Universele kleefmortel PCI Nanolight® 15 kg

Preparation of substrate

Minimum age of the substrate: - PCI Novoment M1 plus and/or PCI Novoment Z1 screed: 24 hours - PCI Novoment M3 plus and/or PCI Novoment Z3 screed: 3 days - Cement screed: 28 days - Concrete: 3 months The substrate must be structurally sound, clean and able to bear weight. Oil stains, residues which could impair adhesion and other spills must be thoroughly removed. The substrate must be plumb and flush in accordance with DIN 18 202 for the installation of ceramic tiles and flagstones. For the installation outdoors the substrate must have a slope of min. 1.5%. Plaster/render substrates must be released by the manufacturer for tiling and must be suitable for the intended purpose. Level small-surface irregular substrates with PCI Nanolight (up to 15 mm) or large surfaces alternatively with PCI Polycret 5/20, PCI Pericret, PCI Periplan or PCI Periplan Fein before tiling. Level timber floorboards with PCI Periplan Extra before the installation. Screeds on isolation layers or insulation layers tend to deform due to nonuniform dehydration (concave arching). To avoid excessive lowering of the edge at a later stage please contact the PCI Technical help-line prior to levelling or tiling. Prime very absorbent cement based substrates and aerated concrete with PCI Gisogrund, diluted 1 : 1 with water. Prime rough-ground anhydrite screeds, gypsum based flowable screeds, gypsum based substrates and mastic asphalt screeds in the interior with undiluted PCI Gisogrund. Prime magnesite screeds with PCI Gisogrund 404, diluted 1 : 1 with water. Prime cementitious substrates and gypsum-based substrates with PCI Gisogrund Rapid if time is a factor. Prime old ceramic tiles with PCI Gisogrund 303. Old PVC coverings must firmly bond to the substrate, any contamination such as grease etc. must be removed and the bond area sanded and primed with PCI Gisogrund 303. Metallic substrates in the interior such as steel and aluminium which are not exposed to moisture must be well supported to provide resistance to bending and oscillations. The substrate must be free from rust and grease. Prime metal with PCI Gisogrund 303. Wooden particle boards or OSB boards may have a moisture content of max. 10%. The wooden particle board (V100) or OSB board must be at least 25 mm thick when installed on floors and at least 19 mm when installed on walls. The particle boards must be screwed to the substructure at a distance between screws of max. 40 cm. The edge joint must be at least 8 mm wide. The butt joints of the particle boards must be glued. Prime wooden particle boards and OSB boards in dry areas with PCI Gisogrund 303, when exposed to moisture with PCI Wadian, and waterproof with PCI Lastogum. Allow primers to dry. Newly-laid cement screeds (heated and unheated) must not have a residual moisture content of more than 4%, anhydrite screeds and gypsum based screeds not more than 0.5% (measured with a CM meter).

Application procedure

1. Apply undiluted PCI Lastogum by roller (lambskin roller), brush (wall brush, float), or trowel to the substrate covering the entire surface. A minimum of two layers is required.
2. Place PCI Pecitape 10 x 10 and/or PCI Pecitape 42.5 x 42.5 over pipe culverts and floor drains, in corner joints and floor/wall junctions press PCI Pecitape 120 into the first layer of PCI Lastogum. Projecting edges of the fabric are covered by the second layer.
3. Any further layer is applied when the first layer is dry. We recommend to apply the first layer with PCI Lastogum grey and the following layer(s) with PCI Lastogum white for better coverage control. The applied layer is too thin if the previous colour is visible; this should be avoided.
4. When PCI Lastogum has cured, tiles and flagstones can be laid on vertical and horizontal areas using PCI Nanolight, PCI Flexmörtel or PCI Flexmörtel-Schnell. Calibrated natural stone should be laid using the adhesives for natural stone PCI Carraflex and/or PCI Carralight

Please note:

• Do not apply at temperatures below +5 °C and above +25°C and under extreme hot and windy conditions.
• When laying tiles in the interior on existing ceramic wall tiles not subject to wet conditions it is possible to use PCI Nanolight as a bonding slurry instead of the primer PCI Gisogrund 303; however the PCI Nanolight layer must have cured before tiling.
• Apply the special bonding slurry PCI Polyhaft and allow to cure when laying tiles on old ceramic or natural stone coverings in the exterior or when being exposed to permanently wet conditions (e.g. shower facilities etc.).
• When laying tiles on heated screeds, the regulation DIN 4725-4 and the ZDB leaflet „Ceramic tiles and flagstones, natural stones and concrete ashlar on heated, cementbased flooring constructions” must be followed.
• The open time is reduced in case of absorbent substrates (recommendation: priming with PCI Gisogrund or PCI Gisogrund Rapid).
• Never add water or dry powder to reconstitute a PCI Nanolight mix which has already begun to set.
• When laying floor coverings in the exterior use either PCI Nanolight in the combined method (buttering/floating) or the flowable mortar PCI Nanoflott light and/or PCI Rapidflott.
• When using PCI Nanolight to lay ceramic tiles in swimming pools a curing time of minimum 7 days must be followed before filling the pool with water.
• When laying glass mosaic in swimming pools only front-sided paper-faced glass mosaic or frontsided foil-faced glass mosaic is allowed to be used.
• Translucent glass mosaic appears darker when laying it with PCI Nanolight. If this is not desired please use PCI Nanolight White or PCI Durapox NT/NT Plus for wet areas.
• Glass tiles with a reaction resin coating on the bottom side may only be laid with PCI Nanolight if the coating is alkali resistant.
• When laying mosaic tiles it is necessary to rake joints clean to a uniform depth to ensure proper, stainfree grouting afterwards. This also applies to front-sided paperfaced mosaic.
• Please follow the standard DIN 18 515-1 „Outer claddings” when laying tiles on facades.
• Suitable tools are available from Collomix GmbH, Horchstraße 2, 85080 Gaimersheim/Germany, www.collomix.de.
• Clean contaminated tools and ceramic with water immediately after use; once cured product can only be removed by mechanical scraping.
• The adhesives PCI Carralight, PCI Carraflex, PCI Carraflott NT or PCI Carrament are to be used for natural stone.
• Store in dry conditions, no permanent storage over +30 °C. Open bags must be closed immediately after use.