Chemical Pre-treatment

Coils and sheets are degreased and chromium-free chemically converted on both sides before coating.

Top Side

Product top side is prepainted with a polyamide paint. On customer request other paint systems are available: polyester, polyurethane, PVdF (polyvinylidenfluoride)
A wide range of colours is available, on specific requests new colours can be designed.

Pastel Colours

(Base coat + Transparent)

Typical thickness: 24 [µm]
Typical gloss (ECCA T2):

Gloss Type	Low Gloss	Semi Gloss	High Gloss
Gloss Range [gloss units]	10 ÷ 20	21 ÷ 60	61 ÷ 79
Tolerance	± 4	± 5	± 7

Metallic Colours

(Metallic base + Transparent)

Typical gauge: 24 [µm]
Typical gloss (ECCA T2):

Gloss Type	Low Gloss	Semi Gloss	High Gloss
Gloss Range [gloss units]	10 ÷ 20	21 ÷ 60	61 ÷ 79
Tolerance	± 4	± 5	± 7

Reverse Side

Reverse side is protected by a backing coat polyester (semitransparent) suitable for adhesive bonding with most available glues and foams.

typical thickness: 4 [µm]
brilliance level:

• 30 [gloss units] (coupled with top sides < 40 units)
• 80 [gloss units] (coupled with top sides ≥ 40 units)

Colour Tolerances

Measures on colour (DE values, CIELAB system (ECCA T3 and ISO 7724:1984)) is referred to Novelis master colour
This method can’t be used for transparent and metallic colours, special effects and for embossed surfaces.

Coating Hardness [ECCA T 4]

Hardness: ≥ pencil H

Protective film

The protective film (transparent or Black & White) is applied to the coated aluminium coils and sheets used in the production of façades.
The protective film must be removed at the latest 6 (six) months after delivery and is for external application (UV resistant).

• chemical composition: polyethylene
• typical thickness: 50 / 80 [µm]
• adhesive: acrylic / rubber glue