SealSpec: Gasket Guide

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About this app

Understand container seals, inspect common leak problems, and record gasket measurements with SealSpec: Gasket Guide.

Whether you are checking a leaking jar lid, examining a bottle cap seal, or comparing replacement O-ring dimensions, SealSpec brings practical gasket reference tools together in one clear workspace.

EXPLORE SEALS AND CLOSURES
Browse illustrated guides to jar lids, bottle caps, O-rings, snap-lock containers, clamp closures, and other common sealing designs. Interactive diagrams explain the lid, gasket, container rim, and sealing contact areas.

INVESTIGATE LEAKS
Follow a guided checklist for symptoms such as leakage around the lid edge, dripping near a cap, uneven seating, or a displaced gasket. Review possible causes and inspection steps based on your answers. Results are guidance, not a confirmed diagnosis.

MEASURE GASKETS
Enter dimensions for flat gaskets and O-rings, switch between millimeters, centimeters, and inches, and view calculated dimensions where the selected geometry supports them. Clear diagrams help you keep track of inner diameter, outer diameter, and thickness.

COMPARE DIMENSIONS
Compare a recorded reference gasket with candidate measurements. See numerical differences and missing values without unsupported claims that a part will fit.

KEEP INSPECTION NOTES
Save inspection details, measurements, and notes on your device. Reopen records when you need to revisit a seal or compare dimensions again.

MATERIAL REFERENCE
Read practical information about common sealing materials, including silicone, EPDM, nitrile rubber, and cork, along with important limitations.

SealSpec is designed for everyday household containers and general educational use. It cannot test a physical seal, verify material certification, or guarantee a leakproof fit. Follow manufacturer guidance for replacement parts and safety-critical applications.