Treatments and finishes Flashcards
1
Q
Plastic dip coating - how: 4
A
- heat up metal in the forge, using tongs
- dip the hot metal into the liquidiser (currently blowing air through the) plastic powder
- check it’s evenly coated
- leave to cool in a vice
2
Q
Plastic dip coating - why
A
- aesthetic
- comfortable handles
- corosion resistant
- heat resistant
Trowel handle
3
Q
Paint/ laquer - how: 4
A
- sand p80, p120, raise grain damp paper towel, p120, p240
- dust
- apply a primer
- paint in thin layers, each layer MUST dry before the next sand with 240 between layers
4
Q
Temperate heat treatment metals: 3 processes
A
- ANNEALING softens metal; easier to form
- HARDENING once heated, rapidly cooled so the metal hardens
- TEMPERING after hardening, heated to differing temps to reduce brittleness
4
Q
Paint/laquer - why:
A
- cheap
- easy to apply
- stain, imprint, and scrub resistant
- protective layer
- cleanable
- CoLoUrFuL
5
Q
Preparing metal pour finir: 4
A
- crossfile
- drawfile
- emery cloth
- wirewool
6
Q
Metal finishes: 5
A
- spray paint
- plastic dip coating
- oil based paint
- hammerite
- galvanise (zinc dip coating)
7
Q
Why use varnish (4):
A
- more durable than wax
- waterproof
- looks glossy
- you can see the grain
8
Q
Why use wax (4):
A
- quicker because it’s applied with a cloth instead of a brush
- more viscous so no runs
- feels smoother than varnish
- less drying time
9
Q
Sanding - which way
A
Direction of grain
10
Q
Oil how 3
A
Apply with cloth
Make sure it’s not greasy
rub evenly
