87044
Descrição
Mapa Mental por Poppy Venables, atualizado more than 1 year ago
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Criado por Poppy Venables
mais de 11 anos atrás
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Adhesives
- Contact adhesive
- Sticks Metals and polymers; unlike
materials: e.g. plastic to wood and
fabric to most materials
- Advantages
- Able to bond unlike materials
- Bond forms very quickly
so less need for clamping
- Ideal for glueing
large sheet material
- Sold in metal tubes for
easy application
- Able to bond unlike materials
- Disadvantages
- Must be applied to both surfaces and
some time must be allowed before they
can be pushed together.
- Relatively expensive
- Solvent-based so contains
harmful volatile compounds
- Must be applied to both surfaces and
some time must be allowed before they
can be pushed together.
- Sticks Metals and polymers; unlike
materials: e.g. plastic to wood and
fabric to most materials
- Acrylic Cement
- Sticks Acrylic
- Advantages
- Rapid bonding of acrylics
- Rapid bonding of acrylics
- Disadvantages
- Can be difficult to apply and give a neat join
- Relatively expensive
- Solvent based so contains
harmful volatile compounds
- Can be difficult to apply and give a neat join
- Sticks Acrylic
- Polystyrene cement
- Sticks High impact Polystyrene (H.I.Ps)
(not expanded polystyrene)
- Advantages
- Strong bond - melts surface of pieces to be
joined and cause them to weld together.
- Able to use brush to apply (water-like consistency)
and absorbed into joint by capillary action
- Strong bond - melts surface of pieces to be
joined and cause them to weld together.
- Disadvantages
- Relatively expensive
- Solvent based so
contains harmful volatile
compounds
- Relatively expensive
- Sticks High impact Polystyrene (H.I.Ps)
(not expanded polystyrene)
- Epoxy resin
- Sticks most materials including expanded polystyrene
- Advantages
- High performance adhesive giving
high-strength bonds
- Chemical reaction hardens immediatley
- Versatile - can be made flexible or
rigid, transparent or opaque/
coloured, rapid or slow setting.
- Excellent heat and chemical resistance
- High performance adhesive giving
high-strength bonds
- Disadvantages
- Reaches full strength only after a few days
- Expensive
- Often requires manual mixing of resin and
hardener, which can be messy
- Reaches full strength only after a few days
- Sticks most materials including expanded polystyrene
- Polyvinyl acetate (PVA)
- Advantages
- Gives a strong joint
- Relatively inexpensive
- Gives a strong joint
- Disadvantages
- Surfaces need to be securely clamped together
for long period in order for PVA to harden
- Generally not waterproof (athough some brands are)
- Surfaces need to be securely clamped together
for long period in order for PVA to harden
- Sticks Wood and porous materials
- Advantages
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