Alccofast (VT) – Tile Adhesive for Vitrified Tiles
Polymer-Modified Tile Adhesive for Vitrified Tiles
Alccofast (VT) is a polymer-modified cement-based tile adhesive for vitrified tiles, specially formulated for fixing vitrified tiles and other compatible tile types on suitable substrates. Its formulation is designed to provide reliable bonding for low-porosity tiles while supporting efficient thin-bed tile installation.
As part of the Alccofast tile adhesives range, Alccofast VT provides an application-focused solution for vitrified tile installations where consistent adhesion, controlled application and durable performance are required. It is suitable for specified interior and exterior wall and floor applications.
Key Features
- Designed for vitrified tiles: Specially formulated for suitable vitrified tile applications, including tiles with apparent porosity below 3%.
- Polymer-modified formulation: Provides enhanced bonding characteristics for compatible low-porosity tile surfaces.
- Reliable adhesion: Designed to provide strong bonding between compatible vitrified tiles and recommended substrates.
- Thin-bed application: Supports controlled adhesive application for efficient tile installation.
- Slip-resistant: Provides controlled tile positioning during installation, with slip specified at ≤ 0.5 mm.
- Interior & exterior applications: Suitable for specified internal and external wall and floor applications.
- Multiple tile applications: Can be used for compatible vitrified, ceramic, glass mosaic, natural stone, clay and porcelain tiles.
- Efficient application: Pre-formulated dry-mix material helps simplify preparation and application.
- Durable performance: Designed to maintain suitable bonding performance under specified application conditions.
Technical Classification
IS 15477:2019
Type 2
EN 12004-1:2017
C2T
Technical Performance
Tensile Adhesion Strength – Dry
≥ 1.00 N/mm²
Tensile Adhesion Strength – Wet
≥ 1.00 N/mm²
Shear Adhesion Strength – Dry
≥ 1.25 N/mm²
Shear Adhesion Strength – Heat Ageing
≥ 1.00 N/mm²
Shear Adhesion Strength – Wet
≥ 1.00 N/mm²
Open Time
≥ 20 minutes
Adjustment Time
≥ 20 minutes
Slip
≤ 0.5 mm
Recommended Bed Thicknes
3 mm
Approx. Coverage
2.5–3 sq. ft./kg
Coverage
Alccofast VT provides an approximate coverage of 2.5–3 sq. ft./kg at a 3 mm bed thickness.
Actual coverage may vary depending on:
- Tile dimensions
- Tile back profile
- Substrate evenness
- Trowel size
- Adhesive thickness
- Application technique
- Substrate condition
For large projects, actual site consumption should be evaluated before final quantity estimation.
Recommended Tile Size
Alccofast VT is suitable for compatible tile sizes, including applications up to 600 × 600 mm, subject to the product’s application requirements and installation conditions.
For larger or specialised tile formats, adhesive selection should be based on the tile dimensions, weight, substrate and required deformation performance.
Recommended Substrates
Alccofast VT can be applied on suitable:
-
Cement plaster -
Properly prepared cement-plastered surfaces suitable for tile installation. -
Cement concrete -
Compatible concrete substrates that are sound, clean and properly prepared. -
Cement screed -
Suitable cement screed surfaces prepared according to the application requirements.
The substrate should be stable, clean and free from dust, loose particles, oil, grease and other contaminants before application.
How to Apply Alccofast VT
Surface Preparation
The substrate should be firm, clean and free from dust, oil, grease, loose material and other contaminants. Any weak or damaged areas should be repaired before tile installation.
Prepare the Adhesive
Mix Alccofast VT with the recommended quantity of clean water according to the product's technical instructions.
Mix to a Uniform Consistency
Mix thoroughly until a homogeneous paste is achieved. Allow the mixture to stand for the recommended period, where specified, and remix before use.
Apply Using a Notched Trowel
Spread the adhesive evenly over the prepared substrate using an appropriate notched trowel to achieve the recommended adhesive-bed thickness.
Fix the Tiles
Place the vitrified or compatible tiles onto the adhesive while it is within the specified open time. Press and adjust the tiles appropriately to achieve proper contact and coverage.
Observe Adjustment Time
Tiles should be adjusted within the specified adjustment period. Avoid disturbing tiles after the recommended adjustment time has elapsed.
Complete the Installation
Allow the adhesive to set according to the product recommendations before proceeding with grouting or other subsequent work.
Why Choose Alccofast VT?
- Reliable Bonding for Low-Porosity Tiles - Vitrified tiles have relatively low water absorption, so choosing an appropriate tile adhesive for vitrified tiles is important. Alccofast VT is formulated specifically for suitable vitrified tile applications.
- Polymer-Modified Performance - Its polymer-modified cement-based formulation is designed to provide reliable bonding characteristics for compatible vitrified and other specified tile applications.
- Suitable for Interior & Exterior Projects - Alccofast VT can be considered for specified interior and exterior wall and floor applications, making it suitable for diverse construction and renovation requirements.
- Thin-Bed Installation - The product supports thin-bed application, helping achieve a controlled adhesive layer and efficient installation when the recommended application method is followed.
- Slip-Resistant Application - With slip specified at ≤ 0.5 mm, the product is designed to help maintain tile positioning during installation.
- Multiple Compatible Tile Types - In addition to vitrified tiles, Alccofast VT can be considered for specified ceramic, glass mosaic, natural stone, clay and porcelain tile applications.
Alccofast VT for Exterior Tiles
When selecting a tile adhesive for exterior tiles, factors such as weather exposure, moisture, temperature changes, tile size, substrate and expected movement should be considered.
Alccofast VT is suitable for specified exterior wall and floor applications where the tile and substrate meet the product’s requirements.
For exterior installation:
- Ensure proper substrate preparation.
- Select a compatible tile.
- Follow the recommended adhesive-bed thickness.
- Maintain appropriate adhesive coverage.
- Follow the specified mixing and application procedure.
- Allow the adhesive to set as recommended before subsequent work.
Alccofast VT for Home Renovation
For home renovation projects involving vitrified tiles, adhesive selection should take into account the existing surface and the new tile characteristics.
Before installation:
- Check the existing substrate condition.
- Remove loose or deteriorated material.
- Clean the surface thoroughly.
- Ensure the substrate is suitable for the intended tile.
- Select the appropriate adhesive according to tile size and application.
- Follow the recommended installation method.
Alccofast VT can be considered for suitable residential renovation applications involving compatible vitrified and other specified tiles.
Note: Always refer to the latest Alccofast VT technical documentation for project-specific mixing, application and curing requirements.
Suitable Tile Applications
Alccofast VT is designed for tile adhesives used with vitrified tiles and is suitable for:
Vitrified Tiles
Vitrified tiles have low apparent porosity, making appropriate adhesive selection important. Alccofast VT is formulated for suitable vitrified tile installations where reliable bonding is required.
Ceramic Tiles
The product can also be used for compatible ceramic tile applications according to the recommended product specifications.
Porcelain Tiles
Alccofast VT is suitable for specified porcelain tile applications where the tile and substrate meet the product requirements.
Glass Mosaic
The product can be considered for compatible glass mosaic applications on recommended substrates.
Natural Stone & Clay Tiles
Alccofast VT can also be used for specified natural stone and clay tile applications as indicated in the product application requirements.
Interior & Exterior Tile Applications
Alccofast VT is designed for specified:
This makes it suitable for projects where a specialised tile adhesive for exterior tiles is required, provided the tile, substrate and site exposure conditions comply with the product’s recommended application.
Exterior installations should receive particular attention to substrate preparation, moisture exposure, temperature variations and tile characteristics.
Frequently Asked Questions
What is Alccofast VT?
Alccofast VT is a polymer-modified cement-based tile adhesive for vitrified tiles, designed for suitable interior and exterior wall and floor applications.
Is Alccofast VT suitable for vitrified tiles?
Yes. Alccofast VT is specifically formulated for suitable vitrified tile applications and is suitable for tiles with apparent porosity below the specified limit.
Can Alccofast VT be used for exterior tiles?
Yes. Alccofast VT is suitable for specified exterior wall and floor applications, provided the tile, substrate and project conditions meet the product requirements.
What other tiles can be used with Alccofast VT?
The product can be used for specified ceramic, vitrified, glass mosaic, natural stone, clay and porcelain tile applications, subject to compatibility and product recommendations.
What is the maximum tile size for Alccofast VT?
The product application information indicates suitability for tile sizes up to 600 × 600 mm, subject to the relevant application requirements.
What is the coverage of Alccofast VT?
The approximate coverage is 2.5–3 sq. ft./kg at a 3 mm bed thickness. Actual consumption varies with tile size, substrate condition, adhesive thickness and application technique.
Is Alccofast VT suitable for home renovation?
Yes, it can be considered for suitable renovation projects involving compatible vitrified and other specified tile applications.
What is the classification of Alccofast VT?
Alccofast VT is classified as Type 2 under IS 15477:2019 and C2T under EN 12004-1:2017.
Choose Alccofast VT for Vitrified Tile Installation
For projects requiring reliable tile adhesives for vitrified tiles, Alccofast VT provides a polymer-modified cement-based solution designed for suitable interior and exterior applications.
Its reliable bonding, thin-bed application, slip-resistant characteristics and suitability for multiple compatible tile types make it a practical solution for vitrified tile installation across suitable residential, commercial, renovation and construction projects.
Looking for a reliable tile adhesive for vitrified tiles? Talk to Alccotech for product and application guidance.




