In addition to the excellent adhesion characteristics of our one-component RTV’s you will find that they also have many other advantages over two-component systems. Standard one-component RTV’s display high elongation and high tear strength to absorb stresses caused by substrates with dissimilar coefficients of thermal expansion, or by substrates with a wide range of mechanical motion. Furthermore, one-component RTV’s can be formulated to provide elastomeric properties at temperatures up to 575°F (300°C) for sustained periods. And, since no mixing is required, one-component RTV’s are very easy to apply and simple to use. An important part of one-component RTV chemistry is the cross-linking mechanism. Each cross-linker used in formulating RTV’s has unique advantages and disadvantages. The information below illustrates some of the features which would best help determine the RTV best suited for your particular application.

We save the prime time for you!

You'll find our polyurethane sealants exhibit excellent adhesion characteristics, eliminating the need for priming prior to the application to many materials including, prepainted metals, plywood, glass, aluminum, steel, plus many plastics and composites. In addition to primerless adhesion,
May National's polyurethanes feature high bond and strength capabilities and are available with a variety of cure times. They can also be formulated in custom-matching colors. All of our polyurethanes are easily painted and can be sanded after they have cured.