Technical data sheet CRISTALLIT®-FLEX Flexible natural stone adhesive mortar
Material number
Contents
Unit of quantity
Packaging
Colour
205419102
25
KG
Bag
White
205419103
5
Areas of application For laying discolouration and deformation-sensitive natural stone For laying translucent materials for heated and unheated substrates For walls and floors For interior and exterior use
Product features Cementitious, white rapid natural stone adhesive C2 FTE after DIN EN 12004 Pot life of ca. 60 minutes Open time of ca. 20 minutes Can be walked on and joined after ca. 4 hours Adhesive bed thicknesses ca. 1 - 10 mm
Advantages rapid construction progress Effective crystalline binding of the mixing water - prevents discolouration and deformation of sensitive natural stone
SCHOMBURG GmbH & Co. KG · Aquafinstr. 2–8 · D-32760 Detmold (Germany) · Tel. +49-5231-953-00 · Fax +49-5231- 953-333 · schomburg.com 1/4
16/04/2025
Technical data sheet CRISTALLIT®-FLEX Existing test certificates Conformity DIN EN 12004
Technical Data Material properties Base material
Classification of the reaction to fire in accordance with DIN EN 13501-1
sand cement Additive (polymer modified) A1fl
Mixing Maturing time Water addition
approx. 3 minutes approx. 7.75 l - 8.25 l at 25 kg
Application Substrate temperature Pot life Consumption pro m² and mm layer thickness Foot traffic after Consumption with 6mm notched trowel Consumption with 8mm notched trowel Consumption with 10mm notched trowel Application temperature Available after Hardening time / full resilience Open time Adhesive open time (min.)
approx. 5 - 25 °C approx. 60 minutes approx. 1.2 kg/m² approx. 4 hours 2.6 kg/m² 3.5 kg/m² 4.3 kg/m² approx. 5 - 25 °C approx. 4 hours approx. 7 hours approx. 20 minutes ≥ 15 minutes
Processing equipment Aids/tools Toothed trowel Stirrer Trowel Occupational safety equipment
Suitable substrate Firmly adhering tiled finishes Concrete, cement screed (CT), floor levelling compounds, calcium sulphate screeds (CA, CAF), mastic asphalt screeds (AS), magnesia screeds (MA) Cement-based plaster, gypsum plaster, cement-lime plaster, lightweight plaster Tile bearing elements, gypsum fibre boards, gypsum boards, raised floors, cement and fibre cement boards, decoupling mats & panels, dry screeds Bonded waterproofing; the suitability of the substrate must be checked and observed, taking into account the planned water impact class of DIN 18534 and DIN 18531.
Preparing the substrate Requirement for substrate 1. Dry 2. Load-bearing 3. Even 4. Sealed in the surface 5. Free of cracks 6. Free of adhesion inhibiting substances and laitance layers
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Technical data sheet CRISTALLIT®-FLEX Measures for substrate preparation The substrate, substrate preparation, and application as per DIN 18157, part 1, are relevant for tiling.
Preparing the surface 1. Check the application substrate and determine the moisture content using the CM method. 2. Remove impurities, adhesion-reducing substances and binder accumulations/laitance layers. 3. Prime absorbent substrates with ASO-Unigrund-GE or ASO-Unigrund-K. 4. Prime non-absorbent substrates with ASO-Unigrund-S.
Moisture content of the CM measurement
Application Mixing 1. Fill the water into a clean mixing bucket and mix with the powder component with a stirrer to produce a homogeneous, lump-free mass. 2. After a settling period of ca. 3 minutes, thoroughly homogenise the compound again. 3. Do not mix more material than can be applied during the pot life.
Application 1. Spread the mixed mortar evenly across the substrate surface and comb through with a suitable notched trowel to suit the board size. 2. Apply the surfacing materials within the adhesive open time. 3. On horizontal external surfaces (e.g. balconies and terraces), harden CRISTALLIT-FLEX with UNIFLEX-F.
Cleaning tools Clean tools thoroughly with water after use.
Storage conditions Storage Store in a cool and dry place. Min. 12 months in the original canister. Promptly use opened container.
Disposal Product residues can be disposed of in accordance with disposal code AVV 17 01 07.
Notes When laying natural stone and synthetic stone, the product-specific properties of the coating materials (tendency to discolour, risk of curling, etc.) and the laying recommendations of the manufacturer must be taken into account. We recommend carrying out trial laying! Rooms, surfaces and building components that expect water exposure after DIN 18534, DIN 18531 and DIN 18535 must be protected by bonded waterproofing. Calcium sulphate screeds must be protected with the ASO®-Unigrund-GE or ASO®-Unigrund-K primer prior to laying. Calcium sulphate screeds must be protected with a barrier primer (e.g. ASODUR®-GBM) when laying large format tiles. Do not stir or add water to existing material that has already set in order to make it workable again. Use a barrier primer such as ASODUR®-GBM to protect substrates that are sensitive to moisture, such as magnesite screeds, from direct contact. Protect the product from water, frost, draughts, direct sunlight and mechanical loads until it has dried completely.
Relevant regulations Planning, inspection of substrates and building site circumstances, laying, grouting and subsequent care of the work must be done in accordance with the relevant DIN standards and recognised rules of technology (e.g. the ZDB Data sheets of the Zentralverband Deutsches Baugewerbe e.V.(German construction Association) in the latest version.
SCHOMBURG GmbH & Co. KG · Aquafinstr. 2–8 · D-32760 Detmold (Germany) · Tel. +49-5231-953-00 · Fax +49-5231- 953-333 · schomburg.com 3/4
Technical data sheet CRISTALLIT®-FLEX Observe applicable safety data sheet! GISCODE: ZP1 Explanations Conformity / Declaration / Verification
The rights of the buyer with regard to the quality of our materials are based on our terms and conditions of sale and delivery. Our technical advice team will be happy to advise you in the case of requirements that exceed the scope of the application described here. In order to be binding, a legally binding written confirmation is required. The product description does not release the user from a duty of care. Lay a test area in the event of uncertainty. This version becomes invalid in the event of a new version being issued.
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