Why Aluminium?
Aluminium is an extraordinary material! It has some very special and unique properties and is without doubt the ONLY material with which to build successful, financially viable commercial type boats that are expected to work continuously in harsh conditions often operated by inexperienced drivers, without failing and most importantly, safely. And is the only material we will work with.
There are many “grades’’ of aluminium each one manufactured for a specific application. This is achieved by adding very small amounts of various elements, such as for instance copper which is used in the aircraft construction industry but is totally unsuitable for the construction of boats.
The aluminium Eraco uses is what is commonly known as “marine grade aluminium’’.
This aluminium which has been alloyed with magnesium provides the properties that enable the material to withstand the corrosive forces associated with salt water. All the welding ‘’filler’’ wire is also designed for marine use.
The main advantages of aluminium for the construction of boats are:
- Weight. Being a light material means smaller engines, less fuel, higher speed, less costs.
- Stronger. Being a ductile material, aluminium boats have hit rocks at very high speeds and were badly dented but survived because no hole was made in the hull
- Easily repaired. It is quick and easy to cut out a damaged section and re-weld, however very effective repairs can also be done where no welding facilities are available by the use of aluminium ‘’patches” which can be glued and pop riveted into place.
- Low maintenance. It is without doubt the boatbuilding material that by far requires less maintenance than any other material. A properly designed and built aluminium boat will easily last 50 years and more.
- Cost. Aluminium boats are not necessarily the cheapest to initially purchase, However if running costs are taken into consideration, as it obviously should, over a very short operational period the extra cost are recouped through lower fuel and maintenance costs.
- Environmental impact. Aluminium is a renewable and well recycled material. At the end of its life the aluminium will have a value, which more than likely will be worth more per kilo than it originally cost!



