Galvanizing Services

What we can offer you: •Collection and delivery service* •Direct to site deliveries •24-hour turnaround service on request •Unrivalled Customer Service •Spin Galvanizing •Galvanize continuous lengths of marine chain •Shot Blasting/Powder Coating* •Double Dip: up to 29m •Vertical Dip: up to 3.2m •ISO 9001 quality approved •Technical & Design Advice Reasons for Hot Dip Galvanizing 1 - Long life Galvanizing provides an easy to clean surface which can give a maintenance-free life of over 50 years. (This is dependent on the environment it is being used in). When maintenance eventually becomes necessary, it is straightforward: no complex preparation treatments are necessary. 2 - Competitive first cost For many applications the cost of galvanizing is lower than that of applying alternative coatings. The reason is simple: alternatives - particularly painting - are very labour intensive compared with galvanizing which is a highly mechanized, closely controlled factory process. 3 - Lowest lifetime cost Low initial cost and long life make galvanising the most versatile and economic way of protecting steel for long periods. There are bonuses from no maintenance or extended maintenance intervals: fewer problems of access in remote areas, difficult terrain or when buildings are closely packed together; also when there are safety restrictions e.g. electricity pylons. 4 - Reliability The process is relatively simple, straightforward and closely controlled. The thicknesses (weights) of coatings formed are regular, predictable and simply specified. Galvanising is one of the few coatings which is completely defined by a British Standard (BS EN ISO 1461). 5 - Speed of application A full protection coating can be applied in hours; a complicated paint system can require a week. 6 - Coating toughness Galvanizing is unique: the hot dip process produces a coating which is bonded metallurgically to the steel. No other coating process has this feature, and as a result galvanized steel has by far the greatest resistance to mechanical damage during handling, storage, transport and construction - an important factor where steelwork is to be shipped around the world. 7 - Complete coverage Because it is formed by dipping steel in molten zinc, all parts of the surface of the steel are coated - inside, outside, awkward corners, and narrow gaps which would be impossible to protect in any other way. The coating actually tends to build up at vital corners and edges - rather than thinning out as do brushed, sprayed and other dipped coatings. 8 - Three-way protection Galvanized coatings protect steel in three ways: •Firstly, the coating weathers at a very slow rate giving a long and predictable life. •Secondly, the coating corrodes preferentially to provide cathodic (sacrificial) protection to any small areas of steel exposed through drilling, cutting or accidental damage; scratches are sealed by weathering products from the zinc. •Thirdly, if the damaged area is larger, the sacrificial protection prevents the sideways creep of rust which can undermine paint coatings. 9 - Ease of inspection Galvanized steel simplifies inspection of the protective finish. The nature of the process is such that if the coating looks continuous and sound, it is! Thicknesses - simply specified through BS EN ISO 1461 - can be easily checked with an electronic probe. 10 - Faster construction Galvanized steel is ready for use. No further site surface preparation, painting, touch up or inspection is necessary. Once constructed the galvanized steel is ready for use: and cladding can begin immediately, thus accelerating the construction time.

For more information on Galvanizing Services talk to Wedge Group Galvanizing