Product Introduction
HumiSeal® 1A68 is a single-component urethane coating designed for general PCB applications. It is free of isocyanates and ensures safer application while providing excellent environmental protection. This coating fluoresces under UV light for easy inspection and meets IPC-CC-830 and RoHS compliance standards.
HumiSeal® 1A68 Features
- Durable protection for PCB applications
- Containing no free isocyanates, making it a safer urethane coating
- Fluoresces under UV light for easy inspection
- Meets IPC-CC-830 and RoHS compliance
- Recognized under UL File Number E105698 for industry reliability
HumiSeal® 1A68 Applications
- Protects PCBs from environmental factors
- Suitable for general electronics and industrial applications
- Compliant with industries requiring UL and RoHS standards
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 (per ASTM D1475, g/cm³) | 0.95 ± 0.02 |
| Solids Content (% by weight, per Fed-Std-141, Meth. 4044) | 44 ± 2% |
| Viscosity (CPS, per Fed-Std-141, Meth. 4287) | 180 ± 20 |
| VOC (grams/litre) | 521 |
| Recommended Coating Thickness (microns) | 25 - 75 |
| Drying Time to Handle (per Fed-Std-141, Meth. 4061) | 15 minutes |
| Optional Curing Conditions to Reach Optimum Properties | 30 days at RT, 30 hours @ 76°C, 20 hours @ 88°C |
| Recommended Thinner (dipping, brushing) | HumiSeal® Thinner 503 |
| Recommended Thinner (spraying) | HumiSeal® Thinner 521 |
| Recommended Stripper | HumiSeal® Stripper 1063 |
| Shelf Life at Room Temperature (DOM) | 24 months |
| Thermal Shock (50 cycles per MIL-I-46058C) | -65°C to 125°C |
| Coefficient of Thermal Expansion (TMA) | 193 ppm/°C |
| Glass Transition Temperature (Tg - DSC) | 26°C |
| Modulus (DMA) | 27.2 MPa |
| Flammability (per UL 94) | V-0 |
| Dielectric Withstand Voltage (per MIL-I-46058C) | >1500 volts |
| Dielectric Breakdown Voltage (per ASTM D149) | 7500 volts |
| Dielectric Constant (1MHz, 25°C, ASTM D150-98) | 3.6 |
| Dissipation Factor (1MHz, 25°C, ASTM D150-98) | 0.03 |
| Insulation Resistance (per MIL-I-46058C) | 2.0 × 10¹⁴ ohms (200TΩ) |
| Moisture Insulation Resistance (per MIL-I-46058C) | 1.6 × 10¹⁰ ohms (16GΩ) |
| CTI (UL746E @ 600 volts) | 0 PLC |
| Fungus Resistance (per ASTM G21) | Passes |
