Functional Powder & Process Aid

Harmonite Functional Powder & Process Aid

Harmonite® is a unique, multi-functional, versatile base ingredient and additive that’s a high performance, economical alternative for organic and inorganic ingredients used in compounding formulations. It is a finely divided, organic coated, inorganic composite powder made from 100% post-consumer waste asphalt roofing shingles. Harmonite® has been shown to economically enhance properties of formulations in multiple applications.

  • Shorten cure time
  • Increase viscosity
  • Plasticizer effect in rubber compounds
  • Shorten mix time & reduce power consumptions
  • Increase resistance to deformation (increase load capacity)
  • Increase tack
  • Improve durability
  • Reduce or replace consumption of more expensive ingredients (Ex: Petroleum pitch, Gilsonite®, Carbon Black, tackifier resins)


Harmonite® can be used in the following markets and applications (and many more):

    Case (Coatings, Adhesives, Sealants, Elastomers): EPDM, Nitrile, Butyl, SBS, SEBS, SIS. Tackifier resins and other terpene based compounds.

    Construction (Residential and Commercial): Hot melt PSA used in flashing tapes and flooring underlayment membranes; Roofing Mastics; SBS & APP modified bitumen roofing membranes; Liquid applied roofing; Foundation waterproofing.

    Road Surface: Crack filler, cold patch, seal coat. Hot melt PSA road tapes.

    Rubber Compounding: EPDM (Hose), Nitrile (Mats), SBR/BR (Belt covers).

Harmonite® is operations friendly: Flows well; mixes readily; convenient to handle; easy to apply (rolled, brushed, sprayed, etc.)

100% post-consumer recycled product provides user the opportunity to contribute to LEED® credits and market the ‘green’ aspect of their products.

Contact an ARP Materials salesperson to learn how our products will transform your operation!