Surface, Treatment and Finishes Flashcards
………………………..is needed to run the factory for continues production
Highly specialised equipment
Before applying a surface finish to timber it is important to get the surface…………………
Smooth and flat
Any imperfection on the surface such as scratches or dents are often made………………….by by the application of a finish
More visible
How do you get a smooth flat surface own a piece of timber
Smoothing plane is the most efficient. On curved surfaces, glass paper is best
You must always sand in the………direction of the grain
Same
What are some things to consider when applying a finish
The effect to ant to achieve
The environment in which it will be used in
What sort of timber it will be used on
What finish would you use for a natural timber or plywood
attractive outer layer
Use a finish which allows you to see the grain pattern of the timber
What are timber stains
Stains are applied to enhance or change the colour of the natural timber
Some bright colours can be used (children toys)
It is important to apply the stain……….
Evenly
The stain itself does not give much………….to the timber and is mainly used to change the colour
Protection
What give timber protection
An additional finish such as wax or a varnish
What are preservatives
Products that repel water and moisture and in some cases resist insect attack
Give a preservative
Traditionally a brown product called Crestoate was used on sheds and fences
Commercially, preservatives can be added to timber based products through the process known as…………..
Tantalising
This is where the timber is placed in a sealed chamber where the preservative is pumped under pressure, forcing the liquid preservatives to penetrate the outer cells of the timber
Varnish can achieve a similar look to the polish but give better……………..on the surface of the woods
Protection
