Adhesives

•IDENTIFY DIFFERENT GLUES AND THEIR USES.

•RECOGNISE THE COSHH REQUIREMENTS

•IDENTIFY FOUR DIFFERENT TYPES OF GLUES.

Learning Outcomes

Precautions!!

COSHH requires that employers provide their employees with suitable

information, instruction and training about:
the nature of the substances they work with or are exposed to and the
risks created by exposure to those substances andthe precaution they
should take.
Employers should give sufficient information and instruction on the use
of any personal protective equipment and clothing,results of any
exposure monitoring or health surveillance and emergency
procedures.

BELOW I HAVE NAMED AND RESEARCHED SEVRAL

GLUES GIVING ALL THE INFORMATION RELATED
TO EACH ONE.

Animal Glue

Resistance to water:-

poor.

Liability to Stain:-

None.

Shelf life:- indefinite.
Setting time:- 12

Hours.

uses:- wood work,

repairs to woodwork &
veneers.

 Specific types include hide

glue, bone glue, fish glue,
rabbit skin glue. Animal
glue is still extensively
used in lutherie, pipe
organ building, and
antique restoration.

 Hide glue is used in

woodworking

 Hoof glue is also used

today in woodworking,
specifically cabinetry

 'Rabbit-skin glue is used in

the sizing or priming of oil
painters' canvases.

Casein Glue

Resistance to Water:-

Good.

Liability to Stain:-

particularly Oak.

Shelf Life:- Unlimited.
Setting Time:- 4-8

Hours depending on
temperature.

Uses:- general

woodworking where
staining is not a
disadvantage.

 CASEIN GLUE

Strong, water-resistant casein
glue, which produces joints as
strong as or stronger
than most of the common
species of wood, is made from
skim milk and common
chemicals. Casein glue joints
are water-resistant but not
waterproof. They will
withstand occasional soaking,
but if soaked and dried, they
will fail.

 Sources:

Encyclopedia of Chemical
Technology.

Poly Vinyl Acetate

Resistance to Water:-

Fair.

Liability to Stain:-

None.

Shelf Life:- About 1

Year if free from frost.

Setting Time:- 4-8

Hours.

Uses:- General

woodworking &
repairs, some plastics.

As an adhesive, It will

bond wood, paper,
leather, expanded
polystyrene, mortar,
brick and most other
porous materials to
themselves and to
each other. It makes a
reasonable border and
edge adhesive for
wallpaper.

Contact Adhesive (Activity)

Resistance to Water:-

Good.

Liability to Stain:-

None but is coloured.

Shelf Life:- About 1

Year.

Setting Time:-

Immediate.

Uses:- fixing sheet

plastics, repairing.

 Definition: A liquid

adhesive which dries to a
film that is tack-free to
other materials but not to
itself. The adhesive is
applied to both surfaces to
be joined and dried at least
partially. When pressed
together at light to
moderate pressure, a bond
of high initial strength
results.

Epoxy Resin (a 2 part Adhesive)

Resistance to Water:-

Excellent.

Liability to Stain:-

None.

Shelf Life:- Indefinite.


Setting Time:-

Depends on
Temperature.

Uses:- Metals, Glass,

China, Plastics.

epoxy floor coatings
sealers,
screeds,
mortars and
Adhesives.

Multiple Choice

What type of adhesive is pictured?

• PVA

• Epoxy

• Contact

• Casein

Multiple Choice

Which adhesive sets within a minute

• Casein

• Contact

• PVA

• Epoxy

You will research

4 other Glues used generally, Using the same

format by listing:-

Type,
Resistance to Water,
Liability to Stain,
Shelf Life, Setting Time.
You will present your findings On a separate

sheet.