6.2 Flashcards
why are surface finishes used
prevent materials absorbign moisture
prevent against decay, corrosion and wear
easier maintenecne
enhance aesthetics
how si timber finished
using glass paper or wire wool to create a smooth surfece
Examples of wood finishes (6)
Acyclic and polyuretha varnish
Water based paints
Wax
Danish oil
Teak oil
Preservatives
What does varnish do to timber (5)
Makes it
hard
tough
heat proof
waterproof
allows grain to be seen in finish
What does water based paints do to timbers (6)
Protection
Colour
Tougher
Harder
Resitantto moister
Aesethetic
What does wax do to timber (4)
High gloss finish
Hardness
Toughness
Clear finish
What does danish oil do to timber
Maintains natural appeatnce, by soaking into the wood and enhanicng grain
is dnaish oil a hard wearing finish
No
WHat does reguar application fo danish oil allow
A matt water resitant finish
WHat does teak oil do to timber
Imporvees weather and fungal resistance
Aesthetics
What is teak oil used on
Natrually oily woods
What does pressure treating do to woods
Weather resiatnce
Restistance to fungal shit
How is metal prepped before finsihing
Degreased and cleaned
What is eelcrtoplating
adding a thin layer user electricity
What is galavnising
coating steel in zinc