There are three main types of Mount boardSTANDARD, CONSERVATION and MUSEUMSTANDARD: Unlike some other board our Standard boardis produced to a neutral pH specification.Made of three layers, the backing paper is acidic freeideal for posters, prints, photographs, textiles, virtually anysubject that does not need conservation framing.Darac STANDARD: (Silver) The nearest to conservation boardMade of three layers, the core and backing have beenchemically purified and the cover paper is produced to aneutral pH specification.A pure white (that stays white) core, that enhances the appearance of any subject, giving confidence and protection against acidic contamination. Available with Black Core, a striking acidic free solidblack core and backing creating a black bevel giving anadded dimensional look.CONSERVATION: (Gold) A 100% solid board Chemically purified board from which all potentiallyharmful substances have been extracted. Buffed withcalcium carbonate to protect against acidic elementswithin the environment.Fade and bleed resistance with solid colour bevel, thisboard is suitable for framing anything of financial orsentimental value, original art, antique, rare documentsand museum quality work.MUSEUM: (Platinum) A solid
board made totally from a non acidic 100% cotton fibre. A solid colour throughout. The very best protection available, non-acidic, bleed,scuff and fade resistant.Used by museums and the discerning collector, suitablefor preservation of original artwork, fine prints, preciousdocuments and heirlooms.