#Polypropylene Sleeves

Archival Art Sleeves: Acid-Free Polypropylene vs Vinyl Safety

Innerspark.us – Archival art sleeves must be made of acid-free polypropylene or polyester to ensure long-term preservation, as vinyl (PVC) releases harmful plasticizers that degrade artwork over time.…

Monday, November 9, 2026 | 2:18 AM