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Looking for a thermoplastic material that
is lightweight, stiff, and exhibits excellent temperature
performance and dimensional stability? PET plastic is
your custom plastic part or component solution. At Aline
Components plastic injection molding and manufacturing
company, we invest in the finest resins such as Rynite®
from preferred developers like DuPont™ to provide
customers with high-grade PET plastic products suitable
for diver applications.
A preferred mold maker located in Kulpsville,
PA, Aline Components serves customers based internationally,
nationally, and regionally in Pennsylvania, New Jersey,
New York, Delaware, and Maryland. We work directly with
resin suppliers to make sure that we custom mold and manufacture
your part using the best possible thermoplastic material
to meet exact specifications. Once we establish your end
product or system requirements, our designers can help
you ascertain whether PET plastic is the right choice.
What is PET Thermoplastic
Materials?
Polyethylene terephthalate, or PET, is a thermoplastic
resin, which derives from the polyester family and is
commonly used in food and beverage applications. Depending
on processing, PET can be semi-rigid or rigid, or amorphous
(transparent) or semi-crystalline (opaque and white).
PET can be synthesized through a transesterification reaction
between ethylene glycol and dimethyl terephthalate.
In some cases, PET plastic can be modified
for more desirable properties. For example, when glass
particles or fibers are integrated, PET becomes significantly
stiffer and more durable under various conditions. This
glass-filled thermoplastic, semi-crystalline formulation
is developed by DuPont™ and sold under the name Rynite®.
PET Plastic Properties
Although PET in its natural state is colorless and transparent,
it can be reinforced to meet customer’s color requirements.
In addition, certain reinforcements make PET plastic a
good gas and fair moisture barrier, as well as a good
barrier to alcohol and solvents. To alleviate potential
degradation, comonomers such as cyclohexane dimethanol
(CHDM) or isophthalic acid are used to lower PET’s
melting temperature. These are just a few examples of
how reinforcements can alter the physical properties of
PET.
Advantages of PET Plastic Include:
• Maximum dimensional stability
• Low water absorption
• High gloss finish
• Lightweight
• Semi-rigid to rigid
• Good temperature performance
• Easy plastic injection molding processibility
The strength and impact resistance of PET
plastic make it an ideal material for a variety of custom
part or component applications. When compared to PBT,
PET has a 20°C heat deflection advantage. When compared
to most other materials, PET is one of the few thermoplastics
whose polymer chains can be recovered for use as recycled
goods.
Overall, PET plastic unites the best properties
of reinforced polyethylene terephthalate with easier plastic
injection molding and manufacturing processibility to
produce high performance custom plastic parts or components.
Because of its low water absorption, products that are
fabricated out of PET plastic maintain their properties
and dimensional stability in challenging environments.
In demanding applications where stiffness, critical tight
tolerances, and superior exterior finish are a must, PET
plastic is a prime candidate, often replacing die-cast
metals and thermosets.
As a prime custom plastic injection molding
and manufacturing company, Aline Components utilizes
a one-step plastic injection molding process to deliver
parts or components to the highest standard at a quick
turnaround. The remarkable flow characteristics of Rynite®
PET allow Aline Components to fill complex, thin-walled
molds with less injection pressure than other thermoplastic
resins. Extensive experience as mold makers and plastic
part manufacturers combined with long-established relationships
with recognized resin suppliers contribute to the cost-effective
value of Aline Components.
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