In a message dated 7/6/01 2:58:25 AM Eastern Daylight Time,
billydeanward@hotmail.com writes:
>
> I will tell you that the ferric chloride method is something that you will
> throw rocks at when you learn about the etchant that I use. It has a
couple
> of requirements that must be strictly adherred to and other than that it is
> superior to any methods that I have come across:
>
> It must be well ventilated!!!!!!!!!!!!!!!!!!!!!!!
> It must not get too hot!!!!!!!!!!!!!!!!!!!!!!!!!!
>
> The following solution requires NO heating, NO bubbling, No agitation!
>
> 1-part H2O2 (Hydrogen Peroxide)
> 1-part Muratic acid (Hydrochloric Acid)
> 8-parts H2O (water)
>
> The boards are suspended in the solution and the reaction causes a
> thermogenic reaction and heats the solution. It must not get above 155 F
or
> it will boil out of the etching tank--even if it is tall. Adding a cup of
> Amonium Hydroxide will raise the danger point to about 187 F which is
easier
> to work with.
> =======================================================
Billy,
Thank you for your most informative post.
Would you please tell me what material the etching solution container is made
of?
Regards & 73 de
Dave, WT8R
--
FAQ on WWW: http://www.contesting.com/FAQ/amps
Submissions: amps@contesting.com
Administrative requests: amps-REQUEST@contesting.com
Problems: owner-amps@contesting.com
|