When Did Montblanc Stop Adding Sc21 To Its Inks?

[makris]

I recently got two bottles of MB ink with SC21 printed on the box along with 39100, one in emerald green and one in ruby red.

 

Could someone please tell me about how long ago these might have been produced?

[______Zaphod_Beeblebrox]

Was there no date printed on the box? Like Aug 2019 for example.

[FredRydr]

What is SC21? An octane additive?

 

Fred

[jsolares]

I recently got two bottles of MB ink with SC21 printed on the box along with 39100, one in emerald green and one in ruby red.

 

Could someone please tell me about how long ago these might have been produced?

 

Probably 2008-2009 at the latest, i think that's when they changed the bottle and ink formulations.

 

What is SC21? An octane additive?

 

Fred

 

Cleaning additive.

[makris]

Thank you for the information...

[Pen Nut]

SC = Supercleaner. Had a bottle of red with this on the box. It old and, if I recall right, has a slightly larger capacity (about 5ml) than the round boot bottle that followed.

[Pen Nut]

Age wise mine bottle was a lot older then 2000 era. Looked very 1980's or 90's to me.

 

bit more info here

 

https://www.fountainpennetwork.com/forum/topic/42012-super-cleaner-sc21/