Describe the job first
Record how the part will be loaded, how often it will be handled and what temperatures it will encounter. Protection, insulation and structural support call for different evaluation plans.
Compare finished designs
Density alone does not predict the result. Wall thickness, ribs, interfaces and available space can matter just as much. Compare representative components with a common test plan.
Plan recovery from the start
A theoretical recycling route is not the same as an accessible one. Check collection, material separation and handling arrangements in the intended region.