Mount Types
Today’s standard materials are high quality, protecting your work for decades. If you want to be on the safe side in terms of conservation, you will want to choose mountboard of conservation or museum quality.
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Standard
Decorative Mounts
Mounts made from standard board are suitable for most common requirements. High quality works may also be presented in such a mount for a short period of time but should then be stored on conservation or preferably museum quality material.
The mountboards are buffered with calcium carbonate and are therefore not acidic, at a pH-value of 7.7 - 8.5. Mounts that comply with our standard quality are made of purified wood cellulose derived from recycled fibre.
With our standard material - Papermat White Core - the cutting edge remains permanently white.
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Conservation
Alpha Cellulose Mounts
To make pulp (cellulose), wood is solubilised in either a mechanical or chemical process. The different procedures either produce groundwood or cellulose. Groundwood contains large amounts of lignin. Paper made from groundwood therefore begins to yellow over time (the dry matter of European wood contains 35-40% lignin.) In purifying cellulose (since the late 80s, oxygen bleaching is preferred to the environmentally harmful chlorine bleaching) the damaging lignin can be eliminated from the cellulose in large part but not 100%. Buffering with calcium carbonate neutralises the remaining lignin long-term. The boards conform to DIN ISO 9706, that is, are non-ageing. The quality of conservation board made from purified cellulose, however, does not equal that of cotton rag mountboard. |
Museum
100% Cotton Cellulose
First-rate mounts are made of board that consists of 100% purified cotton cellulose, guaranteeing that they will not age and are colour and lightfast. Only around 10% of the chemicals used in the production of groundwood is used in the production of cotton cellulose. Cotton boards are the best for archiving; they can be trusted with a Rembrandt print just as with a Picasso.
We offer museum board by Crescent, the largest producer worldwide. They provide a guarantee with no time limit whatsoever.
We offer un-buffered mounts in 4 different colours. They are designed specifically for long-term storage of cyanotypes (blueprints), dye-transfer prints, colour photographs and albumin prints. |
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Applications:
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Applications:
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Applications:
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| Raw material: purified wood cellulose from recycled fibre |
Raw material: purified wood cellulose from primary sources |
Raw material: purified cotton cellulose |
pH-value: non-purified circa 7.7 purified 8.0 – 8.5
buffered 7.7 – 8.5 |
pH-value: buffered 8.5 – 9.5 |
pH-value: non-buffered 7.1 –buffered 8.5 – 9.
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Filling material and alkaline reserve:
Calcium carbonate 2 - 5%
Gluing: alum-free gluing with
synthetic sizing agent |
Filling material and alkaline reserve:
Calcium carbonate 2 - 5%
Gluing: alum-free gluing with
synthetic sizing agent |
Filling material and alkaline reserve:
Calcium carbonate 2 - 5%
Gluing: alum-free gluing with
synthetic sizing agent |
Colour: direct dye
(substantive dyestuff) |
Colour: pigment dye |
Colour: pigment dye for greatest lightfastness |
Moisture content:
4 – 8% |
Moisture content:
4 – 8% |
Moisture content:
4 – 8% |
Buffering with calcium carbonate – Buffering with calcium carbonate neutralises harmful environmental influences on the mount and your artwork. In Germany alone, many million tons of sulphur dioxide are released into the air every year. Paper and textiles are particularly vulnerable. Buffering with calcium carbonate counteracts this effect.
Mount quality from a commercial viewpoint
There is no reason to feel bad that presenting lower-priced works in a standard quality mount is inadequate.
Go to any flea market and you’ll find many photos from around 1900 on strawboard, with a mount that is made from the same material, and the whole ensemble is in surprisingly good condition.
And even today’s simple standard quality acid-free paper will protect your works much better than strawboard.
If you are offering works in a higher price range, we suggest that you choose conservation quality mounts to ward off any concerns about conservation.
From a certain price range upwards you should opt for museum quality material. This is particularly important for the backboard, with which your work has the most contact. |
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