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Rynite® RE5329 BK503

Technical Datasheet | Supplied by Celanese
Rynite® RE5329 BK503 by DuPont is a modified polyethylene terephthalate resin reinforced with 36% glass and glass flake. Exhibits an excellent balance of strength & stiffness, dimensional stability, creep resistance and heat resistance. Possesses excellent flow properties, excellent inherent electrical properties at an elevated temperature, low warpage and epoxy adhesion. Offers high surface gloss and high burst strength. Provides balanced thermal-, mechanical- and chemical properties. Rynite® RE5329 BK503 can be processed over a broad temperature range by injection molding. Used in automotive ignition applications and electrical- & electronic appliances where it can replace metals & thermosets, as well as other thermoplastic polymers. It helps in the manufacture of stronger and reliable electrical devices, photovoltaic panels, switches and other critical energy components.
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Product Type
Polyester > PET
CAS Number
25038-59-9
Physical Form
Pellets

Rynite® RE5329 BK503 Properties

Physical Properties

Value & Unit
Test Condition
Test Method
Apparent Density
1630 kg/m³
(23°C, 4 mm) 
ISO 1183
Linear Mold Shrinkage, Flow
0.4 %
(4 mm, 23°C) 
ISO 294-4, 2577
Linear Mold Shrinkage, Transverse
0.8 %
(4 mm, 23°C) 
ISO 294-4, 2577

Rynite® RE5329 BK503 Processing Guidelines

Injection Properties

Value & Unit
Test Condition
Test Method
Vent Depth
< 0.025 mm
Dew Point of Air
< 18 °C
Clamp Pressure
3 - 5 tons/in2
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