Product Introduction
HumiSeal® 1B58LU is a single-component, air-drying synthetic rubber conformal coating designed for superior moisture and thermal protection. It offers low moisture vapor permeability and excellent thermal stability for electronic devices.
HumiSeal® 1B58LU Features:
- Fluoresces under UV light for easy inspection
- Easy to repair
- Contains environmentally friendly methylcyclohexane
- Low moisture vapor permeability
- Improved thermal stability for high-performance environments
HumiSeal® 1B58LU Applications:
- Electronic devices requiring enhanced moisture resistance
- Thermal stability in high-performance environments
- Perfect for various industries requiring high-performance coatings
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 | 0.77 ± 0.02 g/cm³ |
| Solids Content | 20 ± 1.5 % by weight |
| Viscosity | 240 ± 30 centipoise |
| VOC | 628 grams/litre |
| Drying Time to Handle | 10 minutes |
| Recommended Coating Thickness | 25 - 75 microns |
| Recommended Curing Conditions | 24 hrs @ RT or 30 min @ 76°C |
| Time to Reach Optimum Properties | 7 days |
| Recommended Thinner | HumiSeal® Thinner 903, 905 |
| Recommended Stripper | HumiSeal® Stripper 1080 |
| Shelf Life at Room Temperature | 18 months |
| Thermal Shock | -65°C to 125°C, 50 cycles per MIL-I-46058C |
| Glass Transition Temperature | -49.6°C |
| Tensile Strength (treated at 140°C) | 33.6 MPa |
| Extension (treated at 140°C) | 503 % (after 0 hrs), 484 % (after 1000 hrs), 443 % (after 2000 hrs), 96 % (after 3000 hrs) |
| Moisture Vapor Transmission | 5.2 g/m²•day•mil |
| Dielectric Withstand Voltage | >1500 volts |
| Insulation Resistance | 5.0 x 10¹⁴ ohms (500 TΩ) |
| Moisture Insulation Resistance | 7.5 x 10¹³ ohms (75 TΩ) |
