Yapseal Megalastic PU 350

It is used for waterproofing and protecting horizontal terraces of all buildings, roofs, balconies, parking lots, bridge tops and similar areas. It is also applied as a waterproofing material in wet area insulation, insulation of areas where plant root strength is required, and renovations of old waterproofing coatings.

Surface preparation is of great importance for optimum strength and appearance. The surface must be clean, dry, smooth, firm and free from dirt that may affect primer adhesion. The application surface moisture content should not be more than 5%. The surface compressive strength should be at least 25 Mpa and the adhesion strength should be 1.5 Mpa. Fresh concrete should be waited for at least 28 days to dry. Old coatings, dirt and organic components should be removed from the surface with sandpaper or shot blasting. Substances such as oil and grease on the surface should be cleaned. Defects on the surface should be corrected. It is the removal of weak particles on the surface and the dust formed after sanding from the surface. Significant defects and holes in the surface should be repaired with YAPBUILT© series structural repair mortars at least 24 hours before the application of weberdry PUR basic. The dilatation joints on the application surfaces should not be closed, and dilatation insulation tapes should be used for the continuity of insulation at these points. To ensure continuity of tightness, vertical and horizontal corners must be chamfered with structural repair mortars of the YAPBUILT© series. There is no need to apply primer on solid and high-quality concrete surfaces. Cementitious and absorbent surfaces such as wood and glass, metal, old ceramic, bitumen, acrylic coated surfaces should be primed with YAPFLOOR© EPOXY PRIMER.

YAPSEAL© MEGALASTIC PU 350 should be thoroughly mixed before application and applied to the primed surface to be applied using a brush, roller and spray. If the application area is horizontal, the product can be applied with a roller or brush by pouring it on the surface.

Fine cracks, joints, corners and edges should be supported with geofelt after the first coat application. In terrace roofs and similar applications, weber geofelt application should be made to the entire surface after the first floor application. The application should be at least 2 layers, waiting at least 12 hours between coats (waiting time should not exceed 36 hours). YAPSEAL© MEGALASTIC PU 350 can also be used in the topcoat for permanent color, decorative appearance and high strength.

The moisture content of the application surfaces of YAPSEAL © MEGALASTIC PU 350 should not be more than 5%. For an ideal application, the surface compressive strength should be at least 25 Mpa and the adhesion strength should be 1.5 Mpa. The thickness of the application of a single layer (dry film) should not exceed 0.6 mm. The product should be kept away from sources of fire and should not be approached with cigarettes. During the application, gloves and glasses should be used, and eye and skin contact should be avoided. In case of contact of the material with eyes and skin, it should be rinsed with plenty of water and a doctor should be consulted immediately. There must be sufficient air circulation in the application area. The cured material must be protected with a drainage board prior to filling. When additional (optional) thermal insulation is required, an insulation board (XPS, EPS, PUR, etc.) should be placed on YAPSEAL © MEGALASTIC PU 350, and then a drainage board should be placed.YAPSEAL © MEGALASTIC PU 350 is slippery when wet. In order to create a non-slip surface, the material should be sprinkled on the surface with suitable aggregate while it is still wet. Low temperatures prolong the curing time, high temperatures accelerate curing. High humidity can affect the surface appearance.

1.50 – 2.00 kg/m² (for 2 or 3 coat application)

It is offered for sale in Metal Bucket of 25 kg

It should be stored in a clean, dry and moisture-free environment between +50C and +350C, away from direct sunlight. It must be protected against water, frost and severe weather It should be stored in stacks of no more than 3 layers. Provided that the specified storage conditions are complied with, the storage life is a maximum of 12 months from the date of manufacture.

First of all, all necessary Occupational Health and Safety measures should be taken in the areas where the application will be made and the procedures should be carried out by people who have technical knowledge and equipment. Occupational Health and Safety instructions must be followed in all works In accordance with the Occupational Health and Safety instructions, it is
obligatory to use all occupational safety equipment such as work clothes, protective gloves/goggles/masks during the application. For more information, the Material Safety Data Sheet (MSDS) should be reviewed. In addition, the application of the product; It should be done by people with sufficient technical knowledge, equipment and experience. The responsibility in this regard belongs exclusively to the user.

All information provided in this information sheet is advisory. All products should be used by people with technical knowledge and equipment, taking into account the recommendations. Any consequences that may occur during or after all use YAPKİM Yapı Kimya San. A.S. cannot be held responsible. This document is valid until a new one is issued and invalidates the old editions. YAPKİM Yapı Kimya San. A.S may make changes in the nature of the product. It is imperative to take safety precautions during product use. These measures are not just those listed above, and it is the sole responsibility of the user to take all security measures