These museum cartoons are made from the finest 100% cotton fibers and meet the strict specifications of Fine Art Trade Guild and PPFA *** (1st class) for 100% cotton museum cartons.
FEATURES
- 100% cotton fibers
- Identical color of the 2 sides and of the inner heart
- Traditional layered arrangement
- Buffered with calcium carbonate
- Naturally free from acid elements and wood fibers
- Complies with the PPFA and FATG standards
- They meet the requirements of the photographic activity test (PAT test)