Assemble your own glass block windows at home. Eliminate the need to use mortar, no masonry experience required. This method requires less materials then the standard mortar installation. Quicker and easier than ever before.


Installs horizontally between each course of Design Line – Pegasus (metric) glass blocks to create smaller, even joints when using a silicone application. Create an “all glass” look and allow more light come through.


Not for use in constructing curved glass block walls.