FİXA FLEX GRANITE TILE ADHESIVE | C2TE CLASS HIGHLY FLEXIBLE, HIGH-ADHESION PERFORMANCE ADHESIVE

FİXA® FLEX Granite Tile Adhesive – Professional Application Guide

Product Description

FİXA® FLEX Granite Tile Adhesive is a polymer-modified, cement-based adhesive developed for projects requiring high flexibility, strong adhesion, and extended working time in large-format ceramic tile and natural stone applications. Its non-slip formula provides stable application on both vertical and horizontal surfaces.

Key Features

  • Cement-based, single-component
  • Polymer-modified, flexible structure
  • C2TE class high adhesion strength
  • Non-slip performance for safe vertical applications
  • Extended working time (~2.5 hours)
  • Resistant to temperature fluctuations (-30°C / +80°C)
  • Optimized for granite, marble, and large-format coverings

Areas of Use

  • Indoor and outdoor applications
  • Horizontal and vertical surfaces
  • Granite, porcelain granite, marble, clinker, and natural stone coverings
  • High-traffic areas such as shopping malls, hospitals, schools, and business centers
  • Underfloor heating systems
  • New tile installations over existing coverings

Advantages

  • Flexible structure: Accommodates substrate movement and reduces the risk of cracking.
  • Extended working time: Mixed mortar remains usable for approximately 2.5 hours.
  • Strong adhesion: C2-class bonding performance ensures secure installation of heavy and large-format coverings.
  • Non-slip: Prevents tiles from slipping on vertical surfaces.
  • Water and frost resistant: Suitable for outdoor applications.
  • Temperature resistant: Service temperature range from -30°C to +80°C.

Surface Preparation

  • The substrate must be fully cured.
  • Remove oil, dust, detergent residues, silicone, paint, and any substances that may impair adhesion.
  • Repair damaged surfaces with FİXA repair mortar at least 24 hours before application.
  • Cement-based surfaces should be lightly dampened and kept moist.
  • Suitable primers should be used on highly absorbent surfaces.
  • FİXA waterproofing products should be applied in wet areas.

Mortar Preparation

  • 25 kg powder product → 5.5–6.5 L clean water
  • Mix with a low-speed mixer until a lump-free consistency is achieved.
  • Allow the mixture to rest for 5–10 minutes, then remix.
  • Pot life: approximately 2.5 hours.
  • Excess water will reduce product performance.

Application Instructions

  • Apply a thin contact layer to the substrate first.
  • Comb the adhesive using an appropriately sized notched trowel.
  • More than 80% of the back surface of the tile should be in contact with the adhesive.
  • For large and heavy coverings, the double-bonding (buttering-floating) method is recommended.
  • Fix tiles firmly using a rubber mallet.
  • Leave appropriate grout joints between coverings.

Consumption

Average: 4–6 kg/m², depending on the application method.

Important Notes

  • Do not apply at temperatures below +5°C or above +35°C.
  • Do not add excessive water to the mortar.
  • Do not apply in areas exposed to freezing conditions.
  • Do not add water or powder to mortar that has exceeded its pot life.

Technical Specifications

PropertyValue
AppearanceGray fine powder
Powder Density~1.45 kg/L
Water Mixing Ratio5.5–6.5 L / 25 kg
Resting Time5–10 min
Pot Life~2.5 hours
Extended Open Time≥ 0.5 N/mm² (30 min)
Adhesion Strength (28 days)≥ 1 N/mm²
Slip≤ 0.5 mm
Application Temperature+5°C / +35°C
Walkability Time24 hours
Service Temperature-30°C / +80°C

Packaging and Shelf Life

  • 25 kg kraft bag
  • Can be stored for 12 months in unopened packaging in a dry environment.

Frequently Asked Questions (FAQ)

Which coverings can it be used with?
Granite, marble, natural stone, large-format ceramic tiles, and clinker coverings.

Does the product slip on vertical surfaces?
No. It has reduced-slip properties.

Can it be used with underfloor heating systems?
Yes. It is resistant to temperature fluctuations.

What is the pot life?
Approximately 2.5 hours.

Conclusion

FİXA® FLEX provides maximum adhesion, extended working time, and flexibility, making it a reliable solution for professional ceramic tile and natural stone installations, especially in large and heavy covering applications.