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Double Dip:
The new galvanising process with outstanding long-term protection
Modern steel materials are constantly being further developed, with particular attention to corrosion protection. Hot dip galvanising has proved an excellent method since 1860. Since 1959 strip galvanised sheet has been produced continuously in Germany. Zinc-aluminium alloys have been used since the early 1980s, while in 1998 OBO supplied the first components for cable support systems made from Galfan.
A further development of this coating process was achieved two years ago by a subsidiary of the Thyssen Krupp Group. By contrast with the previous coating systems, in this “Double Dip” process the strip to be galvanised passes through two zinc baths in succession with different contents. The first bath contains pure zinc, the second a zinc-aluminium alloy.
Wherever extreme corrosion protection is needed, cable support systems with Double Dip coatings are an economical and ecologically convincing solution.
The main advantages:
- Ease of installation - no material distortion
- No risk of injury to the fitters and no more cable damage from burrs and zinc projections
- No after-treatment needed on site
- Greater corrosion protection - longer service life for the same price
- Very good adhesion of the zinc coating - no flaking under impact stress
- Lead-free zinc coating
OBO Bettermann will gradually provide part of its cable support system product group and the associated fixing materials with Double Dip galvanising.
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