Schlüter-DILEX-KSBT  Structural movement profile with edge protection

Schlüter-DILEX-KSBT is a structural movement profile with edge protection, consisting of side anchoring legs of aluminium or stainless steel connected to a 20 mm or 30 mm wide movement zone of soft synthetic rubber.

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Product image DILEX-KSBT 1©Schlüter-Systems KG
Product image DILEX-KSBT 2©Schlüter-Systems KG
Cross-section drawing DILEX-KSBT 1©Schlüter-Systems KG
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Product image DILEX-KSBT 1
Product image DILEX-KSBT 2
Cross-section drawing DILEX-KSBT 1

General product information

What this product does

Schlüter-DILEX-KSBT is a maintenance free structural movement profile for ceramic tile or natural stone coverings.

DILEX-KSBT assists in reducing the transmission of impact sound in coverings, such as stair landings.

If the closed movement zone is unable to absorb movements, the connector piece can be cut, which enables the 20 mm insert to absorb movements of ±5 mm and the 30 mm insert to absorb movements of ±10 mm.

The profile is suitable for installation in floor areas and with the same consistent appearance in wall areas. It is equally appropriate for use in wall and ceiling surfaces made of gypsum plasterboard or directly in plaster or screed.

The trapezoid perforated lateral attachment profiles of stainless steel or aluminium are connected with a 20 mm or 30 mm soft movement zone of thermoplastic elastomer.

The profile’s rubber insert is replaceable in case of damage.

The upright metal legs also effectively protect the edges of the adjacent coverings. The wide movement zone limits the load-bearing capacity in case of direct point loads on the soft zone.

A reinforcement cover strip is available for the 30 mm wide profile and additional measures can be adopted for the 20 mm wide profile.

How to install this product

  1. Select Schlüter-DILEX-KSBT according to the tile thickness.
  2. Apply tile adhesive to the area where the profile is to be installed, using a notched trowel.
  3. Press the trapezoid perforated anchoring leg of DILEX-KSBT firmly into the adhesive and align it. The profile must align directly with existing joints in the substrate below.
  4. Trowel tile adhesive over the trapezoid perforated anchoring leg to ensure full coverage. Trowel tile adhesive against the vertical anchoring legs at an angle.
  5. Firmly press the adjoining tiles into place and align them in such a way that the upper profile edge is flush with the tile (profile should not protrude over the surface of the covering; preferably, it should be approx. 1 mm below the top level of the covering). Full coverage must be obtained between the tile and the profile’s anchoring leg. Always adjoin the uncut tile edge to the profile.
  6. Leave a joint of approx. 2 mm to the profile, and completely fill the joint between the profile and the tile with grout.
  7. To install the profile insert DILEX-KSBT 30/VE into the profile DILEX-KSBT 30, use a utility knife to cut the grooves of the soft zone.
    Apply the installation adhesive Schlüter-KERDI-FIX on the back of the profile insert and press it into the grooves.
  8. When creating cross joints, trim the profiles to ensure that the trapezoid perforated anchoring legs do not overlap in installation.

What this product is made from

  • E = stainless steel
    • V2A, material no. 1.4301 = AISI 304
    • V4A material no. 1.4404 = AISI 316L
  • A = aluminium

The movement zone consists of soft thermoplastic rubber with inserts made of a harder material.

Material properties and areas of application

The suitability of a proposed profile type must be verified based on the anticipated chemical, mechanical and/or other stresses.

Schlüter-DILEX-EKSBT with stainless steel support profiles made of material no. 1.4301 (V2A) or 1.4404 (V4A) are especially suitable for applications which, in addition to high mechanical durability, require resistance to chemical stresses from sources such as acidic or alkaline media or cleaning detergents. Depending on the anticipated chemical stresses, customers can choose between the alloy materials 1.4301 (V2A) or 1.4404 (V4A). The use of V4A is recommended if consistent exposure is expected, for example in the case of swimming pools (fresh water). Even stainless steel of quality 1.4404 is not resistant to all chemical stresses such as hydrochloric and hydrofluoric acid or certain chloride and brine concentrations.

In certain cases, this also applies to seawater pools. Special anticipated stresses should therefore always be verified in advance.

Schlüter-DILEX-AKSBT with lateral anchoring leg profiles of aluminium are sensitive to alkaline media. Cementitious materials, in conjunction with moisture, become alkaline. Since aluminium is sensitive to alkaline substances, exposure to the alkali (depending on the concentration and time of exposure) may result in corrosion (aluminium hydroxide formation).

For this reason, remove mortar or grouting material immediately from all visible areas and do not cover freshly installed coverings until dry.

Solidly embed the profile in the setting material to prevent alkaline water from accumulating in small cavities.

Schlüter-DILEX-KSBT 30/VE is a U-shaped profile insert made of brushed stainless steel. It is added for visual appeal and strengthens the soft movement zone of the profiles DILEX-KSBT 30.

The flexible movement zone of all DILEX-KSBT profiles is made of highly flexible thermoplastic elastomer. This material is highly resistant to chemicals. It can withstand the chemical stresses typically associated with tile coverings and has been specially treated to resist fungi and bacteria. The insert is resistant to temperatures ranging from -60 °C to +100 °C. The synthetic rubber can be heat bonded to extend the profile length.

The tile inserts DILEX-KSBT 20/K or 30/K are available in all colours for cross joints created with the movement profiles DILEX-KSBT.

How to look after this product

Schlüter-DILEX-KSBT is resistant to fungi and bacteria and requires no special maintenance or care.

The flexible connection profile of thermoplastic elastomer is easily exchangeable. Stainless steel surfaces exposed to the environment or aggressive substances should be cleaned periodically, using a mild household cleaner. Regular cleaning maintains the neat appearance of stainless steel and reduces the risk of corrosion. All cleaning agents must be free of hydrochloric and hydrofluoric acid.

Avoid contact with other metals, such as regular steel, to prevent corrosion. This also includes installation tools such as trowels or steel wool, e.g. for the removal of mortar residue.

We recommend the use of the stainless steel cleaning polish Schlüter-CLEAN-CP.