This is topic cleaning advice, glass bead screen, mould in forum 8mm Forum at 8mm Forum.


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Posted by Mike Spice (Member # 5957) on February 14, 2018, 10:27 AM:
 
Some months ago I tried to give away a projection screen.

Having been fortunate receieving a Sankyo sound projector recently, I shall be using the screen from the time as I hope to now buy some sound films, just one or two, for old times sake.

The screen has a few brown mould stains on it, not bad enough to ruin it, but enough to annoy.

Any tips for a safe way to try and clean them off would be appreciated. It seems to be a type of glass bead screen.

I will go and edit the screen in the for sale section to withdraw it.

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Posted by Clive Casey (Member # 6202) on February 14, 2018, 11:23 AM:
 
Hi Mike, From my past experience of glass beaded screens ( and I must admit it is a lot of years ago) you can't clean them. I hope some one knows better than me.
Goo luck
 
Posted by Mike Spice (Member # 5957) on February 14, 2018, 11:27 AM:
 
Yup, I think you are right, I might just try a very slightly damp cloth, and very lightly...
Fortunately it's not all over the screen, I have nothing to lose.
I have so far, thought better of using any 'products' on it.

But, as you say, someon emight know different.......
 
Posted by Steve Klare (Member # 12) on February 14, 2018, 11:36 AM:
 
Back about ten years ago there was this epidemic of people putting movie screens out on garbage day: I grabbed a few of them. I even started putting the worst ones out in my own garbage as I found better ones.

One of the ones I got was glass beaded and it had yellowed quite a bit. People here recommended I bleach it by putting it outside in direct sunlight. (This was complicated: this screen came out of my neighbor's garbage!)

I can't promise this will help you, but it costs nothing to try.

Update!

I just got an E-mail from Steve Osborne!

quote:
Just take it outside and put it at an angle and slowly pour bleach over it.
(This sounds like a more active approach to me.)
 
Posted by Maurice Leakey (Member # 916) on February 14, 2018, 12:28 PM:
 
It's true that glass beaded screens, one of the very best surfaces, do turn yellow with age.

A few years ago, on the death of a friend, I was given his movie equipment which included an expensive (in its day) Self-Recta beaded screen in a handsome wooden carry-case. It was very similar to one shown by Mike.

But the surface was yellow, no amount of cleaning improved it. So out it went in the trash.
 
Posted by David Hardy (Member # 4628) on February 14, 2018, 04:19 PM:
 
I think its still worth trying to bleach it again via natural sunlight outdoors though. Nothing to lose everything to gain.
[Wink]
 
Posted by Dominique De Bast (Member # 3798) on February 14, 2018, 04:38 PM:
 
Has anyone tried this ?

https://image.jimcdn.com/app/cms/image/transf/none/path/sda0c94d89b4b9f1b/image/ib7ef3c939d680ba2/version/1460217446/image.jpg
 


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