Mortar Net Releases CompleteFlash Corner Boots and End Dams, and MPE-1 Sealant

Words: Dan Kamys

Mortar Net Releases CompleteFlash Corner Boots and End Dams, and MPE-1 Sealant


Mortar Net Solutions has introduced a new synthetic rubber/polypropylene blend version of its CompleteFlash 14" High Corner Boots and end dams, and a reformulated version of its MPE-1 modified polyether sealant. The current thermoplastic vinyl and thermoplastic polyolefin corner boots and end dams will continue to be available. The reformulated MPE-1 replaces the existing formula.

The new CompleteFlash synthetic rubber/polypropylene (RP) blend material consists of dynamically vulcanized rubber in a polypropylene matrix. It combines excellent elastic properties with the processing ease of thermoplastics, and resists high temperatures up to 2750 F. It has high impact strength and excellent resistance to ultraviolet radiation (UV), chemicals, weathering and abrasion. It is 100% recyclable, so production waste is nearly zero and salvaged material can be made into new products.

The new CompleteFlash 14" High Corner Boots and end dams are 100% compatible with the new TotalFlash EPDM membrane, as well as PVC, TPO and copper membranes, all available from Mortar Net Solutions.   

The reformulated MPE-1 forms an aggressive bond between the new CompleteFlash products and the TotalFlash EPDM membrane, making it easy to create water- and air-tight joints between them. The new MPE-1 formula also bonds to all other TotalFlash membranes except TPO. Butyl sealants are also compatible with the synthetic rubber/polypropylene blend.

The synthetic rubber/polypropylene blend CompleteFlash 14" High Corner Boots and end dams are competitively priced and are the only one-piece, injection-molded boots and dams in the market today made from this material. TotalFlash, MPE-1 and CompleteFlash are available from masonry products distributors throughout the United States and Canada.

Hines Market Square
September 2026

Hines Market Square, now known as Aris Market Square, is a mixed-use, multifamily development located in downtown Houston. The architect on this project, Ziegler Cooper, is known for reshaping the urban landscape. In keeping with their vision, the buildin

Understanding Met-Guard Protection in Work Boots
September 2026

Masonry work demands precision and strength, but it also comes with unavoidable risks. From handling heavy materials like brick and block to operating cutting equipment and working in tight, active environments, tradesmen and tradeswomen regularly expose

Making Old Brickwork Look New Again
September 2026

Brickwork is built to last, but mortar isn’t. Over time, exposure to moisture, freeze-thaw cycles, and everyday wear causes joints to crack, crumble, and even recede. What starts as a cosmetic issue can quickly turn into a structural concern if left unadd

Why Joint Profiles Matter In Masonry Restoration
September 2026

For generations, masonry structures have been defined not only by the brick, block, or stone used in construction, but also by the mortar joints that tie everything together. Whether restoring a historic brick facade, repairing natural stone veneer, or re