About Us

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Located in Historic Hudson Falls, New York, Associated Polymer Labs (APL) is a leader in polymer science and plastics engineering. 

Co-founded and led by Vice President Jim Zwynenburg, our laboratory specializes in the testing, evaluation, and formulation of polymers, plastics, composites, elastomers, and rubbers.

At APL, we bridge the gap between complex raw material data and practical manufacturing solutions. Whether you are a startup or an established manufacturer, we provide the technical expertise needed to qualify raw materials, optimize processes, and ensure product performance.

We provide comprehensive laboratory services and pilot-scale development across a wide range of specialties:

• Materials Testing & Analysis: Expert evaluation of barrier films, coating systems, and rheology (the flow of materials).
  
• Product Development: Specialized experience in polymer and plastic foams, including resin selection, formulation, and aging models.
  
• Process Development: Pilot plant extrusion trials for new additives, fillers, and chemical foaming agents.
  
• Innovative Solutions: Development of unique products, such as recycled plastic-fiber composites and syntactic foams.
  
• Medical & Pharmaceutical Support: Extensive history in medical device rheology and pharmaceutical product stability studies.
  

With over 15 years of experience in expert witness testimony and litigation support, we provide data-driven investigations for:

• Patent Infringement: De-formulation and mechanical property analysis to verify intellectual property.
  
• Product Failure Analysis: Identifying root causes for manufacturing defects, such as adhesive failures or coating peeling.
  
• Specialized Investigations: Air quality testing, off-gassing models, and odor source identification.
  

Jim Zwynenburg brings over 40 years of experience to every project. A graduate of the University of Massachusetts, Lowell in Plastics Engineering , he holds multiple US patents for innovative foam compositions and recycled materials. Under his leadership, APL has achieved a 10–40% annual growth rate by focusing on outstanding customer service and the translation of complex data into actionable insights.