Bectron® PU 4516
Bectron® PU 4516 is a low-viscosity polyurethane system that offers excellent dielectric performance, adhesion, and thermal resistance. It cures with minimal shrinkage, making it suitable for applications requiring chemical and mechanical protection.
Bectron® PU 4516 Features:
- Low viscosity for easy potting
- High temperature resistance (up to 130°C)
- Excellent adhesion to diverse materials
- Strong dielectric properties
- Low shrinkage upon cure
- ROHS compliant
Bectron® PU 4516 Applications:
- Potting of high-protection electronics
- Batch and metering-based production lines
- Encapsulation of devices under chemical or thermal stress
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 4516 |
PH 4912 |
Units |
|
Colour |
Black |
Brown trans- parent |
|
|
Viscosity 25°C DIN 53019 |
450 ± 100 |
110 ± 30 |
mPa.s |
|
Spec. gravity 20°C DIN EN ISO 2811-1 |
1.03 ± 0.05 |
1.23 ± 0.05 |
g/cm3 |
|
Shelf Life |
6 |
6 |
months |
Properties of mixture
|
Property
Mix Ratio: PU 4516 : PH 4912 |
2.0 2.4 |
1 1 |
Parts by weight Parts by volume @20°C |
|
Viscosity DIN 53019 |
25°C |
310 ± 90 |
mPa.s |
|
Process time (200g mixture) |
25°C |
26 |
Min |
Mechanical properties of cured compound
|
Property |
Condition |
Value |
Units |
|
Specific Gravity DIN 16945 |
20°C |
1.09 ± 0.02 |
g/cm3 |
|
Hardness ISO 868 |
|
70 ± 10 |
Shore D |
|
Impact resistance DIN 53453 |
|
14 |
N/mm.mm2 |
