Metal Finishing Processes Flashcards
1
Q
What is varnishing?
A
Clear protective layer
That enhances aesthetic
2
Q
What are sealants?
A
A polymer based coating
That protects from decay and tarnishing
3
Q
What is tarnishing?
A
Colour change in metal due to reaction with oxygen
4
Q
What are sealants used on?
A
Exhaust pipes
5
Q
What do sealants protect from, examples:
A
Weathering
Road salt
Insect attack
6
Q
What are preservatives?
A
Coating applied to dies and moulds
7
Q
What does preservatives protect from?
A
Prevents…
- atmospheric corrosion
- fingerprints
- condensation build up
8
Q
What are silicon sealants classed as?
A
Preservatives
