Tuesday, April 17, 2018

The Ravages of Time

Time and tide, they wait for no man.
The clock ticks for mechanical pencils too.

Warning – Disturbing Content. Readers of a delicate disposition may require emotional guidance and support. Please be seated before continuing on.

One thing is for sure, none of my pencils are getting any younger, and some of them are not aging well. Collectors of vintage pens and pencils are well used to corrosion, tarnishing, brassing, flaky plating and all manner of metallic ills, as well as shrinkage, cracking, hardening and so on of rubber and plastic. The moment a new mechanical pencil is manufactured it starts its journey to becoming a future vintage pencil… if it survives that long.

As well as restarting this blog I have also recently been reviewing my collection with the goal of rationalizing it to the things I really like. This review of my collection has made me realize just how much degradation is going on, and so I share with you some sad stories and sorry sights.


My first encounter with aging of a modern pencil was a while ago my Sensa Carbon Black Mechanical pencil.
After about 5 or so years in storage I noticed that the plasmium grip was deforming under the force of gravity. The plasmium gel was being dragged down by gravity and pooling on the lower side of the grip. After another few years droplets of oily liquid started to form on the outside of the grip as if some liquid was migrating through the outer skin of the grip. Eventually after 10 years or so the outer grip skin was very tacky and the gel pimples burst with gel oozing out of the little tears. Sensa had ceased business, and it’s doubtful they would accept any warranty claim after such a period, so my sticky oozy Sensa pencil went into the rubbish bin. That was a fair few dollars gone.

My next encounter with modern aging was much more disturbing.

I really liked my Lamy Dialog 1 ballpoint pen. I always meant to get around to reviewing it but never did. After about 7 years I noticed some discolouration on the body. Small dark spots, that you could feel with your fingernail. The Dialog 1 is Titanium PVD coated metal and somehow the titanium coating seemed to be corroding, which seemed implausible. Some research into PVD coatings did reveal that the thin coatings used on decorative objects like jewelry are “porous” and much thicker coatings are required for maximum corrosion resistance. I don’t know what’s going on with my Dialog’s coating, whether it’s some sort of poor metal substrate cleaning at the time of coating, coating porosity, or biological attack from a microorganism that has got into the metal structure through the so called porosity. In any event my Dialog 1 is no longer an attractive premium writing instrument. Lamy customer services have been silent.
Lamy Dialog 1 degradation
So annoying!
PVD coatings are very thin and the forums of jewelry and watches have many stories of how they wear off so I was not keen to try any metal polishes on the titanium finish, but after taking these pictures I thought, "What the heck? What have I got to lose?" So, I tried a proper metal polish on the marks. Well after several goes the marks are 99% gone. I say 99% because where most of the dark spots were there is still a tiny little speck the size of a pin prick left where they were. So small you  wouldn't notice if you weren't specifically looking with the knowledge of history. I will see if this is a long term fix or if the corrosion will grow again. So far the polishing does not appear to have affected the PVD coating.

Here’s another disappointing one that hasn’t lasted. Ten years ago when I got it, this Platinum Mistake Double Action multi pencil was white, but now it is a creamy yellow, and I can assure you it has been stored in the dark, away from sunlight and UV. You won’t be able to see them in the picture, but the lower half of the body also has two hairline cracks starting along its length.

Now for the biggie. When I started this blog I declared my dislike of rubber grips, but constant contact worked like some sort of psychotherapy and I came to begrudgingly accept them. That was a mistake, I should have stayed a hater. If you go searching the forums of camera, optics, hunting and nautical people you will come across lots of discussions about rubber coated and rubber armoured cameras, binoculars, telescopes, rifle scopes and the like, going all soft and sticky over time. Then there’s the kitchen utensil, mobile phone, IT and gaming forums… it’s a sticky gooey rubbery mess out there. I too have experienced this with my reputable Japanese brand telescope's rubber armour becoming a soft sticky mess over a 10 – 15 year period. Bushnell optics even has a FAQ for your binoculars going all sticky, and requests that you contact them. Basically with natural rubber it is a process sort of like it returning to its original latex gel liquid state, and a similar degradation process with many synthetic rubbers. Complex long chain molecules break into smaller sections, plasticizers and lubricants migrate to the surface and so on. Anyway, there’s nothing you can do about it, it just happens, although the circumstances of use and storage can affect the timescale.

Down in my mechanical pencil storage department you don’t have to look too far to find a soft sticky wet feeling rubber grip. There is a vast range of different service lives for different synthetic rubbers. From my experience, ten years seems to be about the average time for degradation becoming obvious. If you don’t see any changes after 10 years then it is probably one of the silicone or other synthetic rubbers with extremely long service lives.

Here’s two Faber-Castel Grip Plus mechanical pencils, both obtained 12 years ago at the same time, both stored side by side in the same container. Visually they look nice, but when you pick them up one rubber grip is noticeably sticky and leaves a residue on your fingers. The other is much less tacky and does not leave a residue but is clearly starting to degrade like its cousin. Of course who knows what their actual date of manufacture was.

Maries Leadholder only lasted a couple of years in my office drawer before it started becoming disgustingly sticky and I relocated it to the rubbish bin.

To be fair, most of the rubber gripped writing instruments are in the economy and low price range brackets, so the manufacturers probably only think of them as needing to last a few years, and they certainly would not be thinking about future classic vintage pencil status.

Related to this rubber issue is the degradation of presentation cases. PVC is a very common and useful hard plastic used to make all sorts of things including roof gutters, house cladding, LP records and helmets but if you add plasticisers to it, it becomes very flexible and we then often start calling it vinyl and making erasers, clothing, furnishings and so on. The thin flexible vinyls tend to breakdown over time and some seem to become susceptible to biological attack from mould. I imagine it’s related to the particular plasticisers and additives used in the plastic formulation.

Here is my Pilot KICPA case. It was very slightly tacky when I first bought it, but now things have gone further. It is still only slightly tacky to the touch, but the case is a very strong spring loaded one and you have to grip it quite firmly to open it, which means you press the soft plastic covering, and sometimes the vinyl or PU or whatever plastic it is sticks to your fingers and comes off its fabric backing.

One thing of genuine concern though is that virtually all mechanical pencils with a ratchet lead advance system have some form of lead retaining rubber ring or similar at their tip. Let’s hope that they use one of the good quality very long service life rubbers for that!

And if you think I am getting bent out of shape over all of this, at least I’m not like the old floaty pens from the 70’s or so. Virtually every one of them I have seen in real life is bent to one degree or another. Releasing moulded in stress over time… all those floaty ships, cars and beautiful ladies… all warped.

9 comments:

Jimmy Simpson said...

I am thankful that most of my collection (Pentel P200 family - nimrodd.net) are all hard plastic. The only things I usually have to worry about are, as you said, flaking plating on the clips and hardening erasers.

I have encountered the sticky rubber on some of my tools.

2nd_astronaut said...

Indeed, not for the faint-hearted :-D

Naming a product "Mistake" might be a hint from the manufacturer ;-), and rubber grips *are* evil (especially the hypertrophic ones like Dr. Grip or Gel or Plasmium) ...

But the Lamy *is* disturbing. Using the word "Titanium" virtually means "lasts forever" to a customer, so it should be resistant to alien slime and other things usually attacking pencil collections. Let's see if Lamy service wakes up.

penmuseum said...

Bummer to see that LAMY suffering that kind of corrosion. Yikes! I wonder if you were just unlucky to get a faulty example, as I've never seen complaints of this. Even just searching on the Dialog 1 user photos doesn't reveal any showing damage.

Any rubberized coatings have a limited lifespan, some worse than others. I've seen this happen to some... and in the 1990's the rubberized coatings were still new, subject to experimentation and optimization. However, my rOtring Trio from the late 1990's has some kind of rubberized layer that's still in excellent condition (I think it may just be a sleeve, instead of a coating).

Jeff_290 said...

I was reviewing some of your previous pencil reviews and found you had recently returned.... Thanks, and welcome back.

Kiwi-d said...

Hypertrophic Dr Grip... now that's some good writing.

The Lamy experience has really made me think twice about any future purchases of PVD coated pencils, which probably means most rhodium, palladium, platinum, titanium, some gold etc.

I suppose one could enquire about the type of synthetic rubber before purchasing. The rubber o-ring and gasket manufacturers list shelf lives of 5 to 50 years depending on which specific rubber... clearly a number of writing instrument manufacturers use nitrile and other short life rubbers. Well, they are some of the cheapest ones, so only to be expected. To be fair, as said, I've got plenty of other pencils with rubber grips and coatings from the same era and they are not degrading at all.

Time Waster said...

yeah I have about 300 pencils in tool boxes and tackle boxes. No damage but live in a cooler climate in Wisconsin. My Lamy 2000 and my Lamy Safari are in good shape but they are not all metal. The worse thing to happen to my everyday carry a Black Pentel Kerry is the clip broke off for good. Still useable though I used to have problem with Koh-i-noor the red plastic 2mm leadholders would break in half so I started using Staedtler technicos instead or a Alvin promatic. I own like 23 technicos recently started getting into 5.6mm pencils for drawing stuff like they alot with 2-B lead.

B2-kun said...

Great posts. Now I am afraid of what I will find when I inspect my pencil collection now that several items are getting past the 10 year mark in my possession.

Anonymous said...

I have found that a little Borotalco cures many cases of sticky rubber.

Recently I used it on a Rotring Tikky whose rubber grip had become a sticky mess, with good results.

Worth a try before thrashing an otherwise good pencil.

kiwi-d said...

Yes, various forum users talk about using talc, etc. It masks the symptoms for a time, but does not cure the disease. Still, it may prolong life for a fair while, and what have you got to lose? :D