Senior Lab Chemist

6 days ago

Nagpur, Maharashtra, India Vaibhav Plasto Printing & Packaging Full time US$ 90,000 - US$ 1,20,000 per year

Role & responsibilities:

Raw Material & Incoming QC

  • Review and approve testing of all raw materials (silicone base polymers, fillers, crosslinkers, additives) as per specifications.
  • Develop, update, and validate raw material test methods.

In-Process & Final Product Testing

  • Plan, supervise, and perform testing on in-process batches and finished goods.
  • Conduct critical property checks: viscosity, specific gravity, hardness (Shore A),tensile & elongation, cure time, adhesion tests (peel, lap shear), weatherability, and durability.

Method Development & Troubleshooting

  • Develop and refine testing methods for new products or new customer requirements.
  • Analyses non-conformances, investigate quality complaints, and recommend corrective actions.

R&D & Formulation Support

  • Assist R&D team with lab-scale formulations, pilot trials, and product validation.
  • Conduct comparative studies of competitor products.

Documentation & Compliance

  • Ensure lab records, COAs, test reports, MSDS, calibration records, and QC checklists are accurate and up to date.
  • Ensure lab compliance with ISO 9001, ISO 14001, and any customer-specific standards.
  • Support internal & external audits.

Team & Equipment Management

  • Supervise and guide junior lab chemists and lab assistants.
  • Train new chemists on SOPs, safe chemical handling, and proper test procedures.
  • Oversee calibration, upkeep, and troubleshooting of lab instruments (viscometer, durometer, rheometer, FTIR, GC, etc.).

Preferred candidate profile:

  • Good understanding of silicone chemistry, crosslinking systems, and additives.
  • Familiarity with international standards (ISO, ASTM) for sealants.
  • Hands-on experience with testing standards such as ISO 11600, ASTM C920, ASTM C661, etc.

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