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Boiler Mortars, Caulk, & Refractories

Additional Information

Refractories, mortars, and caulks are essential for protecting the high-temperature zones of boilers and furnaces. These materials insulate the combustion chamber, firebox, and boiler walls from extreme heat, abrasion, and chemical attack. By maintaining a stable thermal barrier, they help improve combustion efficiency, reduce heat loss, and extend overall equipment life.

 

Over time, refractory linings can crack, spall, or erode due to thermal cycling and exposure to corrosive by-products. Using quality mortars and caulks to repair gaps, seal joints, and patch damaged areas is critical to preventing hot spots, fuel waste, and potential structural failure. Regular inspection and timely maintenance ensure your boiler operates safely and efficiently year-round.

In-stock orders eligible for small-pack shipments placed before 2:00 PM EST, Monday through Friday, will ship the same day. If ordered after 2:00PM EST, it will ship the following business day.

Items to be returned must be approved by Power Plus International, Inc. DBA Boiler USA, and may be subjected to a restocking fee

Notice: Due to the uncontrollable metal costs, all prices and delivery times are subject to change on a daily basis.

PPI™ and Power Plus International™, and related marks and logos displayed on the Site, are our trademarks and may not be used in any way without our prior express written permission. Nothing contained on the Site shall be construed as granting, by implication, estoppel or otherwise, any license or right to use any of our marks displayed on the Site without our prior express written permission. All other trademarks not owned by us that appear on this Site are the property of their respective owners.

*NOTE: The products described herein are not manufactured by Patterson-Kelley nor is Power Plus International, Inc. DBA Boiler USA in any way associated or affiliated with "PK", Patterson-Kelley, or Harsco Corporation.

Contact Us Directly:
Mailing Address:
  • Power Plus International, Inc. DBA Boiler USA
  • 143 McDonough Parkway
  • McDonough, GA 30253
Contact Us Directly:
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© 2026 Power Plus International, Inc. d/b/a Boiler USA, All Rights Reserved.
Mailing Address:
  • Power Plus International, Inc. DBA Boiler USA
  • 143 McDonough Parkway
  • McDonough, GA 30253
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