WHY CHOOSE ALUMINIUM?

Aluminium is the world's most abundant metal. Its light weight, strength, corrosion resistance and formability make it the most specified alloy where durability and low maintenance are required.

It is one third the weight of steel, yet when alloyed, its strength to weight ratio is superior to that of steel.

Its surface strength has self regenerating properties. A natural oxide film provides resistance to corrosion which when damaged will reform itself to continue the anti-corrosion protection.

It is safe to handle, non-toxic, and is infinitely recyclable. Its production from bauxite ore uses electricity which is mainly produced from renewable hydrelectrical power.

It causes no adverse run-off to ground water. It is non-magnetic, and its lack of an electrostatic charge means that it does not attract dirt.

The appearance of aluminium can be enhanced to create a visual impact that is as varied as the Architect's imagination and will ensure that the desired long term aesthetic appeal of the project is maintained.

Powder coating is also undertaken on your own pre-manufactured products.

POWDER COATING
GLOSS LEVELS

The following relate to the levels of gloss finish available:

0-39%
40-75%
76-100%

MATT
SEMI GLOSS (SATIN)
GLOSS

The Production Process
1. Aluminium is cut and formed for the application.
2. Then pre-treatment process begins.
3. The aluminium is then electrostatic powder coated.
4. Then oven baked to flash the powder.
5. Goods cooled down, then packed for destination.
Please note only T.G.I.C. and lead free powders are used by JWD.

THE CHOICE OF FINISH

Architects frequently specify aluminium where durability, low maintenance, colour and finish are important elements within the design concept.

Choosing the finish is critical to determining the final appearance and life expectancy of the project. High quality aluminium powder coating finishes have proven benefits; they increase durability and reduce maintenance.

Polyester powder costings offers the specifier a far wider range of colours and gloss levels than other finishing processes and has the advantage of the colour remaining totally consistent, regardless of the underlying metal substrate. Limited forming can be achieved after coating and on-site remedial work is easy to touch-up.

The advanced technology of the process ensures that a single coat will provide a durable finish which is chemically bonded to the metal surface. The correct pre-treatment of the metal surface, and the controlled curing cycle are vital in ensuring a durable and colour stable coating process. This is where JWD's six stage, timed and temperature controlled Chromating pre-treatment process and automated infra red oven curing lines ensure consistent quality and colour stability.

Chromate adhesion enhances the metal's corrosion resistance and adhesive qualities of the powder particles thereby ensuring product durability and quality of finish.

Powder coating has the environmentally friendly advantage of the finish being applied without the use of solvents, plus any oversprayed powder is collected and recycled.

Salt Spray ISO7253 Pass - no corrosion creep more than 2 mm from scribe
Cycle humidity

DIN50017

1000 Hours

 Pass - no blistering or loss of gloss
Chemical resistance   Generally good resistance to acids, alkalis and oils at normal temperatures
Accelerated weathering test

ASTM G53-93 313mm lanp, 55C

4hrs. UV/a hrs. Condensation cycle

50% gloss retention after 200hrs
CHEMICAL & DURABILITY TESTS