoothness

This product is not being sold by Mitsui Chemicals Asia Pacific, Please contact to Mitsui Fine Chemicals, Inc..

  • Basic information


KEMIBESTO™ is dried and fluffed polyolefin synthetic pulp (SWP™) with multi-branch fibers that disperses readily in water or organic solvents. It is used for a broad range of applications such as thixo-agents and viscosity agents in coatings, adhesives and sealants, dispersion and particle entrapment in inorganic fillers, and binding agents in quasi-fiber products.


Thixotropy/Viscosity control

KEMIBESTO™ has superb thixotropic properties when added to coatings, adhesives and sealants. Because of its multi-branch structure (trunks of tens of microns, branches and leaves of microns), KEMIBESTO™ effectively adheres to itself and to other materials. It has high thickening properties that can be achieved with smaller amounts than inorganic fibers or silica thickening agents.

Dispersion/Particle entrapment

KEMIBESTO™'s multi-branch structure affords uniform dispersion and superb particle entrapment in nano-silica particles, diatomaceous earth, bentonite and glass fiber, among other materials.

Chemical resistance

KEMIBESTO™ is a polyolefin and therefore has high resistance to acids and alkalis.


Various coatings, adhesives, sealants and water-proof, putty, FRP, dryformed board, repair mortar and inorganic filler compound materials

Contact Us

Mitsui Fine Chemicals, Inc.
Functional Polymeric Materials Division, Functional Materials Business Sector