HarbisonWalker International (HWI) has been serving the aluminum industry for over half a century, and today it is one of the top refractory suppliers to the world’s largest aluminum producers. When you choose HarbisonWalker International, you’re choosing quality without compromise.

Every order is backed by aluminum application specialists who form close partnerships with our customers. We design custom solutions, manage inventory, and offer dedicated testing. Our partnerships result in energy savings, increased campaign life, and efficiency within the plant. We stay at the forefront of emerging technology and offer training to all of our customers.

Download: Refractory Solutions for Aluminum Brochure

Proven Refractory Products:


View our Product Catalog


  • Dedicated sales personnel ready to respond 24/7/365
  • 19 manufacturing plants producing refractory products in North America, Europe, and Asia
  • 30 North American global sourcing centers providing one of the quickest response times in the refactory industry
    • Usually shipping with same-day or next-day delivery
    • Staging and shipping to anywhere in the world
    • Ready-to-ship inventory of our best-selling refractories

Global Projects & Engineering:

  • Specialists in new projects offering a range of services, from refractory product supplier all the way to full installation partner
    • Greenfield construction
    • Manufacturing and plant modernization
  • Serving the advanced engineering needs of existing facilities
    • End-to-end delivery of refractories: drawings, products, and installation
    • Strong conceptual drawing capabilities with meticulous attention to detail

Installation, Service, & Support:

  • Support from HWI’s network of premier contractor/installers
  • Available benefits of a Value-Added Service (VAS) team:
    • Single-source responsibility that delivers cost savings
    • Just-in-time delivery of refractory materials, ensuring the freshest product on the jobsite
    • Inventory solutions
    • Quick response times, minimizing outages and downtime
    • More in-depth knowledge of your business, yielding the best refractory solutions
    • Embedded HWI team members and resources at your site
  • Our Advanced Technology and Research Center is the largest facility in the United States devoted to refractory development, quality assurance, and failure analysis.

Education & Training:

  • Ongoing educational seminars at our Advanced Technology and Research Center
  • Customized, on-site training for customers upon request
  • Webcasts and video training modules upon request



Product SDS
AL CLEAN A-94 A 95% alumina porous plug English
ALCOR® An 80% alumina, phosphate bonded brick English
ALCOR® 32 An 80% alumina, phosphate bonded brick with an alumina metal penetration inhibitor English
ALCOR® 60 A cured, phosphate bonded high alumina brick, non-wetting to aluminum metal English
ARMORKAST 80AL C ADTECH® An 80% alumina, aluminum resistant, coarse aggregate castable
ARMORLITE® 85AL An aluminum resistant, 85lb/ft3, insulating castable
ARMORTECH 65AL A 65% alumina, aluminum resistant, dense castable
ARMORTECH 65AL C A 65% alumina, aluminum resistant, coarse aggregate castable
ARMORTECH 65AL ON-LINE A 65% alumina, aluminum resistant, fast-curing castable
CLIPPER® DP A super duty fireclay brick
CORAL® BP A burned, phosphate bonded 80% alumina brick
DV-38® An 80% alumina, burned, phosphate bonded brick
EXPRESS® ARMORKAST 80 AL MAX An 80% alumina, aluminum resistant, free flowing castable
GREENGUN®-85 P PLUS An 85% alumina, phosphate bonded gunning plastic
GREENKLEEN®-60 PLUS A 60% alumina, andalusite containing low cement castable
GREENLITE®-45-L AL PLUS A 2500oF rated lightweight castable with resistance to molten aluminum
GREENSET®-85 P An 80% alumina, phosphate bonded mortar
H-W ES CASTABLE C AL A fireclay, aluminum resistant, coarse aggregate castable
HPV®-ESX CASTABLE A fused silica castable designed for thermal shock resistance
KALA® A 50% alumina brick
KALA® HPC CHECKERS A 50% alumina brick
KALAKAST AR® ADTECH® A 60% alumina castable designed for alkali resistance English
KAST-O-LITE® 22 G PLUS A 2200°F rated lightweight gunning mix
KAST-O-LITE® 22 PLUS A 2200°F rated lightweight castable
KAST-O-LITE® 30 LI PLUS a 3000°F, low iron, insulating castable
PLASTECH® 85P STD An 85% alumina, phosphate bonded plastic refractory
UFALA® A 60% alumina brick shape
UFALA® A 60% alumina brick shape
ULTRA-EXPRESS® 70 AL A 70% alumina, free-flowing, ultra-low cement dense castable
ULTRA-GREEN® 45 A 45% alumina, low cement castable
VERSA-TECH 55 AR HS PLUS A low cement, alkali resistant castable
VERSA-TECH MW 55 AR PLUS A low cement, lower density, alkali resistant castable English
VERSAFLOW® 57A PLUS An andalusite containing, low-cement castable
VERSAFLOW® 65/AL C ADTECH® A 65% alumina, low-cement castable
VERSAFLOW® 70 C PLUS A 70% alumina, coarse aggregate, low-cement castable English
VERSAFLOW® 70AL SC PLUS A 70% alumina, low-cement castable with silicon carbide and molten aluminum metal resistance English
VERSAFLOW® 80 C PLUS An 80% alumina, coarse aggregate, low-cement castable

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New Markets Tax Credit Funds to HWI

UB Community Development, LLC (UBCD), a community development partner of United Bank, recently today the closing of nearly $8 million of New Markets Tax Credit (NMTC) allocation...

They Work with Intensity Too.

HWI is associated with a preferred network of independent contractor/installers who, like us, work intensely to provide high-quality refractory construction and maintenance services.

Fulton, MO Career Fair Event

HWI will host a Career Fair on Wednesday, July 27, 2022, at our Fulton Plant

Navigate the Changing Definition of Success

Join us at Downstream USA 2022!