Product Introduction
HumiSeal® 521 is a versatile thinner compatible with a wide range of HumiSeal® coatings, including 1A20, 1A27, 1A33, 1B31, 1B66, 1B73, and 1R32. It offers excellent viscosity adjustment while maintaining the chemical balance of the coating. This thinner ensures easy handling, improved flow, and uniform coverage, especially in complex electronic and industrial assemblies. RoHS-compliant, it delivers versatility without sacrificing quality.
HumiSeal® 521 Features:
- Compatible with multiple HumiSeal® coatings
- Ensures easy viscosity adjustment
- Improves flow and uniform coverage
- RoHS compliant
HumiSeal® 521 Applications:
- Ideal for diverse coating types
- Suitable for complex electronic and industrial assemblies
- Used for consistent application in manufacturing environments
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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Typical Properties
| Thinner | 64 | 73 | 503 | 505 | 521 | 535 |
|---|---|---|---|---|---|---|
| Compatible HumiSeal® Coatings | 2A64 | 1B73 | 1B12, 1B31, 1B66, 1B73 | 1R32, 1R32A-2 | 1A20, 1A27, 1A33, 1B31, 1B66, 1B73, 1R32 | 2A53 |
| Relative Evaporating Rate (BuAc=1) | 0.89 | 1.0 | 3.77 | 1.65 | 0.60 | 1.50 |
| Specific Gravity | 0.95 ± 0.01 | 0.88 ± 0.01 | 0.85 ± 0.01 | 0.83 ± 0.01 | 0.87 ± 0.01 | 0.87 ± 0.01 |
| Boiling Point (°C) | 110 | 127 | 82 | 117 | 137 | 110 |
| Vapour Pressure (mmHg) | 9.1 | 8.0 | 45.4 | 15 | 19.4 | 45.4 |
| Vapour Density (Air=1) | 3.4 | 4.0 | 4.0 | 3.5 | 3.6 | 4.0 |
| Flash Point (°C) TCC | 5 | 27 | -1 | 14 | 27 | 5 |
| VOC (grams/litre) | 950 | 882 | 850 | 830 | 868 | 868 |
| Shelf Life, DOM | 24 months | |||||
| Colour | Clear | |||||
