AXIAL FAN MOULD; AIR CONDITIONER MOULD;
WATER FILTER MOULD; AUTO MIRROR MOULD; SAFTY HELMET MOULD
About Plastic Raw Materials
Resin Identification Code
In order to help you understand the differences
between various plastic raw materials,
we have attached a short description of the polymers
which are used in the plastic packaging industry.
Please note: this information is only for your
general knowledge.
PETE or PET: Polyethylene Terephthalate
PET is commonly used for carbonated beverage bottles.
provides very good alcohol and essential oil
barrier properties, generally good chemical resistance
(although acetones and ketones will attack PET) and a
high degree of impact resistance and tensile strength.
PET is used for: polyester fibres, thermoformed sheet,
strapping, soft drink bottles.
Max. hot fill: 60 C.
Density (gr/cc): 1.36
HDPE: High-Density Polyethylene
HDPE is the most widely used resin for plastic
bottles. Compatible with a wide range of products
including acids and caustics (but is not compatible
with solvents), provides good protection at below
freezing temartures, supplied in FDA approved
food grade.
Max. hot fill 90 C.
Density (gr/cc): higher than 0.94.
PVC: Polyvinyl Chloride
PVC is naturally clear, has extremely good resistance
to oils but it is vulnerable to solvents, has very
low oxygen transmission, provides an excellent
barrier to most gases and its drop impact resistance
is also very good.
Max. hot fill: 60 C.
Density (gr/cc): 1.35
LDPE: Low-Density Polyethylene
LDPE is similar to HDPE in composition.
It is less rigid and generally less chemically
resistant than HDPE, but is more translucent.
LDPE is used primarily for squeeze applications:
Dispensing bottles, wash bottles, tubing,
and various molded laboratory equipment
Max. hot fill: 65 C.
Density (gr/cc): 0.915 - 0925.
PP: Polypropylene
Polypropylene is used primarily for jars and
closures and provides a rigid package with
excellent moisture barrier. One major advantage
of polypropylene is its stability at high temperatures,
up to 200° F. Polypropylene is autoclavable and offers
the potential for steam sterilization. PP has excellent
chemical resistance, but provides poor impact resistance
in cold temperatures.
Max. hot fill: 110 C.
Density (gr/cc): 0.91
PS: Polystyrene
Styrene offers excellent clarity and stiffness at an
economical cost. Styrene does not provide good barrier
properties, and exhibits poor impact resistance.
Max. hot fill: 65 C.
Density (gr/cc): 0.95
OTHER
Other plastics, including acrylic, polycarbonate,
polylactic acid , nylon and fiberglass.
AXIAL FAN MOULD; AIR CONDITIONER MOULD; WATER FILTER MOULD;
AUTO MIRROR MOULD; SAFTY HELMET MOULD
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