Injection Molding Technician - LSR; Liquid Silicone Rubber
Job in
Charlestown, Sullivan County, New Hampshire, 03603, USA
Listed on 2026-06-05
Listing for:
Whelen Engineering
Full Time
position Listed on 2026-06-05
Job specializations:
-
Manufacturing / Production
Manufacturing Engineer, Injection Molding, Manufacturing Production, Quality Engineering
Job Description & How to Apply Below
Location: Charlestown
Injection Molding Technician - LSR (Liquid Silicone Rubber)
Department: Mold Processing/Changing (604)
Employment Type: Full Time
Location: Charlestown, NH
Description
We are seeking motivated Injection Molding Technicians to support our LSR (Liquid Silicone Rubber) molding operations in a high-volume manufacturing environment. This position will primarily focus on LSR processing, troubleshooting, automation support, mold changes, startups, Machine Maintenance, and maintaining production efficiency while meeting safety and quality standards.
Experience levels range from entry-level candidates willing to learn to advanced technicians with LSR processing and automation experience.
Key Responsibilities
- Perform mold changes safely and efficiently
- Start up, shut down, and troubleshoot LSR molding machines
- Set up and maintain LSR pumps, mixers, and feed systems
- Monitor and adjust LSR mix ratios and material delivery systems
- Troubleshoot molding defects including flash, short shots, air traps, cure issues, and material inconsistencies
- Support automation systems, robots, and EOAT setups
- Maintain process parameters and document process changes
- Follow setup sheets and standard processing procedures
- Work with tooling, engineering, and production teams to improve processes
- Maintain clean work areas and follow contamination prevention procedures for silicone materials
- Follow all safety and lockout/tagout procedures
- Mechanical aptitude required
- Manufacturing experience preferred
- Injection molding or LSR experience preferred but not required for entry-level candidates
- Ability to troubleshoot mechanical and process-related issues
- Strong communication and teamwork skills
- Ability to work in a fast-paced manufacturing environment
- Willingness to work overtime as needed
- Experience with Liquid Silicone Rubber (LSR) molding
- Understanding of LSR curing, venting, and flow characteristics
- Experience with LSR pumps, mixers, and dosing systems
- Experience with automation and robotics
- Scientific molding knowledge
- RJG or AIM training/certifications
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