Larson Juhl (Arqadia) Extra Thick and Jumbo Mountboard
Conservation and Whitecore Specification
The surface and backing papers...made from chemically-treated pulp using pH sizing and lignin-free - Blue wool scale (BWS) minimum rating 3+ Individual BWS ratings are marked on the reverse side of every sheet. 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...High-quality alpha cellulose. Lignin-free and bright white throughout. Buffered with calcium carbonate.*
Passes the Silver Tarnish Test and Photographic Activity Test.
The adhesive...Aqeous PVA with neutral pH - is plasticiser-free Buffered with calcium carbonate.* * Minimum 3% by weight
Accelerated ageing test TAPPI T.509 SU68 Years unaged -pH8.9 | 100 -pH8.9 | 200 -pH8.9 |300 -pH8.9
All Arqadia Conservation boards fully comply to FATG Conservation level. Whitecore boards meet FATG Standard level
IMPORTANT transit damage to mountboard We endeavour to pack mount board in a way that protects it during delivery to you. However, on occasions, a small amount of damage occurs to the board edges or corners. To prevent the need to replace damaged mountboard and the inconvenience it causes to you, we have reduced the price so it is equivalent to a board size that is 30mm smaller all the way around. IMPORTANT delivery limitations Mountboard delivery is not available to postcodes IV, HS, KA27-28, KW, PA20-49, PA60-78, PH17- 26, PH30-44, PH49-50, ZE; BT, IM, and TR21-25.