If a permanent groove in the silicone gasket greater than 1/8 inch is found, what is indicated?

If a permanent groove in the silicone gasket greater than 1/8 inch is found, what is indicated?

• A. Gasket should be replaced
• B. Hatch is warped
• C. No action needed
• D. Check alignment and reseal

Answer: (B)

A noticeable, permanent groove in the silicone gasket that’s greater than 1/8 inch shows the sealing surface itself has been deformed. The gasket is being cut by a warped or uneven mating surface, which means the root cause is the hatch being warped. Because the seal depends on a flat, true surface, a warped hatch will continue to damage a new gasket and prevent a proper seal. So the correct interpretation is that the hatch is warped, not just a worn gasket. Address the warp (realign or repair/replace the hatch) and then reseal as needed.

A noticeable, permanent groove in the silicone gasket that’s greater than 1/8 inch shows the sealing surface itself has been deformed. The gasket is being cut by a warped or uneven mating surface, which means the root cause is the hatch being warped. Because the seal depends on a flat, true surface, a warped hatch will continue to damage a new gasket and prevent a proper seal. So the correct interpretation is that the hatch is warped, not just a worn gasket. Address the warp (realign or repair/replace the hatch) and then reseal as needed.