Aluminium with PVDF coating

Aluminium with PVDF coating

PVDF is a fluoropolymer coating, normally applied as a primer and a topcoat with a combined thickness of about 25 to 35 microns. The film is dense and chemically stable, which is why it keeps colour and gloss under ultraviolet light, rain, pollution and temperature swings for decades. Service life of a PVDF facade often exceeds 30 years without repainting.

Advantages

• Best colour and gloss retention of the common coil-coating systems
• Excellent resistance to acid rain, salt air and city pollution
• Very low chalking, so the surface stays clean longer
• Elasticity good enough for folded cassettes and standing-seam roofing
• Smooth surface that sheds dirt in rain

Recommended applications

PVDF is the standard recommendation for coastal buildings in Batumi and for landmark projects in Tbilisi where the facade is expected to look the same after thirty years. It also suits roofing, high-rise cladding and projects with expensive access, where repainting would cost more than the original coating.

Metallic and special colours

Metallic and pearl PVDF shades are directional. Sheets must be installed with the same orientation, and cassettes should be cut from the same coil direction. Very dark colours heat up in sun and expand more, so joints must be sized accordingly.

Bending and fabrication

PVDF performs well on tight folds if the correct tooling and radii are used. Keep the protective film on until the end of installation and avoid dragging sheets over each other. The aluminium itself is non-combustible, but facades above 12 m in Georgia still go through Chapter 14 of the Building Safety Rules, and the insulation and fixings are reviewed as part of the assembly.

Pricing is on request. Send us your drawings and we will prepare a quotation.

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