Pressure Hold Versus Pressure Cycling for Static Seals
A pressure hold examines a stable state; cycling examines changes after repeated loading. Neither replaces the other. Keep intermediate che…
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Sealing Design & Assembly
Review silicone and rubber seal glands, contact bands, installation, clamping and leak localization. Confirm dimensions, compound, media and acceptance conditions for each project.
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Seal Lubrication: Assembly Force, Compatibility and Contamination
Choose lubrication around compatibility, assembly needs and cleanliness. More grease is not inherently safer; excess can migrate and affect…
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Locating Tabs on Shaped Gaskets: Positioning Versus Load Carrying
Locating tabs establish orientation. Drawings should state whether they may carry tension, shear or clamp load. Using a small tab as a hand…
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When to Measure Silicone Rings After Stretching and Assembly
Standardize the measurement state after stretching, compression or transport restraint. Readings immediately after unpacking, installation …
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Window Leaks: Checking the Lens, Housing and Fastening Paths
Window assemblies have multiple possible paths, including lens edges, mounting holes and the seal frame. Water visible inside a lens does n…
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Bulging Corners on Silicone Seal Frames: Radius and Assembly Checks
Check the frame's free shape, gland corners and insertion sequence together. Forcing a bulge flat can conceal accumulated material and crea…
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Seal-Surface Scratches: Direction and Contact-Band Location
Record defect direction, depth and location together. A groove crossing the contact band and a scratch outside it should not receive the sa…
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Locating Leaks in Multiport Assemblies: Fixture Baseline First
Distinguish product interfaces from the test system before isolating paths. Temporary blocking should narrow the investigation without dist…
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Water-Test Pass, Air-Test Fail: Understanding Seal Test Boundaries
Water and air tests can differ in the phenomenon observed, medium and sensitivity. Conflicting results do not immediately prove an instrume…
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Pressure-Decay Drift: Separating Leakage from Thermal Effects
Air-leak readings respond to more than leakage. Check temperature and system stabilization first, retain raw curves and use a blank or refe…
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