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- Deformations on the land area.
- Thin or weak land area – too narrow.
Solutions
- Increase the TIMER setting on the sealer.
- Check cap/liner specifications to ensure the correct liner is being used.
- Check container specifications.
- Verify the torque requirement of your container and closure.
- Verify the proper alignment of the sealing head and your container during the sealing process.
- Inspect your containers.
Overheated or Burned Seal
An Overheated or Burned Seal result on a container is when the liner shows signs of discoloration,
deterioration, and/or wrinkling. The inside of the closure may show signs of melting, and on a 2-
piece liner the backing material may be discolored or burned, depending upon the severity of the
overheating.
A burned smell often accompanies overheating and may possibly affect the smell or taste of your
product and may be the only indication of overheating.
NOTE: When overheating of the liner occurs, ignition of the liner and/or container contents is
possible.
Possible Causes
- Excessive cycle time.
- Insufficient on-torque.
- Improper sealing head placement on cap – not centered or level to the closure.
- Deformations on the land area.
- Thin or weak land area – too narrow.
Solutions
- Decrease the TIMER setting on the sealer.
- Verify the torque requirement of your container and closure.
- Verify the proper alignment of the sealing head and your container during the sealing process.
- Inspect your containers.
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