KESTER 1544
Harmonization Code : 3208.20.90 | Paints and varnishes that are dispersed or dissolved in a non aqueous medium
Main features
- Activated Rosin Oxide Removal
- Fast Wetting and Capillary Flow
- Non-Conductive Post-Solder Residue
Product Description
Kester 1544 Activated Rosin Liquid Flux is an alcohol-based, activated rosin flux for electronic soldering, solder coating, and tinning. The ROM1 formulation combines 50% typical solids with rapid wetting and capillary flow where non-activated or mildly activated rosin fluxes do not provide enough oxide removal. It can be applied by brush, dip, or wave methods and supports typical board-side preheat temperatures of 90 to 105 deg C. The post-solder residue is non-conductive and non-corrosive and normally does not require removal. Applications include wave soldering, lead tinning, and assembly processes requiring an activated rosin flux.
Key features
- Activated Rosin Wetting: ROM1 chemistry supports rapid wetting and capillary flow where stronger oxide removal is required.
- 50% Solids Flux Control: The high-solids rosin formulation is controlled by specific gravity during use.
- Non-Conductive Residue: Post-solder residue is non-conductive, non-corrosive, and normally left in place.
Applications / Suitable for
- Electronic assembly wave soldering
- Solder coating
- Tinning bare leads
TDS, SDS & Technical Documents
Technical Specifications
General Properties
Additional Information
As-supplied / before-processing properties
Typical liquid-flux properties and storage limits before soldering.
| Property | Value | Unit | Method / condition |
|---|---|---|---|
| Flux classification | ROM1 | J-STD-004 | |
| Specific gravity | 0.917 to 0.928 | At 25 deg C | |
| Typical solids | 50 | % | J-STD-004; IPC-TM-650 Method 2.3.34 |
| Flash point | 18 | deg C | 64 deg F |
| VOC content | 459 | g/liter | As supplied |
| Chloride and bromides | 0.44 | % | IPC-TM-650 Method 2.3.35 |
| Shelf life | 2 | years | Stored at 10 to 25 deg C |
