Castello cardboard

Top quality cardboard produced from 100% pure cellulose. Solid two-ply board, dark grey with white inner side. Used to produce storage products for the most valuable collections.

• Tektura Castello:
  - ISO 16245 type A and PAT certificates
  - 100% cellulose
  - colour: dark grey with white inner side
  - pH > 7.5
  - alkaline reserve > 0.4 mol/kg
  - Kappa number < 5
  - water absorbency:  Cobb60 < 25 g/m2
  - no dye migration
  - no optical brighteners
  - grammages: 600, 800, 1100 and 1400 g/m2