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Thanks Greg, interesting idea to use linseed oil.  I guess it would take 
some time and it would all need to be in a sealed container to prevent 
drying out of the oil.  Thanks also for the other discussion list links.

Tim.



----- Original Message ----- 
From: "Greg Schmitz" <[log in to unmask]>
To: <[log in to unmask]>
Sent: Wednesday, March 27, 2019 6:04 PM
Subject: Re: [ARSCLIST] Linseed Oil tape contamination


> Tim,
>
> You're looking for a solvent that might remove at least some of the dried 
> and hardened linseed oil but not destroy the tape base. The first thing 
> that comes to mind is linseed oil. Not sure how effective it would be on 
> dried oil, but it might be a starting point. I've used oils to remove oil 
> based adhesives from lots of surfaces.
>
> --greg
>
>
>
> On 3/27/19 1:58 AM, Greg Schmitz wrote:
>>
>> Tim,
>>
>> Ugh, sounds awful. Have you thought about asking about your tape dilemma 
>> on a conservation list like ConsDistList 
>> <http://cool.conservation-us.org/byform/mailing-lists/cdl/instruct.shtml>? 
>> You might also check the CoOL archives <http://cool.conservation-us.org/> 
>> or equivalent sites in other countries. It sounds like you've got the 
>> kind of mixed environmental contamination problem(s) frequently faced by 
>> conservators of various stripes. Reminds me of the map that was 
>> eventually retrieved, covered with oil and solvents, from the bottom of 
>> an elevator shaft at a very famous library in NYC.
>>
>> --greg schmitz
>>
>>
>> On 3/27/19 12:29 AM, Tim Gillett wrote:
>>> Hi,
>>>
>>> I've been given a few acetate 7" 1/4" tapes which by the smell of them 
>>> (as a child I used to oil my cricket bat with it) appear to have linseed 
>>> oil on them, to varying degrees and probably there for many years. The 
>>> oil has dried to a glue. Sand has adhered to the tapes in spots. The 
>>> tapes have been stored in cardboard boxes which are partially soaked in 
>>> the oil as if having sat flat in a shallow puddle of oil.
>>>
>>> General (non tape) instructions I found online mentioned removing 
>>> linseed oil with acetone and ethanol as solvents. I applied some acetone 
>>> to a short, blank section of tape and the tape was dissolved almost 
>>> instantly. Does anyone have experience with this problem?
>>>
>>>
>>> Thanks,
>>>
>>> Tim Gillett
>>> Perth,
>>> Western Australia
>>>
>>> ---
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