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SRA-250 Water Torch


#1

I have misplaced my Stan Rubenstein Associates SRA-250 user’s
manual. I need the info on mixing boric acid to methanol. The ratio,
specifically. Can anybody help me???

Thanks, in advance,

John
Its In The Works Studio


#2

Dear John:

I need the info on mixing boric acid to methanol. The ratio,
specifically. Can anybody help me??? 

We carry in stock, and sell this mixture in a very pure form called
"Noxide[tm]" which is a liquid concentrate used as an additive for
our Spirflames[tm], which produces slightly over 250 liters per
hour. One liter is good for about 80 liters of Methanol, and has a
very good shelf life (years). In a SRA 250 (Elettronica Todescato
model L/45) unit which produces up to 45 liters of gas per hour you
would use about one quarter cap full, to each booster filling. The
benefit Noxide provides is the flux stays in uniform suspension,
always being the same flame temperature, and providing much less tip
clogging. The cost is $18.00 per liter, plus the UPS Hazardous
Shipping charge. A Spirflame[tm] being a multicell generator, always
produces a pure, well balanced hydrogen/oxygen flame, no longer
requires this additive, although we have many customers using it as a
very good brush on flux. We also have a small percentage of single
cell customers who use this. One liter would last you many years of
running full time at 45 liters per hour. If your supplier is unable
to provide you with a manual for your unit, please provide the
serial number of your unit, so we get the righ series, and I am sure
we can provide a copy from our own archives. If we can provide any
additional or be of any help, please give me a call or
E-mail me directly.

Gary
Gary W. Miller
Sr. Technical Advisor
Spirig Advanced Technologies, Inc.
Tel: 800 499 9933 / 203 378 5216
www.spirig.com