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The Surface and Backing Papers
All finishes:
- Made from chemically treated pulp using high pH sizing and essentially lignin free, except for suedette which uses high light fast rayon’s
- Buffered with calcium carbonate
- The water soluble extracts are minimal i.e. chloride below 0.05%, sulphate below 0.25%. For extra defence it contains a buffer of calcium carbonate to guard against contamination by air borne acid for the life of the board
The Core:
(black, coloured and standard)
- Neutral
- Highly refined wood pulp, sized with an alkaline (neutral) material
- Buffered with calcium carbonate
(white and suedette)
- Made from essentially lignin free bleached white fibre
- Buffered with calcium carbonate
The Adhesive
All Finishes
- Aqueous PVA with neutral pH.
- Buffered with calcium carbonate
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