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final design > 6.2 > Flashcards

6.2 Flashcards

1
Q

why are surface finishes used

A

prevent materials absorbign moisture
prevent against decay, corrosion and wear
easier maintenecne
enhance aesthetics

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2
Q

how si timber finished

A

using glass paper or wire wool to create a smooth surfece

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3
Q

Examples of wood finishes (6)

A

Acyclic and polyuretha varnish
Water based paints
Wax
Danish oil
Teak oil
Preservatives

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4
Q

What does varnish do to timber (5)

A

Makes it
hard
tough
heat proof
waterproof
allows grain to be seen in finish

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5
Q

What does water based paints do to timbers (6)

A

Protection
Colour
Tougher
Harder
Resitantto moister
Aesethetic

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6
Q

What does wax do to timber (4)

A

High gloss finish
Hardness
Toughness
Clear finish

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7
Q

What does danish oil do to timber

A

Maintains natural appeatnce, by soaking into the wood and enhanicng grain

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8
Q

is dnaish oil a hard wearing finish

A

No

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9
Q

WHat does reguar application fo danish oil allow

A

A matt water resitant finish

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10
Q

WHat does teak oil do to timber

A

Imporvees weather and fungal resistance
Aesthetics

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11
Q

What is teak oil used on

A

Natrually oily woods

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12
Q

What does pressure treating do to woods

A

Weather resiatnce
Restistance to fungal shit

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13
Q

How is metal prepped before finsihing

A

Degreased and cleaned

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14
Q

What is eelcrtoplating

A

adding a thin layer user electricity

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15
Q

What is galavnising

A

coating steel in zinc

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16
Q

Metal finishes (8)

A

Celluous and acrylic paint
Electroplating
Galvanising
Polymer dip coating
Metal dip coating
Powder coating
Sealents
Adonising

17
Q

What do paints on emtal do

A

Protect against corrosion
Textures and grpahics
Coloured finish

18
Q

What does electroplating and galvanising do to metals

A

Gives a more hardwear finish with a rptoectiev layer

19
Q

What does dip coating offer

A

Provides colour and a barrier against corrosion

20
Q

Where is polymer dip coating used

A

Hangers
Dish drainiers
Play frames

21
Q

Where is metal dip coating used

A

FOod cans
Beams
gates
Animal pens
Car bodies

22
Q

What does powder coating offer

A

corrosion reisatnce
aesthetics
hardwearin finsih

23
Q

Whrre is pwoder coating used

A

washing machien bodies
dishawshers

24
Q

how does pwoder coating work

A

Thermopolyer resin sprayed with an air gun
The product is baked and heated and hte pwoder metls

25
Q

What is the charge of the product in powder coating

A

Neagtive

26
Q

What do sealants do to mateals

A

Protect polished surfaces fromd ecay and tarnish

27
Q

Where are sealents used

A

Automative industry

28
Q

What does adonising do to metals

A

creates a natrual oxide layer
hardness
toughness
colour

29
Q

Where is adonising used

A

usually aluminium products
phone cases
harddrive covers

30
Q

what si adonising

A

coatign a material with a proetctive oxide layer

final design (43 decks)

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