When talking about being acid-free, as important as the adhesive, is the carrier (or backing) of the tape.
#Double stick masking tape free#
> | View all acid free tapes here click here The conservator will be able to recommend the best adhesive and tape material for your repair. For these types of repairs we always recommend consulting with a conservator. So, as you can see, when selecting an acid-free tape you also need to make sure that the adhesive will not dry out and fail, will not turn yellow and stain your paper, that it can be removed in the future – as well as being acid-free.įor conservation grade repairs on very fragile or valuable items, it may be necessary to consider a non-adhesive tape and appropriate acid free conservation grade adhesive, like wheat starch. Acid free adhesive tapes do not behave this way. Some adhesives may release acidic gasses (called off-gassing) as they degrade causing damage to any paper stored around it. Īdhesives in standard tapes can contain acidic materials which will weaken and eventually destroy the paper it has been applied to.This is not a case of simply tearing it away, a solvent would be applied, but it does mean it can be removed in the future. An important aspect of an archival tape is that it can be removed without harming the paper, and are therefore, reversible. Non-archival tapes aren’t generally reversible. This staining can be difficult if not impossible to remove. Old non-archival adhesives can degrade, turn yellow and stain the paper they have been applied to. Archival tapes from PEL are designed not to dry out or shrink. One of the problems with aging non-archival tapes is that the adhesive will gradually dry out and fail, defeating the object of its application, the repair is no longer fixed. The adhesive is one of the key elements in a pressure sensitive tape, or gummed tape, here are the issues: There are a number of different types of adhesives that have been, and are used, on pressure sensitive tapes over the annals of history. Non-Adhesive tapes – These tapes are simply continuous strips of material that can be adhered with the user’s choice of adhesive. These are generally easier to remove (reversible) if required. Gummed Tapes – These tapes have an adhesive applied to the carrier material which usually requires water to activate the adhesive. Once applied the tape requires a little pressure to ensure adhesion. The carrier (or backing) may also have a primer applied, and sometimes a release coat to stop it sticking to itself. Pressure sensitive tape – often called self-adhesive tape (or scotch tape / Sellotape / masking tape) has an adhesive applied to the tape’s carrier material. That’s important to bear in mind, as tape can have more than one component. When we talk about acid-free tape here at PEL, we make sure that the complete structure of the tape is acid free, or to put it another way, pH neutral. To learn more about how and for what purposes Amazon uses personal information (such as Amazon Store order history), please visit our Privacy Notice.Archival Repair Tapes Hinging, Mounting & Framing Tapes Cotton & Fabric Tapes Archival Labels & Tags Packing Tapes You can change your choices at any time by visiting Cookie Preferences, as described in the Cookie Notice.
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