I recently bought 3 outer boxes of NOS tape manufactured by Racal Zonal in September 1979. Zonal RZ. Ten reels per outer box. All sealed, unused, unopened. Two boxes were fine but one box ( ten tapes ) must have been kept in different conditions because each tape box has brown/ reddish stains. Sometimes just inside the box on the hinged section, sometimes more widespread and also outside the box. I think this is sometimes called "foxing".
I understand it is not possible to get rid of it and it is a type of mould. My concerns are :
- does it spread or now that the boxes are in a different environment, will the problem cease ?
- does it cause respiratory harm ?
- now that the tapes are no longer in their sealed plastic bags, will they be harmed by it ?
The tapes themselves have not been affected and record and playback perfectly.
If anybody actually knows about this, answers would be greatly appreciated.
Many thanks !
I understand it is not possible to get rid of it and it is a type of mould. My concerns are :
- does it spread or now that the boxes are in a different environment, will the problem cease ?
- does it cause respiratory harm ?
- now that the tapes are no longer in their sealed plastic bags, will they be harmed by it ?
The tapes themselves have not been affected and record and playback perfectly.
If anybody actually knows about this, answers would be greatly appreciated.
Many thanks !