Metallic Mountboard
Metallic mountboard comes two colours, gold and silver.
Metallic Specifications
The Surface paper:
The Adhesive:
- Aqueous PVA with neutral pH
- Buffered with calcium carbonate*
- Is plasticiser free
The Backing paper:
- Made from chemically-treated pulp using high pH sizing and lignin-free
- 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
- *Minimum 3% by weight
Accelerated ageing test:
TAPPI T.509 SU68
0 years - pH8.3
25 years - pH 8.2
50 years - pH 8.0
100 years - pH7.7
Metallic fully comply to Fine Art Trade Guild Standard level.