Product Introduction
HumiSeal® 1B59LU is an advanced, air-drying, single-component synthetic rubber conformal coating that combines low moisture vapor permeability with enhanced heat resistance. This coating is ideal for protecting electronics in harsh environments.
HumiSeal® 1B59LU Features:
- Fluoresces under UV light for easy inspection
- Compliant with RoHS Directive 2011/65/EU
- Compliant with IPC-CC-830
- Low moisture vapor permeability
- Improved heat resistance for demanding environments
HumiSeal® 1B59LU Applications:
- Protection for electronic assemblies
- Moisture and heat resistance in demanding environments
- Perfect for long-term reliability in extreme conditions
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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| Property | Value |
|---|---|
| Density | 0.79 ± 0.02 g/cm³ |
| Solids Content | 18.5 ± 1.5 % by weight |
| Viscosity | 210 ± 70 cps |
| VOC | 648 g/L |
| Drying Time to Handle | 6-10 minutes |
| Recommended Coating Thickness | 25 - 75 µm |
| Recommended Curing Conditions | 24 hrs @ RT or 30 min @ 76°C |
| Time to Reach Optimum Properties | 7 days |
| Recommended Thinners | HumiSeal® T903 or T904 |
| Recommended Stripper | HumiSeal® Stripper 1080 |
| Shelf Life at Room Temperature | 12 months |
| Minimum Operating Temperature | -65 ºC |
| Maximum Operating Temperature | 150 ºC |
| Glass Transition Temperature (DSC) | -49.6 °C |
| Dielectric Withstand Voltage | >1500 volts |
| Dielectric Strength | 85 KV/mm |
| Dielectric Constant (23 ºC, 1 MHz) | 1.9 |
| Dissipation Factor (23 ºC, 1 MHz) | 0.004 |
| Insulation Resistance | 8.4 x 10¹² Ohms (8.4 TΩ) |
| Moisture Insulation Resistance | 1.8 x 10¹⁰ Ohms (18 GΩ) |
| Surface Insulation Resistance (85 ºC / 85% RH, 50V) | 9.5 log Ohms |
| Volume Resistivity | 8.5 x 10¹⁵ Ohms·cm (8.5 PΩ) |
| Surface Resistivity | 2.6 x 10¹⁵ Ohms per Sq. (2.6 PΩ) |
| Moisture Permeability | 26 g/m²·day (110 µm) |
