Byk Pu Seal 600

Polyurethane Based Expansion And Joint Sealant

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BYK PU SEAL 600 is a single component polyurethane sealant which cures with moisture on the air

Places of Usage

• Concrete joints
• Structural joints
• Crack repairs,
• Wood and pvc window installation

Advantages

• UV resistace
• Adheres to almost all kinds of surfaces, with or without primer.
• High chemical resistance, suitable for sealing joints in chemically treated water and swimming pools.
• Resistant to aging and outdoor weather conditions.
• It is permanently elastic and can be painted.
• It is water impermeable and resistant to bacteria and mould.
• It maintains its elasticity even at -40°C.
• It has high temperature resistance, allowing application even in environments reaching >60°C

Technical Specifications
Color
 White,Gray -
Density
 1,40 g/cm3 ASTM D1475 / DIN 53217 / ISO 2811, @ 20oC
Drying Time
 2 hour ASTM D 2196-86 / EN ISO 3219 (+25°C)
Curing Rate
 3-4 mm/day -
Usage Temperature
 15°C /+30°C -
Service Temperature
 - 40°C /+80°C ISO 7389
Shore A
 ~25 ASTM C661
Elongation
 >900 % (Dumble Test) ASTM D412
Adhesion to Concrete
 ≥2 N/mm² EN-ISO-8339

NOTE: The technical specifications listed above are based on tests conducted at 23°C and 50% relative humidity. Values may vary under different temperature and humidity conditions.

Consumption
WIDTH DEPTH (mm)
3mm
6mm
8mm
10mm
3 66.6 33.3 25 20
6 33.6 16.6 12.5 10
8 25 12.5 9.3 7.5
10 20 10 7.5 6

Application Procedures

Surface Preparation

The application area must be smooth, clean and free of all moving parts. Residues such as dirt, oil and paint should be cleaned from the surface with appropriate methods. Surfaces with high oil absorption should be completely renewed and repaired with BYK EP MORTAR 9301-2K Epoxy based repair mortar. If the application surface is concrete, class should be minimum C25, relative ambient humidity should be below 85%, and ambient temperature should be between +15°C and +30°C. When the temperature of very porous substrates, such as cracked or poorly compacted concrete, rises, the pore bonding surfaces must be filled properly to prevent air bubbles that may form in the mastic that has not yet been cured. Direct application on unstable substrates is not recommended. In such cases, the bottom layer should be primed before application with a primer material selected according to the surface type and moisture condition, in order to ensure the formation of a durable and permanent bottom layer that strengthens the concrete.

Application

Apply materials such as open-cell polyurethane or closed-cell polyethylene support wicks. Although both types of support wicks are suitable, when using closed-cell polyethylene, care should be taken not to puncture the outer coating of the wick as bubbles may form if the temperature rises. The wick, which functions as a fixed support in case the mastic cannot be corrected with a tool, is important in terms of the correct ratio of width to depth in practice. Slide the sealant into the application gun, cut off the very end of the sealant packaging, and insert the gun with the nozzle cut to get the correct drop size. Squeeze the mastic into the joint, making sure there is no air left. In wide joints, more than one pass of gun application is required to ensure full contact of the mastic with the edges and bottom. After application, smooth it immediately with a spatula. The ratio of width to depth should be 2:1, provided that the minimum depth is 10 mm. The product should not be exposed to chemicals before its final cure is completed.

Matters to be taken into consideration

• The materials to be used must be brought to the application site 1-2 days in advance and must adapt to the
environmental conditions.
• Rain, dust, wind, animals and insects should be prevented from entering the building while the coating is fresh.
• Consumptions are given for ideal conditions where the ambient and surface temperature is assumed to be 20°C. Actual
consumptions may vary depending on the surface structure. It should not be forgotten that damaged surfaces will
increase consumption.

Packaging
600 ml sausage (Aluminum Foil)
Shelf Life
It can be stored in its original unopened buckets in dry conditions at temperatures between 5°C and 25°C for a minimum of 12 months. Containers of unmixed components must be kept hermetically sealed until the next use.
Safety Precautions
Flammable and combustible products should be kept away during application. No smoking. Take care to ensure continuous ventilation of the application area. Protective equipment such as goggles and gloves should be used during application. In case of eye contact, rinse thoroughly with plenty of water. Ask for Material Safety Data Sheet for detailed information. Keep out of the reach of children. The product must be used by professional users, taking into account the data in the technical information section.
Responsibility
The data contained in this white paper is based on our scientific and practical knowledge. DEMIRKOL TAAHHUT INSAAT SANAYI VE DIS TICARET LTD. STI. is only responsible for the quality of the product. DEMIRKOL TAAHHUT INSAAT SANAYI VE DIS TICARET LTD. STI. cannot be held responsible for the consequences of using the product outside the written recommendations on how and where to use the product and/or misuse. The user is responsible for the correct application of our product. Our company is only responsible for the quality of the product. This catalog supersedes the information contained in the previous catalog. Our company rezerves the right to make changes in all kinds of information and content details in this catalog. It is essential to check that the information in the catalog is up-to-date and valid. All rights reserved.

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