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P90 is an archival tape used in the attaching of pictures into frames and book binding. It is free from wood pulp and has a pH of between 8.5 & 7.8. & buffered with calcium carbonate.
The adhesive is water soluble and therefore is removable if soaked.
It is generally not very sticky so that it can be easily removed without damaging any artwork at a later date. It is then necessary in some instances to use relatively large quantities to be sure of a substantial hold.
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