
Kaspo Block Fix Bond AG 401
Kaspo Block Fix Bond AG 401 is a factory-prepared blend of carefully selected raw materials, Portland cement, and graded aggregates. This ready-to-mix, self-curing cementitious mortar is engineered for mounting and bonding aerated autoclaved concrete (AAC) blocks, hollow blocks, and bricks delivering mechanical bond and excellent adhesion between blocks at thicknesses up to 12mm, meeting national and international standards.
Suitable Substrates
Concrete blocks, cement mortar blocks/bricks, concrete hollow blocks, aerated lightweight blocks, cellular concrete blocks, fly ash bricks.
Features
Single-component, ready-to-use mix bag
Provides excellent adhesion between block-to-block and other porous cementitious surfaces
Contains special additives for enhanced adhesion and waterproofing
Reduces the time required for mounting blocks
Extended pot life allows larger batch quantities to be mixed at once
Self-curing no post-curing work required after block installation
Suitable for both interior and exterior surfaces

Directions of Use
01
Pre-wet the blocks before fixing.
02
Ensure the mounting surface is clean of laitance and loose material, and free from voids, holes, and cracks.
03
Gradually add 3 parts of powder to 1 part water (by volume) and mix to a smooth, workable paste. Do not extend pot life by adding extra water.
04
Allow the mixed paste to stand 3–5 minutes to mature before use.
05
Apply Block Fix Bond uniformly on both sides of the block joint, checking line and level, and press the block firmly into place to ensure good bonding.
06
Clean off any excess material immediately.
Technical Specifications
Property | Value |
|---|---|
Color & Appearance | Grey |
Bulk Density | 1460 kg/m³ |
Pot Life | > 180 minutes |
Open Time | > 60 minutes |
Compressive Strength (28 days) | 12.5 N/mm² |
Tensile Adhesion (28 Days) | 2.75 N/mm² |
Shear Adhesion (28 Days) | 2.75 N/mm² |
Coverage | ~180 sq. ft. per 30kg bag at 3mm bed thickness |
Shelf Life | 12 months from date of manufacture (sealed condition) |