Page 72 - Georgia Markham

70. Additional Work Designs
Swatch Book

3.2.1 Materials Surface Finish ABS - Polymer Georgia Markham
Desciption How it is Manufactured ABS
Acrylonitrile Butadiene Styrene (ABS) is a hard, glossy and tough ABS is polymerized through the process Advantages
• Strong
material. it is a thermoplastic and an amorphous polymer. of emulsion. The polymerizing, styrene • Stiff
ABS is
Thermoplastic refers to the polymers heating capabilities. They and acrylonitrile change in the presence • High and low temperature recyclable
can be heated to melting point then cooled and reheated of polybutadiene. This allows chemical
again. ABS turns into liquid when heated allowing it to be chains to form that attract to each other • Very sturdy
• Higher melting point
injection moulded easily and recycled. Examples of where we and bind together making ABS a stronger Disadvantages
can see ABS being used are, electronic housings, pipe fittings, material. When ABS is heated it liquefies • Weatherability
Computer components and toys. I chose ABS to put in my and is poured into injection moulds, after • Oil is used (damaging to
catalogue because in today’s society it is so often used. The it dry’s it is then taken out from the mould environment)
mixer I am doing for my redesign project is also made of ABS, in a solid form. • Hazardous when burned
so I wanted to learn about it. Plasticextrusiontech. (2020) www.plasticextrusiontech
Creativemechanisms. (2006) https://www.creativemechanisms.com/ [28/11/2020]. .net [28/11/2020]. • Higher price than PS and PE
Process Equipment Needed Experience of Replicating ABS
1. 1. • Grey primer When replicating ABS, I was unsure of how to get
• Red spray paint the shiny finish to the surface, I tried a number of
Form a swatch that will show • Lacquer spay different materials to try and achieve this look,
how light impacts the surface. these include, wood varnish, bees wax and
GM Designs Gather equipment. 2. enamel paint. After trying out these finishes I
found lacquer spray worked the best.
Apply 3 coats of grey primer.
Between each coat use wet Out of 5
and dry sandpaper, to achieve
Book of Swatches 2. 3. a smooth surface. Sample Finished Swatch
Prototyping and Surfaces Apply 2 layers of red spray
paint, leaving 24 hours between
Year 3 PDI coat to let dry. 4.
By Apply 2 layers of lacquer spay,
Georgia Markham leaving 5 hours to dry between
coats.
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3.
3.2.1 Materials Surface Finish Concrete - Composite Georgia Markham 3.2.1 Materials Surface Finish MDF Board - Composite Georgia Markham
Desciption How it is Manufactured Concrete Desciption How it is Manufactured MDF Board
Concrete is a well-known composite material made up of Concrete is made up of portland Advantages MDF (Medium-density fibreboard) is a very commonly used • Recycled shavings/chips collected. Advantages
• Ingredients easy to get
cement, aggregates and water. It is a strong and fire resist cement, fine aggregates, coarse • Easy to mould into shape Concrete is engineered wood composite. It is composed of small wood • They are sent through a magnetic • Cheap MFD is not
• Smooth
material used primary in construction. Examples of this would aggregates and water. Other • High compressive strength recyclable fibers that are pressed together, this means there are no wood detector to remove any metal. • Not knots or grains recyclable
include walls, roads and foundation for buildings, as it is one materials can be used in this mix • Easily pumped or sprayed grains and no voids. It can be pressed into large sheets of any • The chips are sent through a
of the most economical materials available. I chose this such as fibres, polymers and • Durability size needed. Examples of where you might see MDF include, presteaming bin where it is steamed • Dense
• Consistent texture
material because it is a very common material that is pigments each adding unique Disadvantages flooring, furniture, shelving and doors. I chose MDF as it is a and heated. Water is then removed. Disadvantages
becoming increasingly more modern in today’s society, we properties. All these Ingredients are • Low tensile strength material that I encounter a lot in the workshop. It is a material • Resin is added to keep it together.
can see examples of this in home décor and modern housing. measured before adding water and • Can crack due to drying that I expect to be dealing with a lot more in the future and I • It is pushed through scalping rollers • Not water resistant
Thomasnet. (2020). Avaliable: https://www.thomasnet.com/ [26 November, 2020]. left to be mixed, it is then spread and and shrinkage wanted to learn how to make it. I wanted to take this opportunity and pressed, before trimmed to size. • Weaker than wood
left to set for 24-48 hours. to learn more about it and why it is so often used in products. • The MDF is sanded with abrasives. • Can crack/ spilt
Concretenetwork. (2020) https://www. • Concrete is less ductile Addicted2decorating. (2007) https://www.addicted2decorating.com/ [6/11/2020]. Madehow.(2020) http://www.madehow.com/ • Doesn’t take nails/ screws
concretenetwork.com/ [26 November, 2020]. • Can contains soluble salts [6/11/2020]. • Heavy
Process Equipment Needed Experience of Replicating Concrete
1. 1. Process Equipment Needed Experience of Replicating MDF
1. • Grey Primer Replicating concrete was a long process and took 1. • Grey primer I tried out a lot of different colours to match the colour of
Form a swatch that will show • Wet and dry Sandpaper me several trials to get it right. From trying out Form a swatch that will show • White spray paint MDF. I then experimented with ways of applying paint
how light impacts the surface. • Black paint different colour paints and different quantities of how light impacts the surface. • Sponge without making it look brushed. The best ways that worked
Gather equipment. • Light and dark grey paint filler I was able to find the right combination that Gather equipment. • Fine brush for me was using a sponge and a fine brush to dab on the
2. • Silver worked for me. 2. • White, light brown paint. On MDF there are hair like fibers, I decided to use
Apply 3 coats of grey primer, • Sponge Apply 3 coats of grey primer. and dark brown paint real hair to give it this effect, I felt this worked well. Overall,
in between each coat use wet • Large paint brush Out of 5 Between each coat use wet • Stands of hair I feel my MDF swatch turned out well.
• Fine paint brush
and dry sandpaper, to achieve • All purpose filler and dry sandpaper, to achieve Out of 5
a smooth surface. a smooth surface.
3. Finished Swatch 3.
Sample Finished Swatch
2. With a large paint brush, 2. Apply 2 layers of white spray Sample
spread filler onto the swatch. paint.
4. 4.
Paint the piece light brown and
Using the fine paint brush and leave to dry for 30 minutes. With
sponge add dark grey to the
whole piece. A fine brush and sponge dab light
5. 5. brown all around with the swatch.
Allow to dry for 30 minutes before After the paint has dried,
adding more filler mixed with a
3. lighter grey paint with a sponge. 3. dab the swatch with the darker
This adds depth to the piece. brown colour to give it depth.
6. 6.
With the fine brush start to Paint a few strands of hair dark
incorporate small amounts of brown and cut them into very
different colours such as, silver small pieces. Place them
and black. around the swatch.