The conformal coatings of the series ELPEGUARD SL 1305 AQ-ECO are colorless transparent, water-borne 1-pack conformal coatings for assembled printed circuit boards based on polyurethane resins (PUR), where the organic solvents have been almost completely substituted by water. They contain special water-borne binding agents that are dispersed in demineralized water. Merely a small portion of organic solvent (< 10 %) is required for the film formation of the protective coat. They neither contain free volatile isocyanate nor free isocyanate groups.
FEATURES:
- excellent protection against corrosion (e.g. electro corrosion and migration) for assembled printed circuit boards/flat packs
- water-borne/aqueous lacquer system
- no odor annoyance
- very fast drying to tack-free stage
- very good dielectric properties
- very high tracking resistance (CTI > 600)
- UL approval of the fluorescent adjustments as conformal coatings acc. to UL 746E (see also item 3)
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SL 1305 AQ-ECO SL 1305 AQ-ECO-FLZ |
SL 1305 AQ-ECO/25* SL 1305 AQ-ECO-FLZ/25* |
SL 1305 AQ-ECO/55*
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| Colour/appearance | colourless transparent, colourless transparent, fluorescent |
colourless transparent, colourless transparent, fluorescent |
colourless transparent |
| Solids content, ISO 3251 1 h, 125 °C [257 °F], 1 g weighed quantity |
30 ± 2 % by weight | 33 ± 2 % by weight | 34 ± 2 % by weight |
| Viscosity at 20 °C [68 °F] flow time acc. to ISO 2431 4 mm ISO flow cup |
26 ± 2 s | ||
| 5 mm ISO flow cup | 34 ± 3 s | ||
| 6 mm ISO flow cup | 43 ± 5 s | ||
| Viscosity at 20 °C [68 °F] flow time acc. to DIN 53211 4 mm DIN flow cup |
15 ± 1 s | 25 ± 2 s | 55 ± 5 s |
| Density at 20 °C [68 °F] ISO 2811-1 |
1.04 ± 0.05 g/cm³ | 1.04 ± 0.05 g/cm³ | 1.04 ± 0.05 g/cm³ |
