DECHU ULTRA

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

(C2 TE – EN 12004)
(TYPE 2 T – IS 15477:2019)
Pack Size: 30 Kg
Color: Grey & White
 

Polymer-modified Improved Tile Adhesive

DECHU ULTRA is a cementitious, polymer-fibre-modified tile adhesive with enhanced performance and no vertical slip. It is suitable for fixing ceramic tiles, vitrified tiles, and natural stone on floors and walls in both internal and external applications.

Characteristics

  • C2 TE compliant with EN 12004 standard

  • Type 2 T compliant with IS 15477:2019

  • Excellent adhesion

  • Allows tile installation from top to bottom

  • No vertical slip

  • Application thickness up to 10 mm

  • Easy to trowel

  • Suitable for tile-on-tile applications

  • Extended open time

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 

 

Method Statement

Usage Guide

DECHU ULTRA is a tile adhesive certified as C2 TE according to EN 12004 and Type 2 T according to IS 15477:2019. It is designed for fixing vitrified tiles, ceramic tiles (glazed and terracotta), and natural stone on floors and walls over cementitious renders, cementitious screeds, and concrete substrates.

Indoor & Outdoor Use

Suitable for horizontal and vertical surfaces, including:

  • Cement and cement-lime plaster

  • Cement screeds

  • Cement ground coats

  • Concrete surfaces

Substrate Prepartion

DECHU ULTRA 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 (residual moisture below 0.5%) and gypsum substrates (residual moisture below 1%) should 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.

Application

  1. Pour DECHU ULTRA 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 mixture is obtained.

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

  4. Apply the mortar using a suitable notched trowel. Select the appropriate notch size to ensure proper 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. Fresh excess mortar can be removed with water. Hardened material can only be removed mechanically.

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

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

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

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