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Rampf Develops RAKU-PUR® 32-3250-36 Gasket for Adhesion to All Kinds of Materials

The two-component system based on polyurethane has been cured and is ready for use after just 150 seconds. Photo: Fotolia

It's as easy as making popcorn -- simply apply and wait for it to expand. Rampf Giessharze, a manufacturer of polyurethane and epoxy resin systems and silicones, has developed the fast-curing soft integral foam RAKU-PUR Speed for adhesion to all kinds of materials in assembly processes in complex production lines. Once the foam has been applied, the component is suitable for immediate further processing without the need to invest in curing equipment. Costly storage in curing ovens or storage systems is now a thing of the past.

In certain industrial applications that form part of complex production lines, components need to be used straight after sealing without long curing sections. The RAKU-PUR® 32-3250-36 soft integral foam from Rampf Giessharze ensures eight hours' production without any interruption. The special thing about this material is that curing is no longer necessary. A short conveyor distance of two to three meters is sufficient to apply the foam gasket and ensure the component is ready for use. Tack-free components are ready for packaging in less than 150 seconds.

No curing section and quickly ready for use

No additional curing measures such as an oven or inductive/infrared radiation are needed. The ambient temperature is sufficient to cure the sealing material applied "in situ", making the component ready for further processing. Unlike with conventional systems, users do not need to invest in additional equipment or pay the extra energy costs associated with curing.

The fast-curing soft integral foam RAKU-PUR 32-3250-36 was developed by RAMPF Giessharze specifically for adhesion to all kinds of materials - from polypropylene to painted steel. Photo: RAMPF Giessharze

Thanks to these features, this new foam gasket is ideal for use in all technologies that require short cycle times. Other material features include low water absorption and high mechanical strength for adhesion to various materials, from polypropylene to painted steel, in assembly operations. The material offers long-term temperature resistance in a range from -30°C to +90°C and can be exposed to temperatures ranging from -40°C to +140°C for short periods. In addition to applying RAKU-PUR 32-3250-36 directly to the component, application of molded foam (with the foam produced in molds as a structural component) and other methods are also supported.

Benefits of RAKU-PUR 32-3250-36:

• Minimal curing section and curing at ambient temperature ? no additional energy costs for curing
• Immediate handling of the component (component is at ambient temperature)
• Material can be used in various technologies
• Suitable for IP 66, 67 and 69 (IP following application in conjunction with component)
• Adhesion to all kinds of materials, from polypropylene to painted steel (following prior plasma treatment)
• Flexible system adjustment, i.e. a system with different Shore hardnesses is possible
• Slow start-up time of 40-55 seconds but tack-free, in less than 150 seconds

About Rampf

Rampf Giessharze GmbH & Co. KG, the nucleus of the Rampf Group, is headquartered in Grafenberg, Germany. The company has specialized in the development, production and sale of resin systems made of polyurethane, epoxy and silicon since 1980. Its product port-folio includes liquid and thixotropic sealing systems, electro and engineering casting resins, edge and filter casting resins and two-component adhesives. Rampf Giessharze offers solutions for all key industries around the globe.

Source: Rampf

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