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Rynite® 935 BK505

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Polymer Name: Polyethylene Terephthalate (PET), Thermoplastic Polyester
Processing Methods: Injection Molding
Fillers Included: Glass Fiber, Mica
Flexural Modulus: 9300.0 MPa
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Identification & Functionality

Rynite® 935 BK505 Features & Benefits

Industry Needs
  • Excellent dimensional stability and low warpage
  • Outstanding adhesive compatibility to secure component on the windshield for the life of the vehicle
  • Superior flow for easy processing of design features, such as snap fits and over-molded inserts
  • Improved laser-marking properties
  • Resistance to hydrolysis and low fogging

Solutions

DuPontTM Rynite® PET resins offer clear advantages for vehicle manufacturers. Our materials help high-resolution camera windshield brackets stand up to the harshest environments.
We work with manufacturers around the world on their ADAS platforms to deliver solutions that enhance high-resolution camera solutions, with a specific focus on:

  • Dimensional stability
  • Adhesive compatibility
  • Hydrolysis resistance
  • Spiral flow
  • Laser marking
  • Interior emissions and fogging
  • Snap fit
Product Highlights

35% mica / glass reinforced modified PET - low warpage, good electrical properties, high stiffness, high heat resistance.

Applications & Uses

Use Recommendations

Exterior body parts, structural housings and frames, irrigation components, electrical components.

Properties

Color
Flame Rating
Part Marking Code
>PET-(MD+GF)35<
Mechanical Properties
ValueUnitsTest Method / Conditions
Tensile Modulus10200MPaISO 527-1/-2
Flexural Modulus9300MPaISO 178
Flexural Strength132MPaISO 178
Stress (at Break)82MPaISO 527-1/-2
Strain (at Break)2%ISO 527-1/-2
Charpy Impact Strength (at 23°C)25kJ/m²ISO 179/1eU
Poisson's Ratio0.34--
Charpy Impact Strength (at -40°C)21.5kJ/m²ISO 179/1eU
Notched Charpy Impact Strength (at 23°C)5.5kJ/m²ISO 179/1eA
Notched Charpy Impact Strength (at -30°C)4kJ/m²ISO 179/1eA
Notched Charpy Impact Strength (at -40°C)4kJ/m²ISO 179/1eA
Typical Properties
ValueUnitsTest Method / Conditions
Resin IdentificationPET-(MD+GF)35-ISO 1043
Thermal Properties
ValueUnitsTest Method / Conditions
Melt Temperature (at 10°C/min)252°CISO 11357-1/-3
Temperature of Deflection Under Load (1.8 Mpa)200°CISO 75-1/-2
Temperature of Deflection Under Load (0.45 Mpa)240°CISO 75-1/-2
Relative Thermal Index (Electrical, 0.75mm)140°CUL 746B
Relative Thermal Index (Electrical, 1.5mm)140°CUL 746B
Relative Thermal Index (Electrical, 3mm)140°CUL 746B
Relative Thermal Index (Impact, 0.75mm)140°CUL 746B
Relative Thermal Index (Impact, 1.5mm)140°CUL 746B
Relative Thermal Index (Impact, 3mm)140°CUL 746B
Relative Thermal Index (Strength, 0.75mm)140°CUL 746B
Relative Thermal Index (Strength, 1.5mm)140°CUL 746B
Relative Thermal Index (Strength, 3mm)140°CUL 746B
Electrical Properties
ValueUnitsTest Method / Conditions
Relative Permittivity (at 1MHz)4-IEC 62631-2-1
Dissipation Factor (at 1 MHz)150E-4IEC 62631-2-1
Electric Strength (Short Time, 23°C, 2mm)25kV/mmIEC 60243-1
Flammability
ValueUnitsTest Method / Conditions
FMVSS ClassB-ISO 3795 (FMVSS 302)
Burning Behavior (at 1.5mm Nominal Thickness)UL94 HBclassIEC 60695-11-10
Burning Behavior (at 0.75mm Thickness)UL94 HBclassIEC 60695-11-10
Glow Wire Flammability Index (at 0.75mm)775°CIEC 60695-2-12
Glow Wire Flammability Index (at 1.5mm)775°CIEC 60695-2-12
Glow Wire Flammability Index (at 3mm)825°CIEC 60695-2-12
Glow Wire Ignition Temperature (at 0.75mm)800°CIEC 60695-2-13
Glow Wire Ignition Temperature (at 1.5mm)800°CIEC 60695-2-13
Glow Wire Ignition Temperature (at 3mm)850°CIEC 60695-2-13
Burning Rate (at 1mm Thickness)max. 80mm/minISO 3795 (FMVSS 302)
Other Properties
ValueUnitsTest Method / Conditions
Density1580kg/m³ISO 1183
Processing Information (Injection Molding)
ValueUnitsTest Method / Conditions
Drying Recommendedyes--
Drying Temperature120°C-
Drying Time (Dehumidified Dryer)4 - 6h-
Hold Pressure Rangemin. 80MPa-
Hold Pressure Time4s/mm-
Back PressureAs low as possibleMPa-
Ejection Temperature170°C-
Processing Moisture Content ¹max. 0.02%-
Melt Temperature (Optimum)285°C-
Melt Temperature (Minimum)280°C-
Melt Temperature (Maximum)300°C-
Maximum Screw Tangential Speed0.2m/s-
Mold Temperature (Optimum)110°C-
Mold Temperature (Minimum)100°C-
Mold Temperature (Maximum) ²120°C-
VDA Properties
ValueUnitsTest Method / Conditions
Fogging (G-Value, Condensate)0.1mgISO 6452
Rheological Properties
ValueUnitsTest Method / Conditions
Mold Shrinkage (Parallel)0.2%ISO 294-4, 2577
Mold Shrinkage (Normal)0.7%ISO 294-4, 2577
Note
  • [1]: At levels above 0.02%, strength and toughness will decrease, even though parts may not exhibit surface defects.
  • [2]: (6mm - 1mm thickness)
Solutions for High-resolution Camera Bracket
  Dimensional
Stability
Adhesive
Compatibility
Hydrolysis
Resistance
High
Flow
VOC –
Fogging
Snap
Fit
Rynite® 935 +++ ++++ + +++ ++ ++

Best: ++++

Regulatory & Compliance

Technical Details & Test Data

Dynamic Shear Modulus vs Temperature

DuPont Rynite 935 BK505 Dynamic Shear Modulus vs Temperature

Packaging & Availability

Regional Availability