Product Introduction
HumiSeal® 1C49LV is a VOC-free silicone conformal coating designed for exceptional moisture and environmental protection. Its low-viscosity formula ensures full coverage, and it is ideal for applications requiring high flexibility and reworkability.
HumiSeal® 1C49LV Features
- Moisture-curing for effective protection
- Low viscosity for easy application
- VOC-free, environmentally safe
- High flexibility for stress tolerance
- UV fluorescence for easier inspection
- Meets industry standards (MIL-I-46058C, RoHS, UL)
HumiSeal® 1C49LV Applications
- Suitable for PCB protection
- Ideal for high-performance electronics exposed to moisture
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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| Density, per ASTM D1475 | 0.97 ± 0.03 g/cm³ |
| Min. Solids Content, % by weight per Fed-Std-141, Meth. 4044 | 95% |
| Viscosity, per Fed-Std-141, Meth. 4287 | 9000 ± 1500 centipoise |
| VOC | 0 grams/litre |
| Recommended Coating Thickness | 50 – 200 microns |
| Drying Time to Handle per Fed-Std-141, Meth. 4061 | <10 mins |
| Recommended Curing Conditions | 24 hrs @ RT or 20 min @ 76°C* |
| Time required to Reach Optimum Properties | 7 days |
| Recommended Stripper | HumiSeal Stripper 1091 |
| Shelf Life at Room Temperature, DOM | 12 months |
| Thermal Shock, 50 cycles per MIL-I-46058C | -65°C to 200°C |
| Coefficient of Thermal Expansion – TMA | 367 ppm /ºC |
| Glass Transition Temperature – DSC | < -65°C |
| Storage Modulus – DMA | 408 MPa @ -40ºC |
| 1.6 MPa @ 25ºC | |
| 1.4 MPa @ 80ºC | |
| Tensile, per ASTM D412 | 30-50 psi |
| Elongation, per ASTM D412 | 80-120 % |
| Build per Dip, per ASTM D823 | 5 mils |
| Flammability, per UL94 | V-1 |
| Dielectric Withstand Voltage, per MIL-I-46058C | >1500 volts |
| Dielectric Breakdown Voltage, per ASTM D149 | 7000 volts |
| Dielectric Constant, at 1MHz and 25°C per ASTM D150-98 | 2.5 |
| Dissipation Factor, at 1MHz and 25°C per ASTM D150-98 | 0.01 |
| Insulation Resistance, per MIL-I-46058C | 5.0 x 1014 ohms (500TΩ) |
| Moisture Insulation Resistance, per MIL-I-46058C | 1.0 x 1010 ohms (10GΩ) |
| Fungus Resistance, per ASTM G21 | Passes |
