BLOCK JOINTING MORTAR
Welcome to the era of precision masonry with Block Jointing Mortar (BJM), the essential dry mix solution engineered for superior performance and speed in modern construction. BJM is a high-strength, thin-bed polymer-modified mortar specifically formulated to replace thick conventional sand-cement mortar for modern construction blocks like AAC, fly ash, and concrete blocks. It is a pre-mixed material that only requires the addition of water on site for hassle-free, consistent application. Designed for ease and efficiency, BJM allows for minimal joint thickness (3-5mm), significantly reducing material consumption and completely eliminating the messy on-site mixing and sieving process. Its excellent tensile bond strength ensures the structural integrity and long-term durability of the entire wall. By accelerating construction speed, reducing labor costs, and ensuring superior consistency across all joints, BJM helps contractors deliver high-quality projects on time and under budget. Bond Strong. Build Fast. Finish Smooth
Seamless Bonds. Superior Strength.
Our MTB Block Jointing Mortar ensures high bonding strength and reduces material consumption compared to conventional cement mortar.
Why Use MTB Block Jointing Mortar for Masonry with MTB AAC Blocks
- Stronger Bonding & Structural Stability
- The jointing mortar formulated for AAC blocks provides a superior bond between individual blocks, which enhances the overall integrity of the wall. Standard cement-sand mortar may not adhere as uniformly to MTB AAC blocks, which can lead to weaker joints and potential issues later. Because AAC blocks are designed for thin joints and precision installation, a tailored mortar ensures the blocks behave as intended.
- Crack-free and long-lasting finish
- Thin-Bed Application – Material & Labour Savings
Unlike conventional masonry where mortar joints may be 10–12 mm or more, the jointing mortar for AAC blocks is designed to be applied in very thin layers (typically 2–5 mm) without compromising strength.
This means:
- Less mortar material is needed (lower cost and less waste)
- Faster block laying since less time is taken for filling thick joints
- A more precise, uniform wall surface with fewer irregularities
- Faster Construction & Cleaner Site
Because the MTB Block Jointing mortar is factory-formulated (pre-mixed) and requires only the addition of water, mixing is simpler and quicker. Also, fewer materials and thinner joints mean less mess and less site waste. The improved bonding and thin application often reduce/shorten curing time (in many cases minimal water curing is required).All of this helps accelerate your construction schedule and reduce labour costs.
- Better Thermal & Acoustic Performance
Thin joints mean fewer “cold bridges” and less mortar bulk that can compromise insulation performance. Some of the jointing mortars for AAC blocks have better thermal resistance than conventional mortar. Combined with the naturally good insulation of AAC blocks, this helps improve indoor comfort, reduce heating/cooling loads and enhance acoustic performance (fewer voids or gaps in the wall).
- More Durable, Fewer Cracks & Defects
Because the MTB Block Jointing Mortar is matched to the AAC system (including additives like polymers, shrinkage control, water-retention), the likelihood of shrinkage cracks or weak joints is reduced. Also, the uniform bond and more precise joint mean fewer finishing issues (plaster cracks, uneven surfaces) and longer term performance with less maintenance.
BLOCK JOINING MOrTAR are IDEAL FOR
APPLYING
APPLYING
STICKING
STICKING
RENOVATION
RENOVATION
Build the Future, Responsibly
Choosing MTB ready plaster means choosing innovation, strength, and sustainability.
At MTB Infratech, we’re committed to helping you build smarter — for people and a sustainable planet.
At MTB Infra Tech Pvt Ltd, we don’t just supply building materials — we build the technology that produces them.