PCR Beyond the Sustainability Conversation
Manufacturers are already willing to explore PCR materials but might be unsure of how well it will perform in their products when compared to their current resins.
Engineers, R&D teams, product development, and procurement teams constantly question the durability, processability, quality, consistency, and supply reliability of PCR solutions. While these concerns are valid, recent developments in recycling, sorting, and compounding technologies have greatly improved the capabilities and performance of PCR options.
What Does "Good Performance" Mean?
Before comparing your current materials to recycled resins, it’s important to define what a “good performing” material means.
Key Questions to Consider
- What properties are most important in your application?
- Is the application structural, cosmetic, or both?
- What environmental conditions will the product encounter?
- Are there regulatory or compliance requirements for the product?
Key Takeaway: The goal is not to find a one-to-one replacement, but to determine whether a PCR option will provide acceptable performance within the application’s design.
Performance Characteristics of PCR Plastics
Key Questions to Consider
- Is outdoor exposure expected?
- Will chemicals or cleaning agents be present?
- What is the expected product life?
- Will the product experience related impacts?
Processing Considerations: Will it Run on Existing Equipment?
One of the most common concerns among manufacturing teams is whether PCR plastics requires major processing adjustments.
Common Processing Methods:
- Injection molding
- Blow molding
- Extrusion
Many PCR PP products are developed as drop-in solutions intended to run on existing equipment with minimal disruption.
Areas to Monitor During Trials:
- Melt flow behavior
- Cycle times
- Part appearance
- Shrinkage
- Color consistency
Practical Recommendation: Pilot trials are often the fastest way to determine compatibility and identify any required processing adjustments before scaling up production.
The Biggest Question: Quality Consistency
Why Consistency Matters
Historically, one of the biggest challenges with post-consumer recycled plastics (PCR plastics) were the lot-to-lot product inconsistencies and supply uncertainties. Manufactures would order some PCR plastic that performed great, and received a completely different type of resin the next time around.
What Has Changed?
Leading PCR suppliers, like Blue Polymers, have strategically invested in:
- Efficient feedstock qualification processes with their recycling collection partner, Republic Services
- Updated sorting technologies
- Quality testing
- Traceability and documentation enhancements
These improvements have paved the way for a more consistent supply and material quality gap that had existed in the recycled material industry for far too long.
Questions to Ask Your PCR Supplier
When evaluating materials, manufacturers should ask:
- What feedstock sources are used?
- How is material testing performed and how frequently?
- How is lot-to-lot consistency monitored?
- What documentation is available?
- Are there FDA-compliant grades in your portfolio?
These answers will reveal more about the material reliability and partnership expectations should long-term material solutions be in consideration.
Key Takeaway: Successful PCR Plastic Adoption Starts with the Right Questions
The question is not whether PCR plastic is a drop-in solution to your virgin materials, but whether it can be effectively used in certain applications to meet various sustainability goals for the customer, brand owner, or OEM.
By asking questions about the performance value, long-term supply and quality consistency, and available options, manufacturers can make more informed decisions about where PCR plastics can best within their business operations.
