Tile Adhesives

Cement Based Adhesive

Monneli Neofil F15

Tile Adhesive on Gypsum Board Substrate

NEOFIL F15 is used for fixing most types of ceramic tile on gypsum boards.
It suitable for use as an:
Joint grout for interior and exterior floor
Wall bonding of ceramic tiles
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Technical Information
Product Description

NEOFIL F15 is a white color high quality polymer modified waterproof powder adhesive formulated in a way to obtain excellent characteristics of workability and adhesion. It is specially formulated to fix ceramic tiles on gypsum boards and all types of gypsum substrates. It is water resistant and does not contain fiber, asbestos & other harmful components.

  • Enhanced bond and tensile strengths
  • Flexible
  • Water resistant
  • Good Workability
  • Eco-friendly
  • Formulated to suit Middle East conditions
Compiliance Standard
  • European EN 12004 C2T
  • ANSI A 118.4 - 1999
  • ISO 13007-C2T
  • EN 1348, EN 1348
Packaging, Coverage / Consumption


NEOFIL F15 is packed in 25 Kg bags.



Approx. 3.5 to 4.25 Kg NEOFIL F15 per m² using notched trowel on smooth surface. Consumption will vary according to type of tiles and support condition.

Shelf Life & Storage


Store in dry covered place in the original closed bags


Shelf life:

12 months if stored as recommended.

Technical Properties




Dry density

1.3 kg/L

Wet density

1.50 kg/L


2.0 g/L

Water resistance


Open time

Approx. 30 minutes

Workable time

45 minutes

Wall grouting

After 10 hours

Floor grouting

After 24 hours

Shear strength

1.6 N/mm

Adhesion strength (EN 1348)
Initial adhesion at 28 days 1.5 N/mm²
Adhesion after heat ageing 1.1 N/mm²
Adhesion after water immersion 1.3 N/mm²
Adhesion after Freeze-thaw cycle 1.0 N/mm²


All values are subject to 5-10 % tolerance

Application Information
Instructions for use

Surface preparation

All surfaces should be sound, clean & uncontaminated.  This preparation should leave an exposed surface free from dust, loose particles, deleterious matter, oil, grease, chemical films & other contaminant.

All cracks and joints should be treated with crack and joint fillers.
The surface of substrates must be moistened slightly with clean water to reduce the absorption of water from the mortar.  Do not moisten the tiles.
Allow gypsum supports to cure sufficiently; percentage of humidity must not exceed 10%.
Gypsum substrates are highly porous and must be treated by PRIMER A16, a PVA based primer. Primer should be left on a tack-free condition for 2-3 hours before applying the adhesive.
If the substrate is excessively porous, a second coat of primer shall be applied again.


Add NEOFIL F15 bag of 25 Kg into a container of 5 - 5.25 liters of water, mix until a uniform, lump free consistency mix is achieved. For mixing process, a slow speed drill (200 – 300 rpm) fitted with a suitable paddle is recommended.

Keep the obtained mix for 5 minutes and then remix before application.


Spread NEOFIL F15 on the substrate to a uniform thickness of 3 mm using a toothed spatula, the first pass with its smooth part and the second pass with the toothed part.

Place the tiles onto the adhesive bed. Apply sufficient pressure on the tile during fixing with slight twisting movement in order to ensure good contact with the adhesive.

Apply enough material that can be tiled during the adhesive’s open wet time. Spreading larger areas may results in drying the adhesive before tiles can be fixed causing poor adhesion.

In case of large size tiles, it is necessary to spread the adhesive also to the backside of the tile and then place the tile into the adhesive bed.


Remove excess adhesive with damp cloth before the material has set. Joint grouting between tiles may be commenced 10 hours after tiles has been laid on the walls and 24 hours after tiles are laid on the floors.


Tools and equipment should be cleaned with water immediately after use. Hardened materials should be mechanically removed.


  • To achieve improve adhesion strength, it is recommended to replace water with ELASTOKOL
  • Stiffened mortar  must neither be diluted with water nor with fresh mortar
  • Do not use NEOFIL F15 on metal, wood or non-absorbing surfaces
  • Do not apply NEOFIL F15 in rainy weather, high winds and sand storms
  • Do not apply under direct sun
  • Keep equipment cool and use cold water
  • Porosity of tiles and substrates has significant effect on adhesive strength of tiles
Additional Information
Health & Safety

NEOFIL F 15 can be harmful to skin as it contains cement powders which may releases alkalis when mixed with water.


During application, wear appropriate protective clothing, goggles, gloves and respiratory equipment if necessary.


In case of contact with skin, rinse with water and again wash thoroughly with soap and water. In case of contact with eyes, rinse with plenty of water and seek medical advice accordingly.


If ingested, obtain medical attention immediately. Do not induce vomiting.

Important note

The information in this Technical Data Sheet is based on Colmef Monneli’s experience. Colmef Monneli does not accept any liability arising from the use of its products as it has no direct or continuous control over where or how its products are applied. All Colmef Monneli’s Data Sheets are updates on regular basis. It is the user’s responsibility to obtain the latest version.

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