Regufoam® – Mixed-Cell Polyurethane Elastomers

Material Composition

Regufoam® elastomers consist of a mixed-cell polyurethane foam. Similar to the various Regupol® types, Regufoam® isolation materials have been precisely designed for different load ranges. Various standard thicknesses of 12 mm, 25 mm, 37 mm and 50 mm cover a wide spectrum of support frequencies up to 8 Hz.

The successful use of polyurethanes in vibration isolation over the course of many years offers expert consultants a conventional solution and a valuable alternative to Regupol® elastomers.

Moreover, the BSW test lab offers the option of developing project- and application-specific elastomers with special properties.

Regufoam® elastomers and their specific load ranges can be distinguished from one another using colour codes (beige, purple, turquoise, brick red, orange and brown).

Possible Uses

Due to their different dynamic rigidities and admissible load ranges, building and machine foundations can be placed elastically on strips or delicate point supports. Due to the low support frequencies, this type of support is technically efficient, but more difficult to plan and execute.

The majority of isolation jobs are performed on full-surface Regufoam® elastomers with lower rigidity, because this is more feasible and less error-prone.

The technical details, clearly arranged and determined as well as tested by the Technical University Dresden, among other institutions, provide a full overview of the load range of the Regufoam® elastomers and their non-linear material properties. They allow expert consultants to select and properly size the elastomer type that suits the situation at hand and meets its respective requirements.

Regufoam® elastomers are moisture- and rot-resistant. They are also ozone-resistant, but the colours may fade over time due to UV radiation. Because of their mixed-cell structure, especially types with lower dynamic rigidity can absorb water. These must be protected against water uptake.

Effectiveness of the Regufoam^® Elastomers

Regufoam® elastomers can be specifically set for support frequencies between 20 Hz and 8 Hz in a broad load range from 0.01 N/mm² to 0.40 N/mm². Expert consultants in particular benefit from this large degree of flexibility.

The use of polyurethanes in vibration isolation over the course of many years offers expert consultants a conventional solution and valuable alternative. The admissible continuous load limits must be kept, as overload on the elastomers may lead to creep as well as rigidification of the material.

Regufoam® elastomers are produced and shipped in rolls. They can be cut to size with a standard utility knife right at the construction site. The professional company at the construction site is thus ensured that the installation is going to be simple, quick and, above all, cost-efficient.