| 摘要 |
Laminated mineral wool products which have to comply with high fire protection standards, such as building material belonging to Class A2 according to DIN 4102, require special production expenses if the laminating foil is to be reliably fastened with organic glue without downgrading its fire protection classification. By foaming the glue it is possible to manage with a fraction of the hitherto required quantity of glue without having to accept an essential lowering of glue performance. As a result, organic glue can be used without its fire load having to be neutralised by polluting flame-inhibiting agents. Furthermore the glue foam causes less problems during processing in production, reduces the charged quantity of glue, and reduces the required drying capacities. It is particularly suited for difficult applications such as laminating felt which is rolled for packaging or laminated panels comprising erect fibers. |
