Blackcore
Blackcore is available in eighteen colours and two thicknesses 750 micron and 1400 micron. See the mountboard selector for colour choice.
BlackCore Specification
The surface and backing papers
All finishes
- Made from chemically-treated pulp using high pH sizing and lignin-free, except for Metallics which are not acid-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.
The Core
- Neutral
- Highly-refined wood pulp, sized with an alkaline (neutral) material.
- Buffered with calcium carbonate.*
The adhesive
- Aqeous PVA with neutral pH.
- Buffered with calcium carbonate.*
- Is plasticiser-free.
* Minimum 3% by weight
Accelerated ageing test
TAPPI T.509 SU68
0 years - pH8.7
25 years -pH8.4
50 years -pH7.2
100 years -pH7.2
BlackCore meets the FATG Standard level