Addressing Problematic PET, PETG and PVC Shrink Sleeves on Food and Beverage Bottles

The document identifies PET, PETG, and PVC shrink sleeves as priority problematic plastics in South Africa because they disrupt the PET bottle recycling process. It argues that substituting these materials with floatable polyolefin sleeves (PE or PP) allows for effective separation via float-sink mechanisms, thereby increasing the number of bottles successfully recycled. While early adopters like Woolworths and SPUR Corporation have successfully transitioned, the report notes that market-wide adoption is hindered by cost premiums and technical adjustments, though these are mitigated by collaboration through the South African Plastics Pact.

• PET, PETG, and PVC shrink sleeves on PET food and beverage bottles are identified as priority problematic and unnecessary plastics in South Africa, representing the largest share by weight of such items placed on the market by South African (SA) Plastics Pact members in 2024.
• These specific shrink sleeve materials disrupt the PET recycling process because they have similar densities to PET bottles and sink during the sink-float separation process, leading to contamination or the total rejection of technically recyclable bottles.
• Material substitution using floatable polyolefin sleeves, such as polyethylene (PE) and polypropylene (PP), is the most viable near-term solution as they are compatible with existing PET recycling processes and can be separated through float-sink mechanisms.
• Financial costs are a primary barrier to adoption; for example, Woolworths initially faced a 50% price premium for PP shrink sleeves compared to PETG, although this has since reduced to approximately 20% as demand scaled.
• Technical barriers to transitioning to polyolefin sleeves include the need for equipment recalibration, changes to printing plates, or modifications to bottle design, such as increasing the mass of the bottle as experienced by SPUR Corporation.
• The South African Plastics Pact serves as a critical enabler by providing a platform for knowledge sharing and collaboration between brand owners, label manufacturers, and recyclers to reduce uncertainty and accelerate the transition.

APA

Chitaka, T. (2026). Addressing Problematic PET, PETG and PVC Shrink Sleeves on Food and Beverage Bottles. GreenCape. https://greencape.co.za/wp-content/uploads/2026/04/Case-Study-Addressing-Problematic-Shrink-Sleeves-on-PET-Bottles-150dpi.pdf

Chicago

Chitaka, Takunda. Addressing Problematic PET, PETG and PVC Shrink Sleeves on Food and Beverage Bottles. GreenCape, 2026. https://greencape.co.za/wp-content/uploads/2026/04/Case-Study-Addressing-Problematic-Shrink-Sleeves-on-PET-Bottles-150dpi.pdf.

Wikipedia

{{cite report |last1=Chitaka |first1=Takunda |title=Addressing Problematic PET, PETG and PVC Shrink Sleeves on Food and Beverage Bottles |publisher=GreenCape |date=2026 |url=https://greencape.co.za/wp-content/uploads/2026/04/Case-Study-Addressing-Problematic-Shrink-Sleeves-on-PET-Bottles-150dpi.pdf |access-date=17 August 2026 |via=Climate Insights Directory}}

BibTeX

@techreport{chitaka2026addressing, author = {Chitaka, Takunda}, title = {{Addressing Problematic PET, PETG and PVC Shrink Sleeves on Food and Beverage Bottles}}, institution = {GreenCape}, year = {2026}, url = {https://greencape.co.za/wp-content/uploads/2026/04/Case-Study-Addressing-Problematic-Shrink-Sleeves-on-PET-Bottles-150dpi.pdf}, urldate = {2026-08-17}, note = {Indexed by Climate Insights Directory} }