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EJ-560 silicone rubber has been developed specially for making
optical joints between photosensors and plastic scintillators.
The rubber material is quite soft and flexible and can be made
to conform to contoured surfaces.
It is a fully-cured polymer designed so its surfaces are
slightly sticky to the touch, and it can be deformed under
mild pressure.
Nevertheless, it does not flow like a grease and will not extrude
irreversibly out of its composition regin.
Hence it is ideal for long-term coupling of photomultiplier
tubes to scintillators.
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Pads of EJ-560 are presently available in thickness of 1mm,
1·1/2mm, 2mm and 3mm and in diameters ranging from
10mm up to 125mm.
It is also available in sheet form and can be easily cut to
size with razor blades or scissors.
The maximum available sheet size is 33cm x 53cm.
All EJ-560 products are shipped with the surfaces masked with
an easily removed thin polyethylene sheet.
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EJ-560 rubber will easily adhere to any smooth surface and can
also be easily peeled away without damaging either component.
However, they can be cleaned with aid of any lower alcohol
such as isoproryl alcohol and hence restored to their original
condition.
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