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Posted 11 April 2020 - 23:02
As with all pens that degrade, there may be no hope 😭😢
Posted 12 April 2020 - 02:34
Short answer is yes, but some colors are more resistant than others. Some colors are much more succeptable. Black is recognized as the safest color.
Posted 12 April 2020 - 02:49
Posted 12 April 2020 - 04:04
Usually, as I understand it, the end of the pen changes from the original marbled color to translucent, which is the signal that disintegration might begin at any time. I have an otherwise lovely Doric II vac filler with this problem.
Also, apparently, the process of disintegration emits a gas that can cause bad effects on other celluloid pens that are close by, so if you have such a pen don't store it in a closed space with other such pens.
Posted 12 April 2020 - 04:46
Are the Eversharp more susceptible than other celluloid pens? The Parker vacumatics don’t seem to have this problem, except the Ripleys. Does anyone know if the Italian pens from the 30’s ha e this problem.
I am at a loss what is considered an open box or how to keep the rest of my celluloid pens safe. Any recommendations would be appreciated.
Posted 12 April 2020 - 14:17
Yes, many other brands have the exact same problem. I have one pen which did not discolor in any way, but it crumbled at the end when I took a polishing cloth to it. But I do agree that normally the celluloid will become a "more pale" color as a sign of failure in the future. How far in the future? Hard to say, I have heard of some that limped on for over a decade, and others that went dramatically bad in months.
Posted 12 April 2020 - 14:36
I keep the pen in a converted wooden cigar box with matte board trays. I was worried about the cedar, as Syd had mentioned potential out-gassing from wood. Looking through Richard Binder’s site, I see he has written about cedar boxes. I am going to drill a few discreet holes into the boxes for venting.
Posted 12 April 2020 - 15:00
When celluloid starts its degradation process (at a faster pace than normal) there is not much you can do about it.
It is likely that the particular batch of celluloid was not cured as accurately as others.
(for reasons that are not well known, lighter colour celluloids seem to be more unstable than darker)
What you need to do is store it in a open box and far from other celluloid pens.
The out-gas is nitric acid, which can worsen the degradation itself if kept in a confined space, corrode metal trims, and spread the degradation to other nearby celluloids.
I have an Omas in celluloid which is suffering from this problem (there is some noticeable warping in the celluloid body and the brass ring on the final has turned green from oxidation.
What I do is use it and store it in a cardboard box without the lid, this seem to have slowed down the degradation.
Unfortunately the celluloid degradation seems to be affecting also the inside of the pen. I have found that if leave the barrel full of water with time the water inside turns yellow...
Before I became aware of this I used the pen and filled it with JH Midnight blue, the ink in the bottle has now changed colour and is now a sort of purplish blue. (I assume the ink might have been affected by the acid, I now use this ink only for this pen).
So be careful when filling it...
On the other hand, since it's likely to die earlier than other pens I own, I use it more...
Posted Today, 11:49
Edited by ihimlen, Today, 11:53.
Posted Today, 14:40
Im quite surprised to see this on the Green coronets, first time Ive ever seen this on these pens (I did see this on some 2nd ten Dorics in shell celluloid, mostly gold shell and on some Pacemakers). I guess this has a lot to do with the curing time of celluloid and the fact that the shell celluloid was formed by tubular wrapping and then the ends (cap/barrel) were formed by applying heat with the end plugs solvent welded in place. Some batches of celluloid may not have cured properly or too much heat (for too long) may have been applied on some pens which was not evident at the point of manufacture but which resulted in slow crystallisation and gradual decombobulation over the years. Thats my theory on these at least...
I was very disappointed when I saw the pen. I thought primarily Doris had this problem. .
I sent the pen out for repair. The damage was only at the end and not down onto the barrel. The end is being re-built. I will post pics of the repair when I get it back.
Also tagged with one or more of these keywords: coronet, eversharp
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