I have 20 years of experience, and specialize in the field of plastics with specific knowledge in the areas of plastic failure analysis, plastic material and failure, plastic product design, plastic manufacturing, and plastic forensics. I have published on such topics as why PVC and CPVC plastics fail and plastic manufacturing workplace safety. I have testified 40 times on topics such as plastic failure and product defect, plastic manufacturing defects, and PVC and CVPC plastic pipe and fitting failures.