Buildmaxx - Block Adhesive

Buildmaxx Block Adhesive is a semi premix high quality Adhesive for jointing and bonding of AAC blocks, concrete blocks, hollow blocks, clay bricks and fly ash bricks. Buildmaxx Adhesive is semi premix consists of cement, graded sand and specialised polymers which combine to give superior strength, water retention and stability. It replaces the conventional method and material of sand cement mortar which requires a 12-18 mm thickness with a revolutionary 3-5 mm joint thickness. it only requires addition of water before application to prepare the product for use, reducing the hassle of measuring and maintaining various individual elements to create a conventional mortar. Standard specification code followed is ASTM C1660-09.

Technical & Physical Parameters

  • Physical Nature :

    Free Flowing Powder and Grey in Colour

  • Water Demand for ease in application :

    25-30 %

  • Ease in spread on surface :

    Excellent (In comparison to conventional mortar due to the consistency in texture and smoothness in application.)

  • Touch Dry :

    40 -60 minutes on AAC Blocks

  • Pot life :

    Approx. 30 Minutes

  • Compressive strength @7 days :

    5 – 6 N/mm2

  • Compressive strength @28 days :

    9 – 10 N/mm2

  • Pull off strength :

    0.62 N/mm2

  • Bulk Density :

    1400 - 1750 kg/m3 (In standard testing conditions - Without Vibration)


Block Size (mm) Unit Coverage Area
100 X 240 X 625 Sqft 150 – 165
125 X 240 X 625 Sqft 135- 150
150 X 240 X 625 Sqft 110 – 125
#The Values obtained are from our laboratory testing conditions. Tests conducted on site conditions may show slight variation due to methods of testing/application

Ingredients : Graded Sand, Pozzolanic material, Binder, Performance additives.

Packaging : 40 Kg PP Laminated Bags.

Storage : Keep in dry place free from moisture and water. Do not leave the bag/bags open.

Shelf Life : Six months from the date of manufacture in the originally sealed packaging and with recommended storage conditions.

Features and Benefits

Thin Joints
Thin Joints

Reducing the overall jointing material by around 75%, Buildmaxx Adhesive joints are also known for their high adhesive strength, enhancing the quality of masonry and minimizing shrinkage. Thin joints will also lead to accuracy in workmanship and neatness in the masonry work.

Water Saver
Water Saver

Water curing is not required after the application as it contains self curing properties.

Minimum Process Time
Minimum Process Time

After application, the wall will be ready for plaster within a short time of just 24 hours.

Less Quantity
Less Quantity

Since the quantity required is 75% less than conventional mortar, the storage requirements are comparatively minimal, saving site storage space and handling.

Negligible Seepage
Negligible Seepage

Due to the texture, chemical bond and properties of adhesive, seepage water penetration through joints is negligible.

Prevention Of Efflorescence
Prevention Of Efflorescence

Since the raw materials are well processed and treated in a standardised condition and method, the chances of efflorescence are minimum.

Time Saving
Time Saving

No site mixing required for various raw materials and overall less material required in the application process, which leads to less handling and quicker application, eliminating the lengthy process of wall construction.


It consists of materials that are environment friendly.

No Raking
No Raking

Raking of the joints or “U” grooving of the joints are not required before plastering, saving time and manpower.


The semi-premix solutions which only require the addition of water to prepare for application, reducing the hassle of mixing various raw materials and further saving a lot of time and manpower.

Easy Application
Easy Application

Easy to mix, blend and apply due to the smooth texture of the adhesive, the semi premix ensures higher flow-ability and water retention properties.

Preparation and Application

1. Mixing

In a clean bucket, mix it in 25-30 % of water.

Mixing By Mixer Or Tool
2. Mixing By Mixer Or Tool

Mix first for 5-10 minutes by hand or electrical mixer to mix homogeneously.

Reaction Time
3. Reaction Time

Allow mortar to stand for 5 minutes.

Mortar Remixing
4. Mortar Remixing

Mix again for 2-3 minutes. Now it is ready to use.

Clean Surface
5. Clean Surface

Before applications clean the surface of blocks using suitable tools like brush so that any foreign material is not held on the blocks.

Wet Surface
6. Wet Surface

Wet the surface of blocks before applying adhesive.

Adhesive Spread
7. Adhesive Spread

It should be spread on all sides of block in such a way to maintain the bond thickness 3 - 5 mm.

8. Alignment

Use Spirit Level and fibre hammer to remove any air gaps in between blocks for proper jointing and alignment.

9. DND

Do not disturb the wall after application of mortar for at least 24 hours.

Setting Time
10. Setting Time

The setting time is affected by climatic conditions, allow stand-alone time accordingly.