600-251 Flowable White Filled Encapsulant/Pottant
(2-part silicone)
600-251 is a platinum catalyzed, room temperature, addition cure silicone for potting and encapsulant applications requiring thermal conductivity.
UL 94 V-0 certification is pending for 600-251.
600-251 is a platinum catalyzed, room temperature, addition cure silicone for potting and encapsulant applications requiring thermal conductivity. The cure rate of 600-251 can be dramatically accelerated with moderate heat. 600-251 has good flowability and moderate thermal conductivity, with excellent dielectric properties and flame resistance.
600-251 is easy to process and calibrate on the manufacturing floor, featuring a 1:1 mix ratio with similar viscosities of Part A and Part B. Long working times facilitate deaeration. Application methods include manual mixing and pouring, or automated mixing and dispensing.
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Applications
- Photovoltaic junction boxes
- Power inverters/power supplies
- Industrial controls, transformers, and amplifiers
- High voltage resistor packs and relays
- Sensor electronics
- Security coatings
- General potting applications
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Packaging and Lead Times
This product is available in the following formats:
- 5 gallon pail
- 55 gallon drum
Lead times are:
- Please contact our Customer Operations team at 216-881-8111 or via this online form for up-to-date lead times
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Specifications
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Physical Properties
Form Cure Chemistry Electronics Grade Appearance Mix Ratio Specific Gravity Viscosity (cPs) Working Time Cure Time Durometer Shore A Tensile Strength (psi) Elongation (%) Pottant 2k Addition Cure Yes White, flowable. Its cured appearance is opaque white. 1:1 (v:v) Part A: 1.60
Part B: 1.60Part A: 6,000
Part B: 5,400
Mixed: 5,7002 hrs @ RT 24 hrs @ RT
30 min @ 140°F (60°C)52 420 71 ± 3 -
Electrical Properties
Dielectric Strength Dielectric Constant at 100 Hz Dielectric Constant at 100 kHz Dissipation Factor at 100 Hz Dissipation Factor at 100 kHz Volume Resistivity (Ω cm) >22 kV/mm
>559 V/mil3.38 3.23 0.0317 0.0058 7.20x1013 -
Certifications
Flammability (UL-94) V-0 pending
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Physical Properties
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