Hi, Corey,

Since the D5 evaporates, it does not stick around to harm the tape.

I have looked at one or two tapes I've treated with it a year or so 
after the treatment and there was no ill effect.

As some idea of how it evaporates, I over-lubricated a cassette the 
first time I tried it and the Dragon stopped working.

Two weeks later the Dragon's health was back and working fine.

I have tried open-dish evaporation tests and it seems to disappear 

It's not that much of a mystery chemical. I suspect you use it 
frequently in personal care items. It's what provides the slipperyness 
in many shampoos and other such items.



On 2018-06-07 4:05 PM, Corey Bailey wrote:
> Hi Dan,
> With all due respect to Richard Hess and his use of D5, I have not been 
> able to find any information on the long term effects of the chemical on 
> the tape oxide. How well will the tapes play after having been stored 
> for a few years after treatment with D5? Perhaps Richard can enlighten 
> us further on the long term storage of tapes that have been treated with 
> D5.
> Because of that concern and some regarding the MSDS issued for D5, I use 
> a chemical manufactured by Last Factory called "Tape Last". I have been 
> assured by Last Factory that Tape Last is not only safe for long term 
> storage but actually enhances the tape being stored over time. I have no 
> evidence regarding the latter. However, I have had success using Tape 
> Last on audio tapes suffering from varying degrees of SSS. More 
> information on my use of the product can be found here: 
> Lubricating audio cassettes (or any kind of cassette housed tape) is a 
> real, time consuming, PITA. For audio cassettes, I have modified a 
> transport and dedicated it to the process.
> Cheers!
> Corey
> Corey Bailey Audio Engineering
> On 6/7/2018 9:26 AM, Dan Gediman wrote:
>> Folks,
>> Thanks so much for all the good suggestions. To answer Richard’s 
>> question, yes, the same squealing happens at the same point in the 
>> recording even if I take out the tape, clean the tape machine well, 
>> let it dry, put the cassette in, rewind slightly, and resume the 
>> dubbing. Following other suggestions, I have transferred the tape I 
>> had been dubbing into a new Maxell shell, put it back into the deck, 
>> rewound, and started again. The tape begins squealing at the same 
>> exact spot on the tape, which BTW, isn’t at the very end of the tape, 
>> as with the others, but rather at about the half-way point on a C-60. 
>> Can you folks think of a reason why the tape should begin squealing at 
>> precisely that point and is there anything else I could try.  I tried 
>> using various noise-reduction and EQ plugins and nothing seems to help 
>> using that technique. And I don’t have access to Richard’s suggested 
>> D5 lubricant. Are there other less great but still useful lubrication 
>> options? I saw some reference to putting Teflon tape on the head of a 
>> cassette deck and running the tape through all the way, presumably 
>> picking up the Teflon coating along the way. Is that a reasonable 
>> option? If so, would this just be the kind of plumber’s tape sold at 
>> hardware stores (the only things I found when Googling “Teflon tape”) 
>> or is this some specialized tape and if so, where would I get it.
>> And additional suggestions gratefully accepted.
>> Thanks,
>> Dan
>> Dan Gediman
>> 502 299-2565
>> [log in to unmask]
>> <>
Richard L. Hess                   email: [log in to unmask]
Aurora, Ontario, Canada                             647 479 2800
Quality tape transfers -- even from hard-to-play tapes.