HUMISEAL 1R32A-2/505
Harmonization Code : 3403.19 | Lubricating Preparations (With 70% or More Petroleum Oils) For Automotive and Other Uses

Main features
- Ten-Minute Handling Dry
- Ready-to-Use Acrylic Pre-Blend
- UV-Fluorescent Coverage Inspection
Product Description
HumiSeal 1R32A-2/505 Acrylic Conformal Coating is a fast-drying, single-component acrylic conformal coating pre-blend for printed circuit assemblies. The ready-to-use liquid supports automated coating processes and can also be applied by dipping, spraying, or brushing after the ordered PB viscosity grade is confirmed. It dries to handling condition in 10 minutes under the stated test method and develops a clear protective film with ultraviolet fluorescence for inspection. The coating is used where acrylic moisture and environmental protection are required on circuit boards, components, and electronic assemblies while retaining practical repair access.
Key features
- Fast-Drying Acrylic Film: The coating reaches handling condition in 10 minutes under ASTM D1640.
- Ready-to-Use Pre-Blend: The /505 format supports direct coating after confirming the ordered PB viscosity grade.
- UV Inspection Fluorescence: Ultraviolet fluorescence supports visual verification of coating coverage.
Applications / Suitable for
- Printed circuit assembly conformal coating
- Automated film coating after PB grade confirmation
- Dipping, spraying, or brushing of electronic assemblies
TDS, SDS & Technical Documents
Technical Specifications
General Properties
Thermal Properties
Electrical Properties
Additional Information
As-supplied / before-processing properties
Typical product-level handling values for the 1R32A-2/505 pre-blend family; grade-specific liquid properties are omitted because the ordered PB viscosity grade is not identified.
| Property | Value | Unit | Method / condition |
|---|---|---|---|
| Shelf life | 12 | months | Pre-blend shelf life |
| Storage temperature | 0 to 35 | deg C | Tightly closed container |
| Pre-use equilibration | 24 | hours | 18 to 32 deg C before use |
| Drying time to handle | 10 | minutes | ASTM D1640 |
After-processing / final-state properties
Typical processed-coating values for HumiSeal 1R32A-2/505; cure conditions and test methods are retained where they affect interpretation.
| Property | Value | Unit | Method / condition |
|---|---|---|---|
| Recommended coating thickness | 25 to 75 | um | Applied coating thickness |
| Recommended cure | 24 | hours | Room temperature |
| Accelerated cure | 2 | hours | 76 deg C |
| Time to optimum properties | 7 | days | After application |
| Thermal shock range | -65 to 125 | deg C | 50 cycles; MIL-I-46058C |
| Glass transition temperature | 14 | deg C | DSC |
| Flammability | V-0 | UL 94 | |
| Dielectric withstand voltage | greater than 1,500 | V | MIL-I-46058C |





















