ARATHANE 5750

Harmonization Code : 3909.20.00.90 | Amino-resins, phenolic resins and polyurethanes, in primary forms : Melamine resins : Other

ARATHANE 5750

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
Product Family

ARATHANE 5750 LV

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TDS, SDS & Technical Documents

Technical Specifications

General Properties
Appearance
Appearance at room temperature.
Amber Liquid / Translucent Liquid
Component System
Describes the number of components that must be supplied, mixed, or activated before application or cure.
Arathane 5750 A / Arathane 5750 B (LV)
Mix Ratio
The amount of a constituent divided by the total amount of all other constituents in a mixture
18:100
Pot Life
Pot life is the amount of time it takes for the viscosity of a material to double (or quadruple for lower viscosity materials) in room temperature after a material is mixed. It is closely related to work life but it is not application dependent, less precise and more of a general indication of how fast a system is going to cure.
2 hours
Specific Gravity
Specific gravity (SG) is the ratio of the density of a substance to the density of a reference substance; equivalently, it is the ratio of the mass of a substance to the mass of a reference substance for the same given volume. For liquids, the reference substance is almost always water (1), while for gases, it is air (1.18) at room temperature. Specific gravity is unitless.
1.21 / 0.92
Thermal Properties
Flash Point
The flashpoint of a solvent is the lowest possible temperature at which it can vaporize to form an ignitable vapor. Flashpoint is often confused with “autoignition temperature”, which is the temperature at which a solvent ignites without an ignition source.
7 / 17 °C

Additional Information

Technical properties

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
Technical properties

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

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