7. Merchant navy: ship hulls (Hempel)

Metal brackets

These are steel shells (approx. 1 cm thick).

Surface treatments

Grease-free metal supports undergo four treatment stages:

• shot-blasting of sheet metal using metal abrasives;

• application of a weldable zinc dust-based primer on an automatic chain;

• assembly of painted panels on site ;

• shot blasting of weld seams and sweeping of other surfaces, or UHP blasting of metal surfaces with fresh water (UHP = Ultra High Pressure 2,000 bar).

Painting

After metal surface treatment :

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