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construction chemicals

MegaFix K Cement Based

MegaFix K Cement Based Thick Ceramic Adhesive Mortar PRODUCT DESCRIPTION Cement based, thick bearing ceramic tile adhesive mortar with reduced slippage and extended retention time for uneven, defective surfaces. AREAS OF USE MegaFix K is used for the adhesion of coating materials in wall dimensions up to 25x40 cm and ceramic tile dimensions up to 33x33 cm horizontally and vertically in indoors spaces and horizontally in outdoors spaces on sound and dust free cement based plaster and trowel coating with low water absorption. Minimizing the surface defects thanks to its thick filling, the product is used for the adhesion to floor of especially such coating materials as marble, clinker and natural rock. PRODUCT ADVANTAGES • Enables easy application for such surfaces that are uneven and defective to the extent that they do not necessitate repair. • Ensures the required mortar thickness for such coating materials as marble and natural stone. • Poses a longer workable time thanks to the elongated retention time thereof. • Prepared and applied easily. • Does not cause slippage in the case of vertical applications. PERFORMANCE Initial tensile adhesion strength ≥ 0.5 N/mm 2 TS EN 1348 Tensile adhesion strength after water immersion ≥ 0.5 N/mm 2 TS EN 1348 Tensile adhesion strength after thermal aging ≥ 0.5 N/mm 2 TS EN 1348 Tensile adhesion strength after freezing - thawing cycle ≥ 0.5 N/mm 2 TS EN 1348 Tensile adhesion strength after retention time ≥ 0.5 N/mm 2 TS EN 1346 Slippage ≤ 0.5 mm TS EN 1308 Reaction to fire A1 TS EN 13501 - 1 The foregoing values represent the results of the laboratory tests conducted at 23 ± 2°C temperature and 50% ± 5 relative humidity conditions. The values provided as per the table may vary depending on the surface and ambient conditions. REFERENCE STANDARDS Certifications/Standards TS EN 12004/C1TE Ministry of Public Works and Settlement Item No. Ministry of Public Works and Settlement Item No.: 04.013/1 Ministry of Public Works and Settlement Item No.: 04.013/4 QUALITY CERTIFICATES TSE CE APPLICATION PROCEDURE Application Surfaces Indoors Walls; - Cement based plaster (MegaFilm primer applied) - Concrete (MegaFilm or MegaFilm BB primer applied) Indoors and Outdoors Floors; - Cement based trowel coating (MegaFilm primer applied) - Concrete (MegaFilm or MegaFilm BB primer applied) • Due care must be taken to ensure that MegaFix K does not form a film layer on the surface during the application. In the cases of formation of film layer on the surface, the adhesive should be scraped off the surface and should never be used again. • The coating material should be placed on the surface and be ensured to settle thereon with a rubber tip hammer. • Joint filling should be initiated minimum 24 hours after the adhesion. • In the case of the applications with ceramic tiles with dimensions in excess of 20x20 cm in indoors and outdoors spaces; double side adhesion should be applied. • The product should not be used for ceramic tiles for floors larger than 33x33 cm and for walls larger than 25x40 cm. Application Recommendations • The wall and floor ceramic tiles in light colors are recommended to be adhered with a colorful option of MegaFix. • MegaLatex may be employed in order to enhance the performance of the product. • The product should, once mixed, be used before the expiration of its pot life. Any mortar, the pot life of which has expired, should not be used during the application. • Any such foreign substance as lime, cement or plaster should not be added to the mortar prepared. • Any extra water should not be added to the mixture. • The product should not be applied on unsound surfaces. The soundness and the load bearing capacity of old surfaces should be checked prior to adhesion. • The surface should be preserved from air currents and water contact during and after the application. • The product should not be applied to such surfaces, which are exposed to risk of freezing within the next 24 hours, which are frozen or the frost of which is thawing. • Due care should be taken to ensure that the material is not exposed to direct sunlight in hot weather conditions, and the product should be mixed with cold water. • The product should not be applied on extremely windy weather conditions or on hot surfaces, which are exposed to direct sunlight; and in the cases, where application is imperative under such conditions, the environment and the surface should be prepared for application in advance. • The product should not be applied in rainy weather conditions, and the application surface should be preserved from rain for a period of 24 hours. • Refer to our technical support hotline for recommendation on different surface applications. (PHONE: 444 4 595) Surface and Ambient Temperature The surface and ambient temperature should be between +5°C and +35°C whilst at application. Application Limits Useful time for prepared mortar - Pot life Workable time Smoothing time Required standby time for joint application Opening the traffic Maximum 3 hours Maximum 30 minutes 15 minutes 24 hours 24 - 48 hours The foregoing values represent the results of the laboratory tests conducted at 23 ± 2°C temperature and 50% ± 5 relative humidity conditions. The values provided as per the table may vary depending on the surface and ambient conditions. APPLICATION INSTRUCTIONS Mixing Ratio The product should be mixed with water, weighing equal to 24 - 26 % of the product. (6.0 - 6.5 liters of water for a 25 kg package) 11 Surface Preparation • The application surface should be dry, clean, sound and dust free, and should have been cleansed of oil, dirt or any materials that may prevent adhesion, and any such materials as mortar and cement residues should be scraped from the application surface. • The dusty surface on the reverse side of the ceramic tile should be moisturized and cleaned. •The surface defects, which are deeper than 1 cm, should be repaired with MegaTamir İ or MegaTamir K 24 hours in advance of the adhesive mortar application. In the cases, where structural repair mortar should be used; MegaTamir İ Yapısal or MegaTamir K Yapısal should be preferred. • Upon the completion of the surface cleaning, MegaFilm primer should be applied in a single coat with a brush and be left to dry for 1 to 2 hours in order to enhance the bonding strength and stabilize the surface absorption. • Exposed concrete surfaces should be applied MegaFilm BB exposed concrete primer in single coat and be left to dry for minimum 3 hours prior to the application of the adhesive mortar in order to enhance the adhesion strength. • In the case of wet space applications, waterproofing should be ensured with Megaİzo Lastik 10 on the surface, prior to ceramic flooring. Minimum class C2 adhesives should be preferred for such surfaces. Application Methods • MegaFix K should be applied to the surface with the notched trowel determined with respect to the size of the ceramic tile and the structural condition of the surface. Mixing Equipment • Low speed electrical mixer (400 cycles/min.) • Special tip stirring equipment Mixing Period The product should be stirred with a low speed mixer until any dry dust and globs are eliminated. The mortar should, then, be stirred once again for 1 to 2 minutes after being had settled for 5 to 10 minutes following preparation. Application Equipment • Steel notched trowel determined with respect to the size of ceramic tile and the structure of the surface • Rubber tip ceramic hammer Equipment Cleaning The equipment used should be cleaned with water following the application before the mortar dries. TECHNICAL PROPERTIES Chemical Structure: Cement based thick bearing ceramic tile adhesive mortar Dry Density: 1.45 ± 0.05 gr/cm 3

Mortar Density: 1.85 ± 0.05 gr/cm 3 Grain Size: ≤ 1800 µm Color: Gray, white Temperature Resistance: -15°C to +80°C CONSUMPTION The consumption amount varies depending on the condition of the application surface and the coating material. Ceramic Tile Size Notch Size Consumption 10x15 to 25x40 cm Single side adhesion: 5.0 - 5.5 kg/m 2 8x8x8 10x15 to 33x33 cm Double side adhesion: 7.5 - 8.0 kg/m 2 10x15 to 25x40 cm Single side adhesion: 6.0 - 6.5 kg/m 2 10x10x10 10x15 to 33x33 cm Double side adhesion: 8.0 - 8.5 kg/m 2 PACKAGING MegaFix K is delivered in net 25 kg kraft bags, which are stowed in 54 pcs. on a 80 cm x 100 cm palette (1350 kg). SHELF LIFE The shelf life of the product is 12 months when stored within non tampered original packaging in dry (maximum relative humidity 60 %) and cool (ambient temperature between +5°C and +25°C) environment. STORAGE CONDITIONS The product should be stored within non tampered original packaging in dry (maximum relative humidity 60 %) and cool (ambient temperature between +5°C and +25°C) environment. It should not be exposed to direct sunlight. The container of the product should be closed firmly when not used. SAFETY PRECAUTIONS Please refer to the Safety Data Sheet (SDS) as appropriate for easy and safe application. 12

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