General type of resin and

components blended to produce it

Flexibility

Sulphide-

stain resistance

Typical uses

Comments

Oleo-resinous

Poor

Poor

Acid fruits

General purpose, relatively low cost

Sulphur-resistant oleo-resinous

(added zinc oxide)

Good

Good

Vegetables, soups, (can end,

topcoat over epoxy-phenolic)

Not for use with acid products:

Phenolic (phenol or substituted phenol

with formaldehyde)

Very good

Very good

Meat, fish, vegetables, soups

Good at relatively low cost but film

thickness restricted by flexibility

Epoxy-phenolic (epoxy resins with

phenolic resins)

Poor

Poor

Meat, fish, vegetables, soups,

beer and beverages (first coat)

W ide range of properties may be

obtained by modifications

Epoxy-phenolic with zinc oxide (zinc

oxide added)

Good

Good

Vegetables, soups (especially

can ends)

Not used with acid products:

Aluminized epoxy-phenolic (metallic

aluminium powder added)

Good

Very good

Meat products

Clean but rather dull appearance

Epoxy anhydride

Good

Good

Vegetables

Normally pigmented with titanium

dioxide

Epoxy acrylate

Good

Poor

Vegetables (roller coated for can bodies and ends) beer &

beverage (spray application)

Supplied as water based systems

Vinyl, solution (vinyl acetate co-

polymers)

Excellent

Not

applicable

Spray on can bodies, roller

coating on ends, as topcoat for beer and beverages

Free from flavour taints; sensitive to

soldering heat and not usually suitable for direct application to tinplate

Vinyl, organosol or plastisol, (high

molecular weight vinyl resins suspended in a non-solvent)

Good

Not

applicable

Beer and beverage topcoat on

ends, bottle closures, drawn cans for sweets, tobacco

As for vinyl solutions but giving a

thicker, tougher layer

Acrylic (acrylic resin, usually

pigmented white)

Very good

on some ranges

Very good

when pigmented

Vegetable, soups, prepared

foods containing sulphide stainers

Attractive clean appearance of

opened cans

Polybutadiene (hydrocarbon resins)

Moderate

– poor

Very good if

zinc oxide is added

Beer and beverages first coat.

Vegetables and soups if with

ZnO

Cost and, hence, popularity depends

on country