2K500 Two Part Conformal Coating

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2K500 is a hard, two-part polyurethane conformal coating system which provides the protection properties of an encapsulation resin, with the ease of application of a conformal coating and without the use of harmful solvents. It can be easily applied to provide excellent coverage, even areas with difficult geometries and maintains clarity even after prolonged exposure to UV light.

It is more abrasion resistant than 2K100 or 2K300 and has a wider operating temperature range providing protection for electronics exposed to temperature over a long period of time, as well as providing excellent thermal shock resistance.


Approvals RoHS Compliant (2015/863/EU): Yes
REACH Compliant: Yes
IPC-CC-830: Meets Requirements
BMW GS95011-5: Meets Requirements
Liquid Properties Appearance: Clear Colourless Liquid
Density @ 20°C: 1.05 g/ml (mixed)
Flash Point: >100⁰C
Min. Solids Content (1hr @80˚C): >98.5%
Mix Ratio: 1:1 v/v
Viscosity (mixed) @ 25°C: 1000-1500 (Spray Settings Pg. 2)
Useable Life @ 20°C: 40 Minutes
Touch Dry Time at 20°C: 240 Minutes
Recommended Drying Time: 10 Minutes @ 80°C
Dry Film Coating Colour: Colourless/Transparent
Recommended Coating Thickness: 100-300µm
Temperature Range: -40 to +130⁰C
Thermal Shock Range: -65 to +125⁰C
Thermal Shock (1000 cycles): No cracking, blistering or delamination*
Shore Hardness: A70-80
Glass Transition Temperature (Tg): 15°C (DMA)
Elongation at Break (BS EN ISO 537): 40-50%
Elastic Modulus (BS EN ISO 537): 1310 MPa @ -40°C
10.5 MPa @ 20°C
17.6 MPa @ 130°C
Tensile Strength (BS EN ISO 537): 4.5 MPa @ 20°C
Dielectric Strength: 90 kV/mm
Dielectric Constant: 2.5
Dissipation Factor @ 1MHz, 25°C: 0.01
Surface Insulation Resistance: 5 x 1015 Ω
Moisture Resistance (IPC-CC-830): 9.56 x 109 Ω

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