Bondal®
Bondal® is a sandwich sheet, composed of two Galfan® galvanized steel plates (continuously hot dip galvanized steel with 5% aluminium) or aluminium plates (EN AW 5754 H12/H22) with a viscoelastic core layer. The composition of the viscoelastic layer gives Bondal® a very high loss factor, which is shown in the graph. The specific properties of the standard Bondal® types are shown below.
| Bondal® Type | N-Galfan® | H-Galfan® | Aluminium |
|---|---|---|---|
| Temperature range of application | -10°C-75°C | 50°C-130°C | -10°C-75°C |
| Distortion temperature | 200°C | 250°C | 200°C |
| Decomposition temperature | 230°C | 260°C | 230°C |
| Processing temperature | 15°C | 15°C | 15°C |
Applications of Bondal®
The product is mostly used as a low-noise (sheet) structure in machine building, yachtbuilding and shipbuilding, hoppers, partition walls, floors, footbridges, pipeline insulation and numerous other applications.
Using Bondal®
The sandwich sheets can be cut, drilled, punched or sawn like normal plates. Distorting (bending, angle folding, scoring) the material is no problem if the sheets can move independently from one another. Mechanical connections can be applied without advance measures. There are guidelines for welding.
Acoustic properties of Bondal®
Bondal® delivery range
| Bondal® H* | Plaatafmeting |
|---|---|
| 0,5 / 0,05/ 0,5 | 2000 x 1000 mm |
| Bondal® N* | Sheet size |
|---|---|
| 0,75 / 0,05 / 0,75 | 2000 x 1000 mm |
| 1,0 / 0,05 / 1,0 | 2000 x 1000 mm |
| Bondal® Aluminium* | Sheet size |
|---|---|
| 0,6 / 0,05 / 0,6 | 2000 x 1000 mm |
| 1,0 / 0,05 / 0,1 | 2000 x 1000 mm |
| 1,5 / 0,05 / 1,5 | 2000 x 1000 mm |
Alternative sizes are available on request.
Product specifications of Bondal®
This viscoelastic core layer contains no toxic components and decomposes at extreme heating into CO2 and H2O. Bondal® can be cleaned (if necessary) with Mek, ethyl acetate or Isobutanol. Bondal® waste can be disposed of as scrap (similar to varnished plate work).
Click here for product pictures