ProVantage glass block installation system uses spacers to align
and hold the block in place and silicone to bond the spacer to the
blocks. The consistent, even-spaced joints are then finished
with a special tile grout resulting in a clean, smooth, professional
mortar installation system uses joint spacers and glass block mortar
to produce clean, consistent 1/4" joints and a traditional
grid look. Use in conjunction with reinforcement wire and panel
anchors to secure your application.