| The Benefits
| Galvanizing is a term
often used to describe zinc coatings in general. But, different
types of zinc coatings vary in coating thickness and other characteristics
and it is important to understand that all zinc coatings are
not the same.
|Hot dip galvanizing
has many benefits for the specifier:
Galvanized coatings protect steel in three ways:
- The zinc weathers at a very slow rate giving a long and
- The coating corrodes preferentially to provide sacrificial
protection to small areas of steel exposed through drilling,
cutting or accidental damage.
- If the damaged area is larger, sacrificial protection
prevents sideways creep which can undermine coatings.
Galvanizing is unique. The process produces a coating which
is bonded metallurgically to the steel.
All parts of the surface of the steelwork are coated- external,
internal, awkward corners and areas with narrow gaps.
Specified to a single standard
BS EN ISO 1461.
|Speed of application
Can be applied in minutes
No site surface preparation is necessary
|Lowest lifetime cost
Competitive initial cost and long life make hot dip galvanizing
the most versatile, economic method of protecting steelwork.
Often exceeding 40 years
|Ease of Inspection
The nature of the process is such that if the coating looks
continuous and sound, it is so.
For many applications the cost is lower than alternative coatings.