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Steve_s
Tinkerer
Username: Steve_s
Post Number: 23
Registered: 07-2006
Rating: N/A
Votes: 0 (Vote!) | | Posted on Saturday, January 27, 2007 - 01:53 am: | 
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Thick lens elements frequently seem to have a black coating around their outside cylindrical surface, presumably to stop light reflection/scatter, but often this is of a type that washes off when de-fungussing.
What is the best thing to replace it? It has to be a very thin layer, or the element will not fit in its housing. I have tried Indian Ink, HP inkjet ink, and slate blacking intended for antique clocks, but none of these adhere to the glass well enough. So far, the best prospect seems to be a CD-R marker pen, but like all other "permanent markers" I have tried, the ink is really a very dark blue rather than black. This may not matter too much, but are there any better options? |
Pablomartinez
Tinkerer
Username: Pablomartinez
Post Number: 28
Registered: 09-2006
Rating: N/A
Votes: 0 (Vote!) | | Posted on Saturday, January 27, 2007 - 07:14 am: |
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Thats what I use. The brand is EDDING. |
Steve_s
Tinkerer
Username: Steve_s
Post Number: 24
Registered: 07-2006
Rating: N/A
Votes: 0 (Vote!) | | Posted on Saturday, January 27, 2007 - 08:31 am: |
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Thanks Pablo. I'll give the Edding markers a try. Do they produce a true black? |
Reiner
Tinkerer
Username: Reiner
Post Number: 38
Registered: 07-2006
Rating: N/A
Votes: 0 (Vote!) | | Posted on Saturday, January 27, 2007 - 08:37 am: |
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I use a thin enamel layer. It might be too thick in some cases but I never had that as of now. Ink jet ink is definitely not resistant enough. It will bleak out when exposed to light for long periods. |
Pablomartinez
Tinkerer
Username: Pablomartinez
Post Number: 30
Registered: 09-2006
Rating: N/A
Votes: 0 (Vote!) | | Posted on Saturday, January 27, 2007 - 08:39 am: |
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Kind of black. Dark enough anyways. I do not scrub on the border. I paint the borders with dots in order to try to do a thicker layer.
Must be a better way to do it, but this is cheap and good enough. |
Chrisb
Tinkerer
Username: Chrisb
Post Number: 12
Registered: 01-2007
Rating: N/A
Votes: 0 (Vote!) | | Posted on Saturday, January 27, 2007 - 09:21 am: |
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has anyone tried grease pencil? |
Paul_ron
Tinkerer
Username: Paul_ron
Post Number: 12
Registered: 07-2006
Rating: N/A
Votes: 0 (Vote!) | | Posted on Saturday, January 27, 2007 - 03:55 pm: |
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Black magic marker is all you need to use. If you use a new pen, it will lay on a nice thick layer of ink. |
John_shriver
Tinkerer
Username: John_shriver
Post Number: 4
Registered: 12-2006
Rating: N/A
Votes: 0 (Vote!) | | Posted on Wednesday, February 28, 2007 - 08:11 pm: |
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I use Kodak Brushing Lacquer No. 4 (Dull Black). Unfortunately, long discontinued. You might find some by hunting really hard. Certainly contains ingredients known by the State of California to cause cancer! |
