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construction chemicals

CONSUMPTION Recommended

CONSUMPTION Recommended consumption amount for a double - coat application on 1 m 2 surface is 1.0 – 1.5 liters. The said values may vary, depending on the surface and ambient conditions. PACKAGING Megaİzo PU 6 is delivered as a set in metal buckets, containing net 20 l of component A and 20 l of component B. SHELF LIFE The shelf life of the product is 9 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. 83

Megaİzo PU Mastik LM Polyurethane Based, Single Component, Low Module Joint Sealant PRODUCT DESCRIPTION Highly elastic, low module polyurethane joint sealant for construction joints. AREAS OF USE Megaİzo PU Mastik LM is used to fill the expansion joints of buildings and heavy structures for sealing and permanent elasticity purposes. It is used, particularly, for the joint spots of precast elements, roofs, rainwater gutters, the joint spots and seams of rainwater drainage pipes, antenna and chimney flashings to prevent leakage. It is suitable for use on horizontal and vertical surfaces of indoors and outdoors spaces. PRODUCT ADVANTAGES • Highly resistant to external weather conditions and negative adverse impacts. • Fit for use in joints with flexibility by up to 25 %. • Preferable especially on account of the minimum resistance it applies to the structure in the case of expansion joints. • UV resistant. • Free from affects caused by temperature changes and chemicals. • Cured without bubbling. • Maintains elasticity for a long period of time without any loss in volume. • Allows for paint application thereon subsequently. • A ready to use product which is applied easily and rapidly. PERFORMANCE Shore A hardness 25 DIN 53505 Elasticity module 0.4 N/mm 2 DIN EN ISO 8340 Tensile in 100 % elongation 0.9 N/mm 2 DIN 53504 Tensile strength 1.5 N/mm 2 DIN 53504 Rupture strength 6 N/mm 2 DIN 53515 Elongation at breaking % 650 DIN 53504 Volume change < %5 DIN 53505 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 PROCEDURE Application Surfaces Indoors and Outdoors Walls; - Cement based plaster - Concrete - Ceramic - Plaster - Natural rock - Marble - Wooden - Aluminum - Metal plate - Brick - Enameled surface Indoors and Outdoors Floors; - Cement based trowel coating - Concrete - Ceramic - Plaster - Natural rock - Marble - Wooden - Aluminum - Metal plate - Brick - Enameled surface Surface Preparation • Application surfaces should be sound, clean, dust-free, and free from molding oils and other foreign substances. Such layers that would reduce adherence as oil, grease, dirt, paint, cement foam and rust should be thoroughly cleaned prior to application. • The surfaces, on which Megaİzo PU Mastik LM is to be applied, should be cleansed of oil and dirt with water and solvent-based cleaning supplies. The surfaces should be sanded or sandpapered where considered necessary. • Megaİzo PU Mastik LM adheres excellent to many surface types even without the need for primer application. However; in the cases, where the surface cannot be cleaned from dust completely or is likely to be exposed to high mechanical impact, joint butts should be applied MegaFilm İzo PU or MegaFilm İzo Epo, the surface preparation primer. headpiece, and the gun should be directed through a 45° angle. • Megaİzo PU Mastik LM should be applied continuously at a slow rate, making sure the product fully contacts the joint butts and any air void is not allowed. • Megaİzo PU Mastik LM should, once the surface is filled, be smoothed by applying slight pressure toward the edges of the joints, making sure any overflowing is prevented, and should so be ensured to adhere to the edges. Application Recommendations • Especially in the case of deep joints, the product should be applied with porous backing rod in order to control the thickness and prevent trilateral bonding. • In the cases, where sharp edge lines or very clear joint edges are desired on the surfaces, on which Megaİzo PU Mastik LM is to be applied; masking tape should be used. The masking tape should be removed before the mastic is cured. • In the cases where paint application is intended on Megaİzo PU Mastik LM, a compatibility test is recommended to be conducted in advance. • Megaİzo PU Mastik LM should be consumed rapidly after the opening of the package as the curing of the product begins upon contact with air. • 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. • 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 Curing rate Film formation time 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 Megaİzo PU Mastik LM is a ready to use product. Mixing Equipment Megaİzo PU Mastik LM is a ready to use product. Mixing Period Megaİzo PU Mastik LM is a ready to use product. Application Equipment • Sausage gun • Scraper Equipment Cleaning The equipment used should be cleaned with acetone or polyurethane cleaner following the application before the product hardens. TECHNICAL PROPERTIES Chemical Structure: Moisture cured polyurethane Density: 1.25 gr/cm 3 Color: Gray / White, custom colors upon demand Temperature Resistance: - 40°C and +90°C 2.5 - 3.0 mm / 24 hours 45 minutes CONSUMPTION The consumption amount varies, depending on the depth and width of the joint gaps on the application surface. Joint Width (mm) Joint Depth (mm) Joint Length (m) 10 8 7.5 15 8 5 20 10 3 25 12 2 30 15 1.33 Application Methods • Sausage formed Megaİzo PU Mastik LM should be placed into a gun with a suitable 84

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