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Stove-lacquering
With ALUCOBOND® stove-lacquering, customers can choose
from a wide range of standard and metallic colours or select any type of
special individual colour. |
High quality lacquering systems with optimum resistance to weather and industrial pollution are used exclusively.
These properties are achieved by using fluorinated bonding agents; for standard finishes PVF2-based top lacquers are used.
Special surface effects are achieved on request by using duroplastic fluorpolymers which are virtually as weather resistant as PVF2 lacquering systems.
ALUCOBOND® is available in many different surface finishes:
- both sides mill finish
- one or both sides stove-lacquered
- both sides colourless anodised
Lacquered Surfaces:
Variety of Colours
From a wide range of standard colours, customers can select both metallic and
solid colours. Custom colours are available on request.
The gloss for solid and for metallic colours is in the range of 30-40% according
to Gardner Scale, which is most suitable for architectural applications. For
special effect colours, the gloss is in the range of 70-80% according to Gardner
Scale. Due to their high gloss, panels coated in special effect colours need
special care in the design and during fabrication and installation.
Lacquering
ALUCOBOND® surfaces are coated using exclusively
high-quality lacquer systems which have an optimum resistance against the effects
of strong solar radiation, weather and industrial pollution. These properties
are achieved by using UV resistant bonding agents. For standard finishes, Fluorpolymer
(eg. PVDF or PVF2) top coats are used. The coating systems combine good formability
and excellent surface durability.
Alcan Singen GmbH apply all lacquer-based surface finishes in their own plant
to the aluminium coil, prior to lamination into a composite panel. They use
a continuous coil coating line which is based on the latest technology. The
multiple layers of the coating are individually baked at temperatures of between
200-260oC.
Quality
The fully automatic coil coating process is computer controlled throughout all
the stages. The quality of the coating is tested according to the standards
established by the E.C.C.A. (European Coil Coating Association) of which Alcan
Singen GmbH is a member.
The long-term durability of coatings can be compared by measuring:
- Colour change
- Gloss retention and
- Chalking
Anodising:
ALUCOBOND® is available in anodised finish on both sides in accordance with
DIN 17611 standards applicable for anodised finishes (E6/EV1), corresponding
to BS 1615: 1972 AA20. The minimum thickness of the anodic layer is 20 microns.
Note: Anodised panels have clamp marks 25mm from each end.
Protective Peel-off-foil:
Unless specified otherwise, the finished surface of ALUCOBOND® is factory
protected with a self-adhesive peel-off-foil.
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