Description Kerakoll L34 Hybrid Hardwood Floor Adhesive is a certified, eco-friendly, organic, mineral adhesive for the high-performance laying of hardwood floors. Kerakoll L34 Hybrid develops a perfect balance between adhesive force and elasticity that guarantees the safe laying of prefinished and traditional hardwood floors on any type of substrate. Kerakoll L34 Hybrid Hardwood Floor Adhesive is designed for the easy installation of laying for traditional and prefinished wood floors made of any format or type of wood, and onto any type of substrate. It is suitable for interior floors in residential and commercial buildings and is suitable for heated substrates. Please note: Do not use Kerakoll L34 Hybrid Hardwood Floor Adhesive on substrates subject to rising damp; on heated subfloors not properly prepared; on anhydrite screeds not properly prepared and on a general basis on non-absorbent subfloors not properly prepared. Floors: – wood mosaic, industrial hardwood floors and according to EN 13488 and EN 14761 – solid wood elements without strips, thin strip, strip flooring and according to EN 13227 – solid wood tongue-and-groove boards and according to EN 13226 and EN 13228 – pre-finished, pre-polished, tongue-and-groove plywood strips and according to EN 13489 – wood flooring according to EN 14342 Substrates: – cement-based screeds – anhydrite screeds – screeds produced with Kerakoll Keracem Eco – wood panels – existing marble, ceramic or similar floors – cast asphalt screeds Instructions for use: Substrates must be compact, solid, level and not too rough. They must also be dimensionally stable, non-deformable, dry, clean and free of any rising moisture, cracks, dust and detaching substances. Cement-based screed or substrates consisting of marble, granite, ceramic or similar must have residual moisture at a maximum of 2% or 1.7%, in case of under floor heating. Anhydrite screeds must have residual moisture of a maximum of 0.5% or 0.2% in case of under floor heating. Cement-based screeds with high residual moisture (max 5%) or with dusty surface, flaky or weak parts must be treated with Fast One Coat DPM. Substrates consisting of existing marble, granite, ceramic or similar floors must be thoroughly cleaned and treated with Keragrip Eco Pulep; in case of high residual moisture (MC max 5% CM – RH max 90%) they must be treated with 3CW. Anhydrite screeds must be sanded clean using mechanical dust extraction equipment and treated with Fast One Coat DPM. Absorbent substrates with under floor heating must be treated with Fast One Coat DPM. On a general basis anhydrite and heated subfloors can’t be waterproofed and/or corrected with self levelling cement or gypsum-based products. Uneven or excessively rough substrates must be adjusted and/or levelled with suitable products such as Proflow Finish, Proflow MVS or with synthetic mortars produced with Fast One Coat DPM mixed with Quarzo 5.12. Read carefully the relevant technical data sheets before using the above listed products. Preparation: Kerakoll L34 Hybrid is ready-to-use. Open the packaging, remove the bag of desiccant and the protective cover from the surface of the adhesive. At the end of use, in case the product is not finished, it is necessary to apply carefully the clean protection film again, in order to avoid contact with air and the subsequent hardening. Insert the bag of desiccant once again before sealing the packaging with the lid. Application: Apply Kerakoll L34 Hybrid evenly over the substrate using a spreader no. 4, lay the hardwood floor strips on the fresh adhesive, pressing down hard enough to ensure full and even contact with the adhesive, making sure nothing rises up between the strips. Leave ≈ 7 – 10 mm for expansion between the wood floor and the walls (or other vertical elements). Cleaning: Remove residual traces of Kerakoll L34 Hybrid from the surface while still fresh using suitable cleaning wipes. The product can be removed from tools with Diluente 01 or alcohol. Once hardened, the adhesive can easily be removed from varnished surfaces by water and Supersoap. Special notes: Allow the floor to reach room temperature in the place where it is to be laid. The boards to be laid must have a moisture content of 5 – 9% for engineered floors, and of 7 – 11% for solid wood floors. Before laying, measure the moisture content of the substrate using a calcium carbide hygrometer. Before laying, measure the ambient temperature and that of the substrate, which must be higher than the minimum use temperature indicated in the technical data. In addition to the above recommendations, follow the hardwood floors manufacturer’s specific instructions. Technical Data: Appearance: neutral colour/oak paste Pack: 16kg bucket Shelf life: ≈ 12 months from production in the original sealed packaging Warning: protect from frost, avoid direct exposure to sunlight and sources of heat Viscosity of the mixture: ≈ 42000 mPa · s, rotor 7 RPM 50 Brookfield method Temperature range for application: from 10 °C to 35 °C Open time: ≈ 60 min. Foot traffic: ≈ 12 hrs Interval before normal use of engineered floors: ≈ 24 hrs Waiting time before sanding: ≈ 3 days (after full stabilisation of the hardwood floor) Coverage: ≈ 700 – 1300 g/m² Product Datasheet Click here to view this product on the manufacturers website.
