SOP Guide for Pharma

Gel Manufacturing: SOP for Sealing Gel Packaging to Prevent Contamination – V 2.0

Gel Manufacturing: SOP for Sealing Gel Packaging to Prevent Contamination – V 2.0

Standard Operating Procedure for Sealing Gel Packaging to Ensure Contamination Control


Department Gel Manufacturing
SOP No. SOP/GM/097/2025
Supersedes SOP/GM/097/2022
Page No. Page 1 of 12
Issue Date 02/06/2025
Effective Date 04/06/2025
Review Date 02/06/2026

1. Purpose

To define a standard procedure for effective sealing of gel packaging in order to prevent microbial, particulate, or physical contamination and to maintain product integrity until the point of use.

2. Scope

This SOP applies to all personnel involved in the primary and secondary packaging of gels

in tubes, jars, sachets, or other containers used in the Gel Manufacturing department.

3. Responsibilities

  • Packaging Operators: Operate sealing machines and verify the integrity of each seal.
  • Quality Assurance: Inspect sealed units during and after sealing process.
  • Maintenance Engineer: Ensure periodic servicing and calibration of sealing machines.
  • Packaging Supervisor: Ensure SOP compliance and documentation completeness.

4. Accountability

The Head – Manufacturing is accountable for implementing and monitoring the proper sealing operations to ensure contamination control of packaged gel products.

5. Procedure

5.1 Preparation

  1. Verify the cleanliness of the sealing equipment and working area as per SOP for equipment cleaning.
  2. Ensure the sealing machine is properly set up as per packaging component specifications (tube/jar type, material, cap style).
  3. Check the sealing temperature, pressure, and dwell time settings.
  4. Perform sealing on a few dummy samples and inspect for quality attributes such as uniformity, strength, and appearance.
  5. Send dummy samples to QA for initial approval before batch processing.

5.2 Sealing Operation

  1. Start sealing process only after line clearance and QA approval of trial samples.
  2. Feed filled tubes/jars into the sealing machine carefully to avoid spillage or misalignment.
  3. Ensure each unit is completely sealed with no product leakage, wrinkles, air pockets, or damage to packaging material.
  4. Monitor sealing machine parameters at predefined intervals (e.g., every 30 minutes).
  5. Remove any defective or incompletely sealed products from the line and record as rejected units.
  6. Check seals periodically under magnification for fine cracks or breaches.

5.3 Contamination Prevention Measures

  1. Maintain personal hygiene and gowning protocol while operating sealing stations.
  2. Operate under Grade D environment with regular environmental monitoring (refer to environmental SOP).
  3. Ensure packaging components (tubes, jars, seals) are pre-cleaned and kept in sanitized bins until use.
  4. Avoid touching the sealing end with bare hands or unsterile tools.

5.4 Post-Sealing Activities

  1. Segregate and label the sealed batch as “Sealed and Awaiting Inspection”.
  2. Conduct random destructive testing on sealed units (Annexure-2).
  3. Log sealing machine parameters, inspection results, and rejection counts in the Sealing Logbook (Annexure-1).

6. Abbreviations

  • SOP: Standard Operating Procedure
  • QA: Quality Assurance
  • GMP: Good Manufacturing Practices

7. Documents

  1. Sealing Operation Logbook – Annexure-1
  2. Seal Integrity Inspection Report – Annexure-2
  3. Line Clearance Checklist
  4. Batch Manufacturing Record (BMR)

8. References

  • Schedule M – Packaging Section
  • WHO TRS 986 – Guidelines on Packaging
  • FDA 21 CFR Part 211.130 – Packaging and Labeling Control

9. SOP Version

Version: 2.0

10. Approval Section

Prepared By Checked By Approved By
Signature
Date
Name
Designation Jr. Production Chemist QA Executive Head – Manufacturing
Department Gel Manufacturing Quality Assurance Manufacturing

11. Annexures

Annexure-1: Sealing Operation Logbook

Date Batch No. Start Time End Time Machine ID Temp (°C) Pressure (Bar) Rejects Operator

Annexure-2: Seal Integrity Inspection Report

Batch No.
Sample Size
Number of Acceptable Units
Number of Rejected Units
Observed Issues
QA Inspector Name
Date

Revision History

Revision Date Revision No. Change Description Reason Approved By
01/06/2022 1.0 Initial Issue New SOP implementation QA Head
02/06/2025 2.0 Included seal integrity testing and updated preventive measures Annual Review QA Head
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