The Quality Seal on each individual product packaging is 3L's promise and your guarantee for a great and thoroughly tested product.
• Acid free – No weakening of paper or top-coating of photos
• Archival safe – No reaction with typical craft materials like photos, paper and cardstock
• Acrylic based adhesive – No bleeding through paper, or Rubber based adhesive – High flexibility
• Lignin free – No yellowing of paper
• ISO 18916 – PAT – Photographic Activity Test, tested and approved
• ISO 18932 – Imaging materials – adhesive mounting systems, aging tested adhesive