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Charlie Pitarys
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Inside Sales Technical Manager
Kyzen Corporation
Charlie Pitarys has thirty years of industry experience and has been with Kyzen Corporation for sixteen years. Charlie is a former Marine and a retired Sargent First Class in the Army Reserves. His previous employers include Hollis and Electrovert. Charlie continues to use his expertise on cleaning processes and machine mechanics to help Kyzen customers and partners improve their cleaning operations.

Charlie Pitarys has submitted responses to the following questions.
Solder Paste Prep Before Use
S.S. for storage and preparation of the solder paste you should always refer to the best practices defined by your ...
Question About J-STD-001
You will hear a common phrased answer, "It all depends." You have not specified the final application of your assemblies. ...
Challenging Cleaning Problem
If possible, assemble the board with the ECG circuits with high impedance differential amplifiers, BGA processors and ASICs before attaching ...
White Legend Ink Turning Pink
In almost 30 years in this industry I have never seen that happen. I would suspect the flux vapors in ...
Cleanliness After Coating Removal
My first question to you will be what are you using to remove the polyurethane and second, what flux are ...
Deionized Water Sample Testing
P.C. the DI water will always read highest at the source. DI water is only DI water in its purest ...
Flux Oozing from Insulated Wires
K.C. the root cause of this is the flux itself. Flux must first be prevented from wicking up there. A ...
White Discoloration After Ultrasonic Cleaning
After many years of involvement in the PCB and precision cleaning industry the visible white residue issue by far has ...
Gold Edge Contact Flux Contamination Failures
LS this failure scenario is likely a result of several factors. A no clean flux when processed correctly will meet ...
Cleaning with Sodium Bicarbonate
I am assuming you are relying on the abrasiveness of the sodium bicarbonate as fine scrub compound to remove the ...
Immersion Gold PCB's with Oxidation
Gold should not form oxides from sitting around or heating.  Gold is a noble metal because it doesn't form many ...
Ultrasonic Cleaning Solution
I am assuming you are using an aqueous solution in the ultrasonic cleaner right now and have a DI water ...
Special Cleaning Needs for BGA and QFN Components
S.P. you make no reference to the flux or solder alloy currently being used so I will make a general ...
Solvent Attacking Flex Circuits
T.G. I have several customers today that routinely clean flex circuits using a vapor degreaser containing a nPb solution similar ...
Steam Cleaning PCB Assemblies
You make no reference to the type of flux you need to clean. This is very important in order for ...
Delay Before Washing Water Soluble Flux
A common answer in this industry, "...it depends". There has already been several fine reasons submitted for or against this ...
Water Washing Pressure
You can investigate the products from Tekscan located in Boston, MA. We played with one of their testers about 3-plus ...
Cleaning PCB's of Oxidation
Oxidation is simply the combination of a substance with oxygen. The process cannot be stopped. Yes proper storage and handling ...
Cleaning Conformal Coated Boards After Rework
I agree with the response posted earlier by Ms. Jade Bridges at Electrolube, Ltd. In a follow up response I ...
Abrupt Decrease in DI Water Resistivity
An abrupt change as you described will be hard to nail down without more specifics on your wash process. The ...
Wave Solder Pallets
I have polled a few folks who did the change over and I also contacted a well known tooling company ...
Post Print Inspection Issue
Scrapping out the misprint board is certainly a viable and sometimes cost saving alternative over cleaning them. Does labor cost ...
Pros and Cons of Cleaning No-clean
The pros & cons of cleaning circuit boards are monumental in opinions and applied science from both sides of the ...
Flux Residue Causing Test Issues
Flux residue on connector pins at times can prove challenging to resolve. It appears you are running a true No ...