[QuadList] Edivue--Sprague Magnetics--"Sprague Mag" Magnetic Developer

[lee williams]

Hey Ted, 

Yes they are also doing 2" tape. 
Nice to see a clean working Smith Splicer set up. 

Lee 

--- On Thu, 9/8/11, Ted Langdell <ted at quadvideotapegroup.com> wrote:

From: Ted Langdell <ted at quadvideotapegroup.com>
Subject: Re: [QuadList] Edivue--Sprague Magnetics--"Sprague Mag" Magnetic Developer
To: "Quad List" <quadlist at quadvideotapegroup.com>
Date: Thursday, September 8, 2011, 9:22 PM

Let us know how it works for them.
Have to ask... are they editing/repairing Quad tapes with it?
Ted
On Sep 8, 2011, at 7:01 PM, lee williams wrote:
Great, 
Thanks Ted. 
That will help them out. 
Lee 

--- On Thu, 9/8/11, Ted Langdell <ted at quadvideotapegroup.com> wrote:

From: Ted Langdell <ted at quadvideotapegroup.com>
Subject: Re: [QuadList] Edivue--Sprague Magnetics--"Sprague Mag" Magnetic Developer
To: "Quad List" <quadlist at quadvideotapegroup.com>
Date: Thursday, September 8, 2011, 5:59 PM

On Sep 8, 2011, at 5:29 PM, lee williams wrote:
Does anybody know of anyone still making Edivue? 
Have a client who is almost out and looking to get a can or two. 
ThanksLee 
"Edivue" isn't on the market.
However, Sprague Magnetics has a product—Sprague-Mag—that may do the needed job:
http://www.sprague-magnetics.com/faq-7.htm
Technical details and how to use it is described here:http://www.sprague-magnetics.com/library/sprgmag.pdf
And partly presented here for educational purposes:
As with many virtually indispensable tools, the concept of the developer is simplicity itself. There are iron particles suspended in a fluid with a high, rapid evaporation rate. Thus, the developer is placed onto the magnetic surface, the liquid evaporates, and the magnetic particles orient themselves in accordance with the magnetic pattern on the surface of the material until the magnetic pattern is fully delineated. The regular particle size ranges from 1 to 3 microns. 
Environmentally safe. There used to be a number of products available similar to Sprague-Mag, but all of them used ozone depleting CFCs to insure quick liquid evaporation. With the new federal regulations restricting the use of such chemicals, these other magnetic developers have disappeared from the marketplace. Sprague-Mag does not use CFCs, rather it uses an environmentally friendly and acceptable (under current regulations) Methyl Nonafluoroisbutyl Ether/Methyl Nonafluorobutyl Ether as the evaporative liquid that the iron particles are suspended in, and for an aerosol propellant in the spray version, Sprague-Mag uses carbon dioxide. 
NOTE: SDF-130A has no effect on magnetic cards, but is an active solvent for some materials such as those used in cassette bodies. Effect on tape and tape coating is minimal. Screen/test the material prior to use. 
Directions for use: Shake first to insure proper and even suspension of the magnetic particles. Apply to an inclined surface with a cellulosic paper or tissue as backing to absorb excess Sprague-Mag. This immediate removal of excess material yields a distinct and clean visual trace. When done, remove the Sprague-Mag trace with a cleaning cloth or Scotch removable tape #811, or “Post It” adhesive backing (3M or equivalent). 12806 

Hope this helps.
Ted
Ted LangdellSecretary 

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