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How is Mottled HR manufactured?


arbutus967

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Might not be the correct forum but I am interested in understanding a little about the mottle ebonite manufacturing process (historical would be best).  I asked google but they didnt know and I've searched the FPN to no avail.  Anybody familar with how the process was done?

 

Thanks,
Danny

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Since these are still manufactured it may be best to contact those who currently produce them to find out the process involved in making MHR.

You might want to check with / ask in the "India & Subcontinent (Asia)" forum or contact ranga pens through their website.

 

https://rangapens.com/about-us

As for what has change since the historical way of making them , i have no clue. best bet would be to locate and follow the trail via patents?
 

 

 

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