Platen top rubber - what do you use, where do you get it?
I buy white nitrile rubber in 3' sheets from Rubber Cal.
http://www.rubbercal.com/White_Nitrile.htmlIt's $15 linear foot plus the shipping. It's not perfectly blemish free, but the lumps are usually only on one side.
I have no idea if this is a "good deal" or if that's the "right rubber" but it works. (the same stuff but black in color is half that price - I don't think the difference would be worth it as we register on press, but might try it sometime)
We apply it with contact cement. It only needs replacing when it gets too hot and a bubble forms (not something that normally happens without forgetting a platen under a flash).
A whole lot cheaper than say, action engineering's "soft top rubber"
http://www.actionengineering.com/Cat-24-1-1280/soft-top-rubber.htm