Mylux Vault Mylar 12" Vinyl Record Outer Sleeves

Crafted from genuine, ultra-clear BOPET (Biaxially-Oriented Polyethylene Terephthalate), the Mylux Vault delivers protection above and beyond standard polypropylene outer sleeves. This is the chemically similar to the archival-grade BOPET commonly sold by DuPont un the Mylar brand. Prized by serious collectors and previously only available from specialist US manufacturers – now engineered specifically for 12" vinyl and sold in Australia! While everyday polypropylene outer sleeves inevitably wrinkle, cloud, and off-gas over time, Mylux Vault BOPET is engineered for eternity. It guarantees zero degradation and no yellowing, so the album jacket underneath stays as vibrant and pristine in fifty years as it is today. At a substantial 4 mil (approx. 100 micron) thickness, this is our heaviest-gauge sleeve – completely non-stretchable and built to withstand the daily handling that destroys ordinary outer sleeves. It holds its rigid, high-clarity shape to defend gatefold and single jackets against ring wear, seam splits, spine creasing, and corner dings on the shelf. Note: This is the No Flap version – an open-top sleeve for collectors who prefer a traditional slip-on fit, want to combine it with their own inner sleeve system, or need fast access when archiving large collections. Looking for a self-sealing option? See our Product Features: BOPET Mylar: 100% acid-free, chemically inert, and crystal clear. Heavy-Duty Protection: Impenetrable defence against moisture, dust, ring wear, and handling damage. Zero Degradation: Guaranteed to never yellow, cloud, stretch, or stick to your album jackets. 4 mil / 100 Micron Thickness: Our thickest vinyl sleeve – rigid and non-stretchable for maximum jacket protection. Open-Top Design: No flap for quick insertion and a traditional slip-cover fit. Decades of Archival Life: Museum-grade material engineered to outlast your collection. Product Specifications: Material 4 Mil / 100 Micron BOPET Archival Polyester Product Dimensions 32.8cm x 32.8cm Seal Type No Flap (Open Top) Pack Size 25