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Elantas Bectron® PU 4526

Elantas Bectron® PU 4526

  • Product code: PU 4526
  • Manufacturer: Elantas
  • Package size:
  • Shelf Life: 6 months

 

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Elantas Bectron® PU 4526 is a two-component liquid polyurethane system. When cured with the Hardener Bectron® PH 4912, it forms a medium-hard molding compound that meets the UL 94 V0 standard for flame resistance.

Highlight Features

  • Resilient and Elastic: Provides a resilient, elastic potting compound suitable for mechanically sensitive electronic components and assembled PCBs.
  • Flame Retardant: Complies with UL 94 V0 flame resistance standards.
  • Curing Options: Cures at room temperature.
  • Tough and Elastic: Results in a tough, elastic cured compound.
  • Processing Viscosity: Offers favorable viscosity for easy processing.
  • ROHS Compliant: Meets ROHS directive requirements.

Applications of Elantas Bectron® PU 4526

Elantas Bectron® PU 4526 is ideal for potting and sealing various electronic components, including assembled PCBs. Its flame-retardant properties ensure compliance with UL 94 V0 standards. The compound’s physical characteristics and high thermal resistance make it suitable for electronics exposed to shock and vibration, such as impact drills, automotive electronics, and sensor technology. This product also satisfies ROHS directive requirements.

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Properties of materials as supplied

Property

PU 4526

PH 4912

Units

Colour

Black

Brown transparent

 

Viscosity 25°C DIN 53019

4000 ± 1000

100 ± 30

mPa.s

Spec. gravity 20°C DIN EN ISO 2811-1

1.60± 0.05

1.22± 0.03

g/cm3

Shelf Life

6

6

months

Properties of mixture

Mixing Ratio

Bectron® PU 4526 : Hardener Bectron® PH 4912 Bectron® PU 4526 : Hardener Bectron® PH 4912

 

weight parts volume @20°C

 

6:1

4.58 :1

 

Parts Parts

Viscosity DIN 53019

25°C

1900 ± 500

mPa.s

Process time

25°C

25

Min

Thermal Properties of cured compound

Property

Condition

Value

Units

Flammability

 

UL 94 V0

 

Glass transition temperature

 

+7

°C

Linear coefficient of expansion

below tg

120 x 10-6

K-1

Thermal Range

 

-40 to +130

°C

Thermal Conductivity DIN 52613

 

0.45

W/m.K

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