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Ivory Powder (8628) Mountboard Sheets

All Conservation mountboards fully comply to Fine Art Trade Guild Conservation level (Level 2).

  • High-quality alpha cellulose using pH sizing and lignin-free, except for Metallics which the surface papers are not acid-free.
  • Blue wool scale (BWS) minimum rating 3+.
  • Individual BWS ratings are marked on the reverse side of every sheet.
  • Buffered with calcium carbonate, minimum 3-5% by weight.
  • 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.
  • Passes the Silver Tarnish Test and Photographic Activity Test.
  • Aqueous PVA adhesive with neutral pH.
  • Accelerated ageing test: TAPPI T.509 SU68
    • Unaged – pH8.9
    • 100 years – pH8.9
    • 200 years – pH8.9
    • 300 years – pH8.9


Board thickness1.4 mm
Sheet width1120 mm
Sheet height815 mm
Sheet price£ 9.54
Ivory Powder (8628)

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