Bectron® PU 4526
Bectron® PU 4526 is a flame-retardant, two-part polyurethane compound used with hardener PH 4912. It meets UL 94 V0 standards and offers elastic, flame-resistant encapsulation for sensitive electronics.
Bectron® PU 4526 Features:
- UL 94 V0 flame retardancy
- Elastic and resilient potting compound
- Tough mechanical protection
- Room temperature cure
- Good processing viscosity
- ROHS compliant
Bectron® PU 4526 Applications:
- Potting of flame-sensitive electronics
- Sealing for PCBs and connectors
- Automotive and impact-resistant applications
About Prostech
Prostech Philippines is a one-stop solution provider for specialty materials and equipment across electronics manufacturing, from PCBA to final assembly. Our core material and equipment solutions include:
- PCB Assembly Materials
- Cleaning & Degreaser
- Circuit Board Protection
- Thermal Management Solutions
- EMI Shielding
- General Assembly Adhesives
- Elastomeric Materials
- Process Equipment: Potting & Coating Systems, UV/ Heat Curing, Plasma Treatment, Tape placement automation, and cleaning machines
Technical Added Value to customer
Prostech offers customized material and process equipment solutions with engineering support throughout R&D, production process optimization, and performance validation. Our in-house lab located in Alabang, Muntinlupa is equipped to conduct electronics material testing, application simulation, and adhesive validation, helping customers reduce the need for onsite trials and accelerate implementation.
International Supply Chain Advantage
Regional warehouse hubs across Vietnam, Singapore, Malaysia, and the Philippines ensure cross-border reliable supply. In Philippines PEZA-bonded warehouse located at Lima Industrial Park, Batangas enables Prostech to provide responsive, demand-based delivery and significantly shortens standard lead time for Philippines customers.
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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 |
