Description
AC-41 is a high temperature; fast cure, air dry, polyurethane varnish, and is an excellent conformal coating for all electrical and electronic parts. It is especially recommended as a circuit board coating. SYNTHITE® AC-41 is also available in aerosol as DOLPH – SPRAY® AC-41.
Features & Benefits:
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Typical Applications:
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Typical Properties:
| Color /Appearance | Light-Dark Amber |
| Density @ 77°F (25 °C), Lbs/gal | 7.0 – 8.0 |
| Viscosity @ 77°F (25°C) Brookfield Viscometer cps | 125 – 275 |
| Flash point | 81°F (27°C) |
| Cure Time @ 77°F (25°C) on Strip, min | 10 (Set to Touch) 30 (Tack Free) |
| Film Build, mils/side, ASTM D-115 | 1 – 1.5 |
| Thinner (Solvent) | T-200X |
| Federal Specification, TT-P-1436, Free of After-Tack | 1 Hour |
| VOC-bulk, lb/gal VOC-aerosol (calculated) |
4.3 47% |
Electrical:
| Dielectric Strength, ASTM D 115, volts/mil | 2,000 (Dry) 1,200 (Wet) |
Chemical Resistance:
| Water | Excellent |
| Acid (10% Sulfuric Acid) | Excellent |
| Alkali (1% Sodium Hydroxide) | Excellent |
| Salt Water | Excellent |
| Oil, ASTM D-115 | Passed |
| Corrosive Effect on Copper | None |
Thermal Class (UL-1446):
| Twisted Pair | 130 (MW-28) |
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