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Pattex PU Foam 750 ml Code 1555588 German technology Made in Turkey
Pattex Universal PU Foam
One component PU foam for low temperature use, manual straw application
• Insulation of window and door frames
• Mounting of window- and door frames, window sills
• Filling of cavities
• Sealing of openings in roof constructions and insulation materials
• Creating soundproof screens
• Filling of cavities around pipes
• Insulating of wall panels, roof tiles
• CFC free
One-component, moisture cure semi-rigid polyurethane foam with excellent open-closed cells balance and high mechanical strength. Product can be applied up to -10°C temperature. The foam is self-expanding and during the curing process expands about two times. It has excellent adhesion on most building materials including wood, concrete, stone, metal etc. Curing time strongly depends on the conditions. Full mechanical strength is achieved in 24 hours. Yield of the cured foam largely depends on of working conditions – temperature, air humidity, available space for expanding, etc. At minus temperatures the expansion of foam is lower and curing time longer.
Substrates must be stable, clean and free of substances likely to impair adhesion. To ensure full and even curing of the foam, moisten substrates (brickwork, concrete, limestone) with water spray. Mask off adjacent areas. The surfaces can be moist, but not frosted or iced.
• Working temperature: from -10°C to +35°C.
• Can temperature: from +5°C to +30°C.
• Preferably the can should be stored at room temperature for at least 12 hours prior to use.
• Shake the can vigorously before use (15 - 20 times). Screw the foaming straw tightly onto the valve. The outflow rate of the foam can be adjusted by pressing and releasing the trigger.
• Dispense the foam sparingly; fill the seal for about 50% as the foam will expand.
• The can might be used in all positions, with the precondition that the foaming is started and ended in upside down position.
• It is vital to repeat shaking regularly during the application, especially when foaming with the can, not in upside down position.
• Remove fresh spots of foam with PU foam cleaner or acetone. Hardened foam can only be removed mechanically.
• Limitations to joint maximal width exist in regard of ambient temperature and humidity levels.
• In dry conditions (during winter time, in rooms with central heating etc.), in order to get best foam structure and foam properties it is recommendable to fill gaps and joints in several layers by the application of smaller foam strings (up to 3 - 4 cm thickness) and slightly moisturizing between every layer.
• At very dry conditions, the foam may be brittle directly after the hardening. This brittleness is a temporary effect and disappears after a while or by warming up. Once the foam is flexible, it does not get brittle again even at cold temperatures.
• Single use should be expected.
ATTENTION! Cured PU foam must be protected from UV radiation by painting or applying a top layer of sealant, plaster, mortar, or other type of covering. Adhesion of the product is weak on polyethylene, Teflon® and on some other plastic surfaces.