PU and silicone systems for sealing, foaming, casting, and design
Rampf Group, Inc., the North American subsidiary of the international Rampf Group, will present its portfolio of foam systems for the automotive, household appliance, electrical/electronic, packaging, energy technology, recreation equipment, and medical industries at Foam Expo North America 2018 (stand 427).
Amongst others, the company will highlight its Raku PUR 32-3264 and Raku PUR 32-3278 anti-fogging PU foam gaskets that are said to offer high mechanical strength, low water absorption, good bonding to metal, and high temperature resistance. The gaskets are used for sound abatement and ensure the sealing of complex, three-dimensional component contours in closed environments. The products have been tested to VDA 270/275/278 and meet all physical-mechanical and emissions requirements, including DBL (5452.13), BMW (TL 8350 151.6), FCA (MS AY 560), GM (3628M), and VW (TL 848). The high viscosity ensures these foams can be applied on vertical surfaces and form seals of consistent size. The good tear resistance of the gaskets is more than able to resist the shear forces that can occur during installation, said Rampf.
Furthermore, the company will present its Raku PUR and Raku SIL portfolios of automated gasketing for safe and quiet household appliances. The products play an important role in the long-term functionality of these appliances by providing reliable and efficient protection from excessive noise, moisture, chemicals, and various environmental influences. The product ranges include systems with flame-retardant properties to UL 94 (HF-1, HF-2, HBF) and enhanced UV stability. These technologies also offer IP (In-gress Protection) ratings to safeguard equipment from incidental splashing to high-pressure spray and submersion in water and chemicals as well as other fluids. The sound suppression and vibration-damping properties the sealing systems contribute to the stable and quiet operation of household appliances. The foams cover a temperature range from –60 °C to 250 °C and are used, amongst others, in components for refrigerators, freezers, dryers, dishwashers, washing machines, as well as sealing sinks and hot water heaters.
In addition, Rampf will showcase its Raku PUR 34 rigid foams with a low density and closed-cell structure. They are processed using high or low pressure with suitable moulds. The construction materials are particularly suited for lightweight mouldings which have to comply with certain static requirements. Fields of application include appliance and machine parts as well as components for vehicles and sports equipment. Advantages include short reaction and demoulding times to increase productivity, high mechanical strength for reliable performance, good vibration damping, noise reduction, and thermal insulation, reduced material cost to improve profitability, and lower part weight for improved performance and cheaper packaging options.