Repair Glass Block Window Mortar

This is the area where the blocks come together or even join to your foundation.

Repair glass block window mortar.

Sometimes an individual glass block cracks gets scratched or breaks. Glass block windows are composed of a number of single modular glass blocks set with mortar in the opening of a wood or masonry wall. Glass block mortar can also be used in laying brick block and tile where white mortar is desired. Stains and mold are common on the porous mortar that holds glass blocks in place.

If just one glass block in a window grouping is damaged it affects the look of the entire window. It has started to leak when the rain comes in from the side. Here is a list of what you will need to complete the project. Cover both sides of the glass block with duct tape leaving the grout line uncovered.

This type of glass block window is held together with plastic spacers and a silicone based sealant. Any suggestions on how to repair the mortar and make it waterproof again. Please see our website www glassblocksdirect co uk where you can purchase glass blocks and fixing materials too. Glass block mortar consists of a uniformly blended mixture of white sand cement lime and chemical additives.

Take a chisel and a rubber mallet to clear any broken or cracked mortar from the joints to prepare it for the needed repairs. Periodically applying a sealant to the mortar fills voids in the material to combat the mortar s porous nature. Over time the staining becomes unsightly and ruins the look of the glass block wall or window. Glass block installation video.

Glass block mortar is a specially formulated product that is designed for glass block applications requiring white mortar joints. I have a 2 story glass block window. Glass block mortar to achieve waterproof mortar joints that serve to complement your glass block wall with a decorative look suitable for both interior and exterior use. Mortar less glass block window.

Use this quikrete 25 lb.