wood finishes Flashcards
1
Q
why finish wood
A
- prevent moisture absorption
- prevent decay
- enhance appearance
2
Q
natural wood degradation
A
- wet rot
- dry rot
- insect attack
3
Q
before applying wood finish
A
- smooth surface through planing or sanding in direction of grain
- all dust removed
4
Q
varnish
A
- matt, satin, gloss, coloured, clear
- applied with brush
- lightly sanded between layers
- hard, tough, heat proof and water proof finish
- clear allows grain to be seen
5
Q
water based paints
A
- matt, satin, gloss, metallic
- applied with roller, brush, or spray
- surface needs to be primed
- undercoat added before first layer
- indoor and outdoor use
- for softwoods
- tougher and harder
6
Q
stains
A
- different colours
- grease free surface before application
- applied with brush, roller, or spray
- colours wood to make it aesthetically pleasing
7
Q
colour wash
A
- different colours
- applied with wet sponge
- makes it aesthetically pleasing
8
Q
wax
A
- clear or coloured
- indoor products
- applied with brush or cloth and buffed once dry
- increased surface hardness and toughness
9
Q
yacht varnish
A
- high gloss and satin finish
- applied with brush or sprayed directly
- for woods outside all year round
- increases weather resistance
10
Q
danish oil
A
- clear and colour tints
- applied with lint free cloth and rubbed into surface of wood
- leave to absorb and then rub away excess
- lightly sand down between coats
- regular application builds up matt water resistance
11
Q
teak oil
A
- clear tint
- applied with lint free cloth and rubbed into surface of wood
- leave to absorb and then rub away excess
- used for outdoor wood products
12
Q
pressure treatment
A
- wood placed in pressure vessel containing a solution of copper sulphate and other salts
- vacuum and pressure are controlled to force the preservative deep into the wood
- then steam dried
- protects for up to 50 years from rot, insect/fungal attack and weathering
- good for decking and harbour construction
