A Solution For Industries Requiring Acid Baths
Galvanizing, Electroplating, Anodizing, Wire, Rod & Steel
Use PRO pHx to Maintain Acids at Maximum
When Used as Directed PRO pHx Extends
Acid Life Indefinitely
MAINTENANCE SHORT CUT:
A Simple Maintenance "Rule of Thumb" Is To
Spike Acids Weekly, Maintain PRO pHx at 1% and Filter
Add & Maintain PRO - pHx at 1%
PRO pHx is introduced into the acid
bath at 1% to the total
tank volume (acid & water) and then PRO pHx
is maintained at 1% to all acid & water introduced (spiked)
into the bath.
On going filtration is suggested.
Use effective filtration.
Spike Acids Weekly
Titrate acids and return acids to
strength at least weekly.
APPLICATION GUIDELINES & GENERAL INFORMATION
Application Is Simple; Add PRO pHx at 1% to
Acid and Filter.
Effective results requires approximately a 1% ratio of PRO pHx
to the total acid / water volume and effective filtration.
Filtration is necessary. Filtration
requirements may vary from 1 to 100 micron, with 5, 10 and 50 micron
being used most often. First application of PRO
pHx to a contaminated acid may cause a foam or gel
film to appear on the surface. This means the reaction is occurring
as expected. It will dissipate over the first hours of the application
and effective filtration will remove this from the acid. Once the
acids are restored to their optimum range of a 2 to 3 day old acid
bath, this will not reoccur unless large amounts of organics are
reintroduced into the treated bath. Effective filtration is necessary.
A general statement is that the less organics (coatings) introduced
into the acid, the smaller the micron requirement. The fewer metals
introduced into the acid, the smaller the micron requirement. As
an example, Copper only in an acid metal may require 1 to 5 micron
filtration. Clean Iron, Zinc & Aluminum parts may require 5
or 10 micron filtration. Cast Iron with coatings may require 50
or 75 micron filters. Ongoing filtration is suggested but may not
be necessary for smaller baths. (They may require filtration only
a few hours each day or each week.) An acid bath that last one week,
two weeks or one month, has more requirement for filtration that
a bath that last six months without PRO pHx.
Find the filtration that best suits your production and acid conditions.
There is no reason to stop the production line when adding PRO
pHx or while filtering. It seems to have no adverse
reaction on the end result plating quality. It simply stabilizes
the acid so they behave as a first week old acid. You will become
familiar with the behavior of the PRO pHx additive
to your acids after a few weeks. To date we have not had a treated
bath fail when suggested maintenance is followed (See the FAQ -
Frequently Asked Questions). The quality of the plating results
will be optimized because the acid will provide the consistency
and strength of a 2 to 3 day old acid.
Spike Acids Weekly
Maintenance Requires Ongoing Acid Spikes.
Titrate the acid at least weekly and restore the acid strength.
The adds of fresh acid are normally necessary to replace the acid
lost through drag out and evaporation during production. It is also
necessary to maintain treated acids at optimum acid strength. You
will find each time you add fresh acid to the treated bath, the
filter residue will be greater than before the acid spike.
No Down Time
Treated Acids May Be Used Immediately Upon Adding PRO pHx.
No down time is required. Filter treated acids. The small amount
of foam or a film on the bath surface has no adverse effect on the
plating production. It rinses off during the rinse cycle and is
not carried down line to the plating tank. Effective filtration
will remove the foam or film from the surface of the acid bath.
(See the FAQ - Frequently Asked Questions)
A General Rule
The more contaminated a used acid is, the more filter cake will
be caught in filtration. If you are spiking acids weekly, you will
notice the filter captures larger volumes of filter cake or sludge
after the fresh spike of acid. If your filtration is not pulling
the usual amount of sludge, this is often an indication the acid
requires a small amount of fresh acid. If you spike the acid and
no residue is captured on the filter then add additional PRO pHx.
PRO pHx is not effective below 1/2% ratio to the total
acid/water in a bath. If the metals numbers begin to climb and the
acid spike does not affect this result then this is an indication
that the amount of PRO pHx has fallen below 1/2% to
the acid/water ratio. Do not forger that drag in from the rinse
tank can dilute the acid. Do account for drag in when calculating
the 1% of PRO pHx being added to the total bath volume.
All PRO pHx Additions After The First
Maintain PRO pHx At 1% to the total acid / water volume
Keep track of your acid spikes and maintain PRO pHx
at 1% to the total acid / water volume added back to the tank.
PRO pHx is not effective at
less than 1/2%. Maintain PRO pHx at 1% to the
total acid bath volume of acid & water to insure productive