AAC block jointing mortar is a premixed, factory-made material that's used to create a strong and durable bond between autoclaved aerated concrete (AAC) blocks.
Surface preparation"
All surfaces should be structurally sound, clean and free of all dirt, oil, grease, concrete sealers or curing compounds.
Rough or uneven concrete surfaces should be made smooth with Asian Paints SmartCare Multi Purpose Polymer modified mortar to provide a levelled finish.
Installation may be made on a damp surface. All slabs must be plumb and true to within ¼" (6mm) in 10 ft (3m).