Chemical Encapsulation
Fluorinated elastomer compounds isolate sensitive electronics from liquid fuel and hydrocarbon exposure. Applying fluorosilicone potting creates a resilient physical barrier around circuit boards, transducer elements, and electrical interconnects. Trifluoropropyl side chains on the silicone polymer backbone resist swelling, softening, and chemical degradation when exposed to jet fuel, automotive gasoline, or synthetic lubricants.
The material maintains elasticity across temperatures ranging from minus sixty degrees Celsius to two hundred degrees Celsius. Metrological verification checks dielectric breakdown strength, insulation resistance, and dimensional swelling percentages after prolonged fluid immersion tests.
Solvent Barrier
Polymer matrices block non-polar solvent absorption and chemical attack. Liquid fuels fail to break down polymer cross-links, preventing dimensional changes in potting layers. Physical encapsulation preserves mechanical damping properties in high-vibration applications.
Chemical exposure tests evaluate weight gain and hardness change after exposure cycles.
Thermal Expansion
Volumetric thermal expansion coefficients govern mechanical stress exerted on embedded components. Thermal cycling induces strain on solder joints if expansion mismatches exist between potting and circuit substrates. Low durometer formulations absorb strain without fracturing fragile component leads.
Temperature limits define safe operational ranges.
Adhesion Boundary
Primer application promotes chemical bonding between potting polymers and housing walls. Insufficient surface preparation allows moisture ingress along housing interfaces. Quality testing verifies lap shear bond strength on representative material samples.
