Safari & Preppy, seal' Mechanism test.

[ajingko]

I tested sealing mechanisim of two pens. Lamy Safari & Platinum Preppy.

I filled the ink and checked the amount. And Let stand for a month(30days) with the lid up.

When using cartridges, There was no difference compared to a month ago.

But using converter, A small amount of ink has evaporated.

May be thats because the converter seems to have a slightly weaker sealing power than the cartridge I think.

Anyway, Lamy & Preppy have great cap-sealing performance.

I hope this could make Safari & Preppy users more happy.

(sorry for my English I used translator)

 

 

 

[Anne-Sophie]

Thank you, it is a very helpful post.

[jchch1950]

The sealing of both pens  is very good, almost no ink evaporation. After one month  how the pens start writing? 

[Honeybadgers]

One month is kind of where I would say any good cap seal should reliably hang out. I've got dozens of pens that can do that.

 

The platinum slip-n-seal is advertised to work for something like one or two years.

 

So a 6-12 month continuation of this experiment would interest me.

[ajingko]

18 hours ago, jchch1950 said:

The sealing of both pens  is very good, almost no ink evaporation. After one month  how the pens start writing? 

It was as soft as it was an hour ago.

[TSherbs]

Interesting! Thank you.

[1nkulus]

On 7/22/2021 at 8:28 PM, Honeybadgers said:

One month is kind of where I would say any good cap seal should reliably hang out. I've got dozens of pens that can do that.

 

The platinum slip-n-seal is advertised to work for something like one or two years.

 

So a 6-12 month continuation of this experiment would interest me.

I can do better, try close to 4 years and counting.

 

I have a Plaisir dedicated to this experiment. The pen is stored in a pen tray in a drawer in the study.

 

I write half a page every quarter and still on the initial cartridge.

It came about as I had no use for the pen and instead decided to test it's 'slip-n-seal' attribute.

The last check was in June 2021.

[TSherbs]

1 hour ago, 1nkulus said:

I can do better, try close to 4 years and counting.

 

I have a Plaisir dedicated to this experiment. The pen is stored in a pen tray in a drawer in the study.

 

I write half a page every quarter and still on the initial cartridge.

It came about as I had no use for the pen and instead decided to test it's 'slip-n-seal' attribute.

The last check was in June 2021.

No hard starts, either?

[1nkulus]

10 minutes ago, TSherbs said:

No hard starts, either?

On one or two occasions, 10-15 secs dip in water was needed.

It could be due to temp. fluctuations in the study or when the pens were stored in a different location.