ARATHANE 5750
Harmonization Code : 3909.20.00.90 | Amino-resins, phenolic resins and polyurethanes, in primary forms : Melamine resins : Other
Main features
- Soft Repairable Urethane Conformal Coating
- Room-Temperature Coating Cure
- Low-Outgassing Coating Application
Product Description
ARATHANE® 5750 LV A/B Urethane Conformal Coating is a two-part, translucent urethane conformal coating for insulating and protecting printed circuit boards and electronic assemblies. The soft, repairable coating may be applied by dip, spray, or spreading and is documented for resistance to reversion under heat and high humidity. The mixed system provides a typical two-hour pot life at 25°C and may be cured at room temperature or with accelerated heat. Typical cured data include electrical insulation, low-temperature flexibility, and low-outgassing performance for supported electronic applications.
Key features
- Repairable urethane coating: The soft conformal coating may be applied by dipping, spraying, or spreading.
- Two-hour pot life: The mixed system provides a typical two-hour working period at 25°C.
- Low-outgassing properties: Typical cured data include 0.41% total mass loss and 0.03% collected volatile condensable material.
Applications / Suitable for
- Printed circuit boards and electronic assemblies
- Assemblies exposed to heat and high humidity
- Space and high-vacuum electronics requiring documented low-outgassing materials
TDS, SDS & Technical Documents
Technical Specifications
General Properties
Thermal Properties
Additional Information
As-supplied / before-processing properties
Typical as-supplied values unless otherwise stated. These values are not sales specifications.
| Property | Value | Unit | Method / condition |
|---|---|---|---|
| Appearance, Part A | Amber | N/A | As supplied |
| Appearance, Part B LV | Translucent | N/A | As supplied |
| Viscosity, Part A | 50 | cP | As supplied |
| Viscosity, Part B LV | 600 | cP | As supplied |
| Mix ratio | 18:100 | parts by weight | Part A : Part B |
| Initial mixed viscosity | 550 | cP | After mixing |
| Pot life | 2 | h | 100 g mass at 25°C |
| Cure options | 7 days at 25°C; 9 h at 65°C; 4 h at 100°C; 2 h at 125°C | N/A | Typical cure schedules |
After-processing / final-state properties
Typical final-state values under the stated conditions. These values are not sales specifications.
| Property | Value | Unit | Method / condition |
|---|---|---|---|
| Hardness | 50 | Shore A | Typical cured value |
| Tensile strength | 2.4 | MPa | Typical cured value |
| Elongation | 150 | % | Typical cured value |
| Glass-transition temperature | <-70 | °C | Typical cured value |
| Maximum continuous-use temperature | 130 | °C | Documented use limit |
| Volume resistivity | 9.3 × 10¹⁵ | ohm·cm | At 25°C |
| Total mass loss | 0.41 | % | Vacuum outgassing test |
| Collected volatile condensable material | 0.03 | % | Vacuum outgassing test |
