Adhesives Flashcards
1
Q
Factors to consider when choosing an adhesive
A
- Flexible or rigid.
- For use with specific materials.
- Water resistant or waterproof.
- Two part (requiring a hardener).
- How it is applied.
- Time taken to cure.
- Strength required.
- Area to be covered/amount needed.
- Does it need to set in the absence of air?
2
Q
Wood adhesives: PVA
(Strengths and weaknesses, curing times)
A
- Strong wood glue
- Not waterproof
- 2-3 hours
3
Q
Wood adhesives: Cascamite
(Strengths and weaknesses, curing times)
A
- Comes in powder form and is mixed with water to make a thin paste
- Stronger than PVA, water and heat resistant, durable and non staining
- Air not needed
- 4-6 hours
4
Q
Wood adhesives: Aerolite
(Strengths and weaknesses, curing times)
A
- Powder + water makes a paste which is added to hardener
- Stronger than PVA, waterproof
- Air not needed
- 4-6 hours
5
Q
Wood adhesives: Contact (impact) Adhesive
(Strengths and weaknesses, curing times)
A
- Flexible over large area
- Must be used in well ventilated area
6
Q
Wood adhesives: Epoxy resin
(Strengths and weaknesses, curing times)
A
- Adhesive + hardener in equal quantities
- Can be used with glass, metal,
wood, ceramic and some plastics - Water resistant
- 6-8 hours
7
Q
Acrylic adhesive: Acrylic cement
(Strengths and weaknesses, curing times)
A
- Used only for acrylic
8
Q
Wood adhesive: hot melt glue gun
(Strengths and weaknesses, curing times)
A
- Messy, inaccurate
- Short cure time
