Harikrishna Block Joint Adhesive is a High-strength adhesive for quick and firm lying of AAC blocks with thin joints. Made of cement, graded sand, and blended with polymers, it provides high strength and water retention properties even when in thickness of 3-4 mm layer. 98% of AAC Fly Ash Blocks worldwide are joined using thin-bed mortar. It improved compressive and tensile strength. It can be used for both interior and exterior purposes. HK Block Adhesive meets ASTM-C1660-09 quality standards. It is used for fixing of all kind Of AAC Blocks, Concrete Blocks, And Other Absorbent Bricks.


  • Excellent bonding
  • Good workability easy to use
  • Consistent work quality
  • Plaster making after 24 hr of application
  • No curing required
  • Save time
  • Cost effective
  • Low crack resistance
  • Lesser shrinkage


Take the 10 to 11 ltr Clean water (for 40 kg bag) in a bucket, add slowly HK Block Joint Adhesive and stir continuously for 5-10 minutes by using an electric mixer or by hand to obtain homogeneous lumps free mix. Smaller quantity can be also mi by manually and used in 3mm to 4 mm thin layer.


Appearance Grey Powder
Water Required 35%
Pot Life 1.5 - 2 Hrs
Tensile Adhesive Strength 0.41 mpa (As Per Astm - C1660)
Coverage 170 - 180 Sq.Ft (For 4" Thick Blocks)
Adhesive Thickness 2 To 4 mm


Factory packed bags of HK Block Joint Adhesive carriers a shelf life of 6 months, if stored in cool & dry place. However as temperature, humidity, water addition & other parameters vary from site to site, the information should be treated as a general guideline.

Health and safety

Contains Portland cement and silica sand. Freshly mixed cement is highly alkaline and may cause skin injury. Avoid creating and inhaling dust. Provide ventilation and respiratory protection. Wear skin and eye protection. Dust mask recommended. Please refer to (MSDS) material safety data sheet before using product.