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On Demand

Efficiently Placing Vertical, Hand-Applied Mortar

Product Demonstrations
Richard First
6 Minutes
Audio and Video
Access for 6 month(s) after purchase.


Vertical/overhead repair mortars are traditionally hand- or spray-applied. Small repairs are suitable for hand application; whereas, low pressure spray equipment is useful for large projects. Mortar guns are commonly used for tuckpointing applications using site-mixed, masonry mortar. As most vertical/overhead concrete repair materials exhibit a stiff consistency, such mortar guns have not been widely implemented in concrete repair applications. With its unique, thixotropic rheology, MasterEmaco N 425 is well suited for use with such equipment. This demonstration presents the ease of application of MasterEmaco N 425 using a Quikpoint 3000 mortar gun.


  1. Demonstrate the proper equipment required. 
  2. Illustrate how the method can be used. 
  3. Identify the types of mortars used in this application. 
  4. Compare the timing of this method vs traditional hand-applied applications. 


Richard First's Profile

Richard First Related Seminars and Products

Product Manager

Sika Corporation

Rick First has been with Master Builders for 29 years. Rick spent 13 years in R&D in the areas of understanding cement-admixture interactions, developing admixtures for shotcrete refractory materials and jointly discovering patented chemistry for the soil stabilization mechanism used on the “Big Dig” project in Boston. During his later years in product development, he developed improved formulations for grouts, concrete repair and industrial flooring products. Rick is now the Engineering Services Manager in the Technical Service Group and is a subject matter expert in concrete, concrete repair, grouting and flooring. Rick graduated from Case Western Reserve University with a M.S. in Materials Science & Engineering and The Ohio State University with a B.S. in Ceramic Engineering. 

Company Info

Master Builders Solutions is the global brand of advanced chemical solutions for construction. Our comprehensive construction chemicals portfolio includes concrete admixtures, waterproofing solutions, concrete repair and protection solutions, performance grouts and performance flooring solutions.