Alccofast (S) – Cement-Slurry-Based Tile Adhesive for Floor Tiles
Cement-Slurry-Based Tile Adhesive for Fixing Floor Tiles on Semi-Dry Bedding Mortar
Alccofast (S) is a polymer-modified, cement-slurry-based tile adhesive for floor tiles fixing on semi-dry bedding mortar. It is specially designed for tile installation using the traditional semi-dry bedding mortar method, providing a controlled bonding solution between compatible floor tiles and the bedding layer.
Unlike conventional site-prepared slurry, Alccofast S is a professionally formulated tile chemical designed to support consistent bonding and efficient floor tile installation. It can be considered for suitable ceramic, vitrified, natural stone and terracotta floor tile applications where the semi-dry bedding mortar installation method is preferred.
Key Features
- Cement-slurry-based tile adhesive: Specifically formulated for fixing compatible floor tiles over semi-dry bedding mortar.
- Polymer-modified formulation: Designed to provide enhanced bonding performance compared with conventional cement slurry.
- For semi-dry bedding mortar: Developed specifically for tile fixing applications where a semi-dry bedding mortar is used as the base layer.
- Superior bonding: Helps establish reliable adhesion between the floor tile and compatible bedding mortar.
- Suitable for multiple floor tiles: Can be used for compatible ceramic, vitrified, natural stone and terracotta tiles.
- Traditional installation compatibility: Suitable for projects where the traditional semi-dry bedding mortar method is preferred.
- Efficient application: Pre-formulated material helps simplify preparation compared with manually proportioned slurry.
- Durable performance: Designed to provide reliable bonding for suitable floor tile installations.
- Controlled formulation: Manufactured for consistent material characteristics when properly stored, mixed and applied.
- Suitable for professional applications: Designed to support flooring contractors, builders and tile installation professionals.
Technical Classification
Tensile Adhesion Strength on 1:4 Bedding Mortar
≥ 0.30 N/mm²
Tensile Adhesion Strength on 1:6 Bedding Mortar
≥ 0.20 N/mm²
Open Time
> 20 minutes
Adjustment Time
> 10 minutes
Coverage
The product should be consumed according to the recommended application method and required slurry thickness.
Actual consumption can vary depending on:
- Bedding mortar condition
- Tile dimensions
- Tile back profile
- Slurry thickness
- Surface level
- Application technique
- Site conditions
For project-level quantity estimation, actual site conditions should be considered.
Recommended Installation System
Alccofast S is designed as part of a semi-dry bedding mortar tile-fixing system.
The basic installation sequence involves:
Prepared Substrate → Semi-Dry Bedding Mortar → Alccofast S Slurry Layer → Floor Tile
The bedding mortar and substrate should be properly prepared and stable before application.
How to Apply Alccofast S
Prepare the Surface
Ensure the base is stable, clean and suitable for receiving the semi-dry bedding mortar. Remove loose particles, dust, oil, grease and other contaminants.
Prepare the Semi-Dry Bedding Morta
Prepare the bedding mortar according to the project's specified mix design and ensure that it provides a suitable, level and stable base for tile installation.
Prepare Alccofast S
Mix Alccofast S according to the recommended product instructions using clean water to obtain the required slurry consistency.
Apply the Slurry
Apply the prepared Alccofast S slurry uniformly over the appropriate area of the semi-dry bedding mortar as recommended.
Fix the Floor Tile
Place the compatible ceramic, vitrified, natural stone or terracotta tile over the freshly applied slurry layer.
Position the Tile
Adjust and align the tile appropriately to achieve the required level, line and finished surface.
Complete the Installation
Allow the tile installation to set according to the recommended procedure before proceeding with subsequent grouting or finishing work.
Why Choose Alccofast S?
- Designed for Traditional Floor Tile Fixing - Alccofast S is developed specifically for floor tile installation using the semi-dry bedding mortar method, making it suitable for projects where this installation technique is preferred.
- Polymer-Modified Performance - The polymer-modified formulation is designed to provide improved bonding characteristics for suitable floor tile applications.
- Superior Bonding - Alccofast S helps provide reliable bonding between compatible floor tiles and the semi-dry bedding mortar layer when properly applied.
- Multiple Floor Tile Applications - The product can be considered for compatible ceramic, vitrified, natural stone and terracotta floor tiles, providing flexibility across different flooring projects.
- Controlled Material Preparation - As a pre-formulated product, Alccofast S helps reduce the need to manually proportion individual ingredients when preparing conventional cement slurry at the construction site.
- Suitable for Flooring Projects - It can be considered for suitable residential, commercial, renovation and other flooring applications where semi-dry bedding mortar is used.
Alccofast S for Floor Tile Installation
Selecting the right tile adhesive for floor tiles depends on the tile type, installation method, substrate and project requirements.
Alccofast S is specifically designed for applications where floor tiles are fixed over semi-dry bedding mortar. Its polymer-modified slurry-based formulation provides a controlled alternative to manually prepared cement slurry.
It can be considered for compatible:
- Ceramic floor tiles
- Vitrified floor tiles
- Natural stone
- Terracotta tiles
Alccofast S for Renovation & Flooring Projects
For renovation and refurbishment projects, the existing substrate and floor level should be carefully assessed before selecting the installation system.
Alccofast S can be considered where the project requires a semi-dry bedding mortar-based floor tile fixing method and the existing substrate is suitable for the proposed system.
Before installation:
- Inspect the existing base.
- Remove loose or damaged material.
- Ensure adequate surface stability.
- Check floor levels.
- Prepare the bedding mortar correctly.
- Use the recommended Alccofast S application method.
- Allow appropriate setting before subsequent work.
Semi-Dry Bedding Mortar Application
Alccofast S is different from conventional thin-bed tile adhesives because it is specifically designed for floor tile fixing on semi-dry bedding mortar.
In this installation method, the bedding mortar provides the required base layer, while Alccofast S is used as the cement-slurry-based bonding material between the bedding mortar and compatible floor tile.
This makes the product suitable for projects where contractors prefer a traditional bedding-mortar installation approach while requiring a professionally formulated bonding solution.
Important: The exact mixing ratio, application procedure and setting requirements should always be followed according to the latest Alccofast S technical documentation.
Applications
Alccofast S can be considered for:
Ceramic floor tiles
Vitrified floor tiles
Natural stone flooring
Terracotta flooring
Residential flooring
Commercial flooring
Renovation and refurbishment
Traditional bedding mortar tile installation
Semi-dry bedding mortar applications
Suitable interior floor projects
Recommended Application Areas
Alccofast S can be considered for suitable:
Frequently Asked Questions
What is Alccofast S?
Alccofast S is a polymer-modified, cement-slurry-based tile adhesive for floor tiles fixing on semi-dry bedding mortar.
What is Alccofast S used for?
It is designed for fixing compatible floor tiles over semi-dry bedding mortar using the recommended slurry-based tile installation method.
Which tiles can be fixed using Alccofast S?
Alccofast S can be considered for compatible ceramic, vitrified, natural stone and terracotta floor tiles.
What is the main difference between Alccofast S and a thin-bed tile adhesive?
Alccofast S is specifically designed for semi-dry bedding mortar applications, whereas thin-bed adhesives are applied directly to suitable substrates using a controlled adhesive bed.
Can Alccofast S be used for vitrified floor tiles?
Yes, it can be considered for compatible vitrified floor tile applications when used with the recommended semi-dry bedding mortar system.
Can Alccofast S be used for natural stone flooring?
Yes, suitable natural stone floor applications can be considered, subject to compatibility between the stone, bedding mortar and installation conditions.
What is the tensile adhesion strength of Alccofast S?
The supplied product information specifies tensile adhesion strength of ≥0.30 N/mm² on 1:4 bedding mortar and ≥0.20 N/mm² on 1:6 bedding mortar.
What is the open time of Alccofast S?
The specified open time is more than 20 minutes, while the adjustment time is more than 10 minutes.
Choose Alccofast S for Semi-Dry Bedding Mortar Tile Fixing
For flooring projects that require a cement-slurry-based tile adhesive for floor tiles fixing on semi-dry bedding mortar, Alccofast S provides a professionally formulated, polymer-modified solution.
It is designed to support reliable floor tile bonding while retaining compatibility with the traditional semi-dry bedding mortar installation method.
Looking for a reliable slurry-based tile adhesive for floor tiles? Talk to Alccotech for product and application guidance.

