Making the right choices
Having an LCA is necessary, but it is only a starting point regarding material choice, especially for plastics. Indeed, the question is not just about rating environmental performance but about providing significant improvements to save resources and minimize externalities. This is where the usual “design to cost” is becoming obsolete: generating environmental performance has a cost! Thinking that efforts to decarbonize or conserve resources will cost the same is out of step with reality: evaluations, new manufacturing techniques, and new production options require time and investment. Then the paradigm is the affordability: which solutions are possible, with an acceptable extra cost, and defining a long-term roadmap with increments.
Different solutions are possible with plastic materials: the main ones are either using post-consumer recycled content or bio sourced content. Integrating such solutions needs to be done in relation to the final applications, expected performance, availability, and cost. Usually, one replacement is foreseen to maintain design rules. But mainly, limitations, either performance or cost, could be a bottleneck. In such a case, design or manufacturing habits need to change, especially when prioritizing materials. It has a direct impact on business relationships: direct discussion with the end customer is essential for defining the best pathways to develop new, environmentally friendly products.