PU Potting
Polyurethane Flexible Potting Compound
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Vibration & Shock Absorption: Damps mechanical shock and vibration to protect sensitive components.
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Thermal Cycling Tolerance: Expands and contracts with temperature change without cracking or stressing the PCB.
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Prevents Micro-Cracks: Elastic nature avoids micro-cracking that can lead to moisture ingress and failure.
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Moisture & Chemical Resistance: Shields electronics from humidity, salt mist, oils, dust, and harsh environments.
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Low Internal Stress: Soft cured resin minimizes strain on SMDs, coils, sensors, and connectors.
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Easy Rework & Repair: Can be cut or peeled for servicing, unlike rigid potting that permanently locks components.
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Plastic Housing Compatibility: Flexibility prevents stress cracking of plastic enclosures during use.
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Stable Electrical Insulation: Maintains high dielectric insulation even during bending, vibration, and movement.
PU Hard Potting Compound
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Balanced Hardness with Slight Flexibility – Cures to a tough semi-rigid layer that protects components while absorbing limited stress to avoid cracking like rigid epoxy.
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Excellent Shock and Impact Resistance – Withstands drops, impacts, and handling, preventing PCB and component damage.
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Superior Moisture and Chemical Protection – Creates a barrier against humidity, salt mist, oils, and industrial chemicals for long-term field reliability.
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Good Thermal Stability – Performs across wide temperature variations and repeated heating/cooling cycles without becoming brittle.
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Strong Adhesion to Plastics and Metals – Bonds firmly to PCB substrates, housings, and metallic parts, preventing delamination over time.
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Better Reworkability Compared to Epoxy – Can be cut, drilled, or partially removed for servicing, unlike rigid epoxy systems.
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Maintains Strong Electrical Insulation Over Time – High dielectric strength prevents short circuits, arcing, and breakdown even in humid conditions.