Notes on some of the different types of Adhesives

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Adhesives are means of securing two surfaces together. They may be sold in solid, liquid, powder, or film form. Common types of adhesives include:

Animal or Fish Glues

-primarily for indoor use where temperature and humidity do not vary greatly

-may be weakened when exposed to heat or moisture

-made from boiling down bones

Casein Glue

-made from milk protein and is sold as a powder that is mixed with water just before being used

-good adhesion to porous materials

-moisture resistance is somewhat superior to animal glue

White Glue

-polyvinyl glue

-sets quickly and does not stain; slightly resilient

Contact Cement

-forms a bond on contact; does not require clamps

-generally used to secure large surface materials such paneling and countertops

-surfaces must be carefully pre-fit

Silicones

-withstand the highest temperature of all synthetic adhesives

-high moisture resistance

-used as binders for glass fibers used as insulation

Epoxy Resin

-extremely strong

-may be use to secure porous as well as non-porous materials such as metal and concrete; may dissolve some plastics

-unlike other adhesives, epoxy glues will set at low temperatures and under wet conditions

Resorcinol Resin

-strong, waterproof, and durable for outdoor use; flammable

-dark color may show through paint

-used on wood and other porous materials

-used to make exterior plywood

Urea-formaldehyde

-work best on porous materials; often used in wood-working applications

Putty

-a mixture of Linseed oil and finely ground calcium carbonate

-used to glaze wooden sash and fill small cracks and crevices in wood surfaces before painting

-dries and becomes brittle with age

-has no appreciable elongation value

Elastomeric-type compounds

-capable of elongations of 100% of more

-types include silicone mastics, butyl, neoprene, and hypalon rubbers, vinyl chloride polymers, poly sulfide polymers, butadiene-styrene co-polymers

Mastic-Type Compounds

-oxidizing type

1. composed of drying and non-drying oils,