Concept Process

Considerations of Materials

HDPE -

High-density polyethylene (HDPE) or polyethylene high-density (PEHD) is a polyethylene thermoplastic made from petroleum. Known for its large strength to density ratio, HDPE is commonly used in the production of plastic bottles, corrosion-resistant piping, geomembranes, and plastic lumber.

It takes the equivalent of 1.75 kilograms of petroleum (in energy and raw materials) to make one kilogram of HDPE. HDPE is commonly recycled, and has the number "2" as its recycling symbol.

In 2007, the global HDPE market reached a volume of more than 30 million tons.[1]

(Source)


Jarrah (Eucalyptus marginata) -

Eucalyptus marginata is one of the most common species of Eucalyptus tree in the southwest of Western Australia. The tree and the wood are usually referred to by the Aboriginal name Jarrah. Because of the similar appearance of worked jarrah timber to the Honduras mahogany tree, jarrah was once called Swan River mahogany after the river system that runs through Perth.

(Source)

Was going to use Jarrah, but the issue was that my design required sheets of wood, whereas Jarrah only came in long panels. Considerations of glueing, creating a solid chair and others were looked at, however decided it would take away from the design element and aesthetic of my chair, as well as creating a costly and long process, that wouldn't be beneficial to the environment.

Marine Plywood

Sources 1, 2, 3, 4


Stainless Steel

Sources 1, 2, 3

Stainless steel is also known by many other names like CRES or corrosion-resistant steel, inox steel etc. It is a type of metal alloy. Its components are iron, chromium, carbon, nickel, molybdenum and small quantities of other metals. These components are present in varied proportion in different varieties of steel. In stainless steel, the chromium content should not be less than 11 percent.

Stainless Steel Properties

Stainless steel products have many significant advantages over other metals:

• Resists corrosion
• Retains strength even at high temperatures
• Hygienic due to the smooth and minimally porous surface (useful for hospitals and food processing plants)
• Bright aesthetic appearance
• Easily machined, welded, formed and fabricated
• Usually non-magnetic - useful for aerospace applications
• Excellent fatigue and impact resistance - useful in automotive body building
• High resistance to shock at low and high temperatures
• Yields durable long-life products