Budget Mountboard
A range of 1300 micron thickness boards which meet the FATG Standard level of framing.
Budget Mountboard Specification
The surface and backing papers:-
- Made from chemically treated pulp using high pH sizing and essentially lignin free.
- Buffered with calcium carbonate
- The water soluble extract 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-bourne acid for the life of the board.
The core
- Neutral
- Highly refined wood pulp, sized with an alkaline (neutral) material
- Buffered with calcium carbonate
The adhesive
- Aqueous PVA with neutral pH
- Buffered with calcium barbonate*
- Minium 3% by weight
FATG level Standard
Accelerate ageing test Tappi T.509 SU68
Years
0 pH 8.7
25 pH 8.4
50 pH 7.2
100 pH7.2
Budget meets the FATG Standard Level