DECHU CLASSIC

Discover DECHU’s premium range of tile adhesive solutions engineered for superior bonding strength, durability, and reliable performance across residential, commercial, and industrial applications. 

(C1 T – EN 12004)
(TYPE 2 T – IS 15477 : 2019)
Pack Size: 30 Kg
Color: Grey & White

 

Tile Adhesive For Ceramic  & Vitrified Tiles

DECHU Classic is a polymer-fibre-modified, cement-based tile adhesive designed for fixing ceramic and vitrified tiles on internal floors and walls. It offers excellent workability, prolonged open time, and no vertical slip for reliable tile installation.

Characteristics

  • C1 T compliant with EN 12004 standard
  • Type 2 T compliant with IS 15477:2019
  • Suitable for ceramic and vitrified tiles
  • No vertical slip
  • Application thickness up to 10 mm
  • Prolonged workability
  • Adjustable positioning
  • Excellent workability
  • Suitable for tile-on-tile application on floors

Documents & Downloads

Technical Data Sheet (TDS)

Download Technical Data Sheet 

Material Safety Data Sheet (MSDS)

Download Material Safety Data Sheet 

Method Statement

Download Method Statement 

 

Usage Guide

DECHU Classic is a tile adhesive certified as C1 T according to EN 12004 and Type 2 T according to IS 15477:2019. It is designed for fixing vitrified and ceramic tiles, including glazed and terracotta tiles.

Indoor Applications

Suitable for horizontal and vertical surfaces, including:

  • Cement and cement-lime plaster
  • Cement screeds
  • Cement ground coats
  • Concrete surfaces
 
 

Substrate Preparation

The adhesive should be applied to even, compact, and structurally sound substrates that are free from substances that may reduce adhesion, such as grease, bitumen, oil, paint, and dust.

  • Concrete substrates should be at least 1 month old.

  • Cement screeds and plasters must be fully cured.

  • Anhydrite substrates should have residual moisture below 0.5%, be mechanically roughened, and cleaned of dust.

  • Aerated concrete surfaces must be free from dust.

  • Substrates must not be wet during application.

  • Existing dirt, loose layers, and paint coatings must be mechanically removed.

  • Absorbent substrates should be dampened, with excess water removed before application.

Applications

  1. Pour DECHU Classic into a clean container containing the precisely measured amount of clean water.

  2. Mix using a drill and mixer until a smooth, homogeneous, lump-free paste is obtained.

  3. Allow the mixture to rest for 5 minutes, then mix again before application.

  4. Apply the adhesive using a suitable notched trowel. Select the appropriate notch size to ensure adequate coverage and full bedding of the tiles.

  5. Do not soak tiles in water before fixing.

  6. For larger tiles and outdoor applications, use the back-buttering method. Apply an additional thin layer of mortar to the back of the tile to achieve a contact area greater than 90%.

  7. Place the tiles within the adhesive’s open time to ensure proper adhesion.

  8. Remove fresh excess mortar with water. Hardened adhesive can only be removed mechanically.

  9. Wall grouting can be carried out using DECHU grouts after approximately 8 hours for gres tiles and 24 hours for porous tiles.

  10. Floors can be opened to light foot traffic after approximately 24 hours.

  11. Expansion joints, wall and floor corner joints, and joints around sanitary equipment should be filled with suitable sealants or treated using appropriate methods.

 
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