Product Introduction
HumiSeal® 1A33LOS is a low-odor, low-toxicity polyurethane coating designed for PCB protection. It provides robust environmental and chemical resistance, fluoresces under UV light for easy inspection, and complies with RoHS regulations, ensuring eco-friendly usage.
HumiSeal® 1A33LOS Features
- Low odor and toxicity for safer application
- Excellent environmental and chemical protection
- UV fluorescence for easy quality inspection
- Free from isocyanates and compliant with RoHS standards
HumiSeal® 1A33LOS Applications
- PCB protection in electronics and industrial coating
- Suitable for automotive and aerospace electronics applications
- Ideal for low-toxicity settings
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) | 0.92 ± 0.02 |
| Solids Content (% by weight, per Fed-Std-141, Meth. 4044) | 44 ± 2% |
| Viscosity (CPS, per Fed-Std-141, Meth. 4287) | 195 ± 65 |
| VOC (grams/litre) | 512 |
| Recommended Coating Thickness (microns) | 25 - 75 |
| Drying Time to Handle (per Fed-Std-141, Meth. 4061) | 30 minutes |
| Optional Curing Conditions to Reach Optimum Properties | 30 days at RT, 30 hours @ 76°C, 20 hours @ 88°C |
| Recommended Thinner | HumiSeal® Thinner 905 |
| 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) | Pending |
| Dielectric Withstand Voltage (per MIL-I-46058C) | >1500 volts |
| Insulation Resistance (per MIL-I-46058C) | 2.0 × 10¹⁴ ohms (200TΩ) |
| Moisture Insulation Resistance (per MIL-I-46058C) | 1.6 × 10¹⁰ ohms (16GΩ) |
