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Custom Mortar Repair and Restoration Products
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GB15 is a natural repair mortar specifically formulated for the patching and restoration of granite and bluestone in heavy traffic areas, window sills, steps and surface areas. GB15 can be used to repair small chips and spalls. GB15 is a mineral-based, single component product that is mixed with water. It is formulated using only natural binders; no synthetic polymers or additives are used. GB15 has excellent freeze-thaw and salt resistance. It is vapor permeable. Weight: 48 lbs
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Specifications for Granite and Bluestone
Catalogs for Granite and Bluestone
Videos for Granite and Bluestone
US Heritage Group, Inc. video of Repointing historic masonry the right way - Part 1 - Clearing Mortar Joints
2022-09-30T00:00:00+00:00Z
US Heritage Group, Inc. video of Repointing historic masonry the right way - Part 2 - Pointing Mortar Joints
2022-09-30T00:00:00+00:00Z
US Heritage Group, Inc. video of Repointing historic masonry the right way - Part 3 – Curing Mortar Joints
2022-09-30T00:00:00+00:00Z
US Heritage Group, Inc. video of US Heritage Group Training at Gallier Hall
2022-09-30T00:00:00+00:00Z
US Heritage Group, Inc. video of US Heritage Group Workshop at Naper Settlement
2022-09-30T00:00:00+00:00Z
US Heritage Group, Inc. video of USH Lime Putty Mortar Installer Certification Training (1 Day)
2022-09-30T00:00:00+00:00Z