1.5 Wood finishing Flashcards
What are the 3 degradation types of wood
Wet rot, Dry rot, insect attack
What is the main differences between dry rot and wet rot of wood
Wet:
Soft, swollen and fibrous crumbling wood
Fungus that grows on timber with a high moisture content e.g. 50%
Dry:
Dry, cracked and powdery crumbling wood
Specific type of fungus that grows on timber with a moisture content of 20-30%
What is Paints properties & indoor/outdoor, Appearance inc opacity & finishes, and Application
Makes surfaces tougher and more resistant to moisture
Indoor/Outdoor
Applies a colour(Gloss, satin, matt and metallic)
Apply with a brush, roller or spray
What are the 2 stages in insect attack
Tunnels (The hatched larvae eats tunnels into the wood)
Flight holes (The beetle forms and eats out of the wood via a flight hole)
What are the 2 steps to surface preperation
Sand the wood with progressively finer glasspaper
Wipe the surface with a cloth to remove any dust before applying a finish
What is Washes properties & indoor/outdoor, Appearance inc opacity & finishes, and Application
No protective properties
Helps colour the wood and allow the grain to show, can add a vintage look to the wood
Apply with a wet sponge
What is stains properties & indoor/outdoor, Appearance inc opacity & finishes, and Application
No specific protective properties
Can contain a varnish to seal
Helps colour and enhance the grain while making a wood look more expensive
Apply with a brush, roller or spray
What is Danish oils properties & indoor/outdoor, Appearance inc opacity & finishes, and Application
Could build up a water resistant finish
Indoor
Enhances the grain
Apply with a lint-free cloth, rub in the direction of the grain. Leave the oil for 5 mins then rub away excess
What is waxs properties & indoor/outdoor, Appearance inc opacity & finishes, and Application
Increases hardness and toughness
Indoor
Can provide a high gloss finish
Allows the grain to be seen
Apply with a brush then once dry buff with a clean lint-free cloth
What is teak oils properties & indoor/outdoor, Appearance inc opacity & finishes, and Application
Improve weather resistance and fungal/insect attack resistance
Outdoor
Enhances the grain
Apply with a lint-free cloth, rub in the direction of the grain. Leave the oil for 5 mins then rub away excess
What is PU or Acrylic varnishs properties & indoor/outdoor, Appearance inc opacity & finishes, and Application
Provides a hard, tough, heat proof and waterproof finish
Gloss, satin and matt
Allows the grain of the wood to be seen
Available in clear or colours
Apply a thin coat with a brush in the direction of the grain
What is yacht varnishes properties & indoor/outdoor, Appearance inc opacity & finishes, and Application
Outdoor
Increased toughness, hardness and weather resistance
High gloss or satin
Apply with a brush or sprayed directly
What is pressure treatings properties & indoor/outdoor, Appearance inc opacity & finishes, and Application
Outdoor
Protects the wood for up to 50yrs from rot, insect and fungal attack and weathering.
Green tint
Wood is placed in a vessel containing a solution of preserving salts
What are the 3 wood finishes - colour
Paint, washes, stains
What are the 3 wood finishes - waxes and oils
Danish oil, teak oil, Wax
