Re: pencil vs neo was New Sharon couplers

train346@...
 

Pencil 'lead' contains clay and other fillers. 

 

If using pencil 'lead' for lubrication, use a softer grade pencil.  A 2H pencil is too hard and contains too little graphite to provide the desired lubrication

 

I suggest an HB or softer pencil.  The art supply section of your favorite craft store will have these.

 

http://www.pencils.com/blog/hb-graphite-grading-scale/

 

 

 

Rex Beistle

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