A-Patina Grau is our Premium Collection product that gives metal a “galvanized” effect.
Industrial, unfinished, tough, resilient, durable: these are just a few of the adjectives that have been used to describe galvanization, which has a long history in the architectural world, dating back to 1830 and the construction of the London Docks.
Today galvanization is widely used on facades, especially in the Nordic countries, and it has been adopted by famous starchitects, in primis Frank O. Gehry, the extremely famous creator of works like the Guggenheim Museum in Bilbao.
Thanks to A-Patina Grau, it is possible to achieve the same chromatic effect as galvanization with a pre-painting treatment that gives the base product a functional and highly prized look, while at the same time representing a valid alternative to heavy galvanized steel plates.
| TEST | VALUE | REFERENCE STANDARD |
| Thickness | 45 ± 7 µm** | EN 13523-1 (ECCA T1) |
| Gloss | 2 - 7 | EN 13523-2 (ECCA T2) |
| Pencil hardness | F - H | EN 13523-4 (ECCA T4) |
| Adhesion on impact | 100% | EN 13523-5 (ECCA T5) |
| Adhesion on forming | 100% | EN 13523-6 (ECCA T6) |
| T.B. Adherence at 25° C | 0T - 1T* | EN 13523-7 (ECCA T7) |
| T.B. Cracking at 25° C | 0T - 2,5T* | EN 13523-7 (ECCA T7) |
| MEK | > 100 | EN 13523-11 (ECCA T11) |
A-Patina Grau is the outcome of a special treatment involving two degreasing cycles as well as passivation (chrome free), and it is highly appreciated for its characteristic aesthetic finish.
The product is recommended for all indoor and outdoor use, in particular for prestige roofing.
| MEASURE | VALUE |
| Coil width | min. 500 mm · max. 1.320 mm |
| Coil thickness | min. 0,3 mm · max. 1,5 mm |
| External coil diameter | min. 700 mm · max. 1.300 mm |
| Internal coil diameter | 508 mm; 610 mm |
| Strip width | min. 20 mm |
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