### FC 

## DATA SHEET 

# Fumetrol® 21 LF Chromium Mist Suppressant Version: 01
Doc.-No.: 7032-US IMDS-No.: Not applicable

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## CONTENTS

PROCESS INFORMATION

............................................................................................................................... 2 BATH MAKE-UP USING FUMETROL 21 .........................................................................................................3 MAKE-UP TABLE FOR HARD CHROME PLATING BATHS (0.25% BY VOLUME) ...................................3 BATH MAKE-UP USING FUMETROL 21 LF FOR ANODIC ETCHING BATHS ..............................................4 MAKE-UP TABLE FOR ANODIC ETCHING BATHS (0.25% BY VOLUME) ................................................4 SOLUTION MAINTENANCE .............................................................................................................................5 SAP NO. FOR MAKE-UP AND MAINTENANCE PRODUCTS .........................................................................6 USE OF FUMETROL 21 LF ..............................................................................................................................6 SURFACE TENSION VERSUS FUMETROL 21 LF MAKE UP CONCENTRATION CHART ..........................7 WASTE DISPOSAL

............................................................................................................................... ............8 GENERAL SAFETY PRECAUTIONS ...............................................................................................................8

# Fumetrol® 21 LF
Chromium Mist Suppressant Version: 01
Doc.-No.: 7032-US

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## PROCESS INFORMATION

• Fumetrol® 21 LF Chromium Mist Suppressant is a stable, highl y effective, liquid surfactant for chromium plating baths. It provides an excellent balance bet ween a controlled layer of foam and surface tension reduction to eliminate misting and reduce drag out. Fumetrol 21 LF is a non-PFOS* based surfactant.

• Fumetrol 21 LF is suitable for use in both Decorative and Functional (Hard) chromium applications.

• Fumetrol 21 LF lowers the surface tension to 30 - 40 dyne/cm, substantially cutting drag-out losses, as well as reducing the size of escaping bubbles.

• Fumetrol 21 LF can be used in chromic acid and sulfuric acid anodizing solutions.

Fumetrol 21 LF offers these significant advantages when present in chromium plating baths:

• Virtual elimination of chromic acid mist in the work area

• Lower chromium replenishment costs resulting from reduced drag-out and spray-loss of plating solution

• Less chance of contamination of adjacent plating solutions by chromic acid mist

• Can increase life of ventilati ng and other plating room equipment

• Low foam *PFOS and its derivatives are not used to make Fumetrol 21 LF products.

# Fumetrol® 21 LF
Chromium Mist Suppressant Version: 01
Doc.-No.: 7032-US

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## BATH MAKE-UP USING FUMETROL 21

NOTE: Wear the appropriate personal protective equipment for the chemistry being used during solution makeup activities.

Metric

Make-Up for 100 liters of Chrome Plating Bath Liter Kg Fumetrol 21 LF Make up 0.25 0.25
US Imperial Make-Up for 100 gallons of Chrome Plating Bath Gallon Fumetrol 21 LF Make up 0.25



### M ake-up Table for Hard Chrome Plating Baths (0.25% by volume)

iters or Gallons olume 200 400 600 800 1000 L Solution V Fumetr ol 21 LF Make up 0.5 1.0 1.5 2.0 2.5

A n initial make-up of 2.5 ml/l (or 2.5 gallons per 1,000 gallons) of Fumetrol 21 LF Make Up is recommended to

Please note that due to high concentration of the Fumetrol 21 LF Make Up product, it is recommended to dilute achieve effective mist suppression and surface tension reduction. This concentration will reduce the surface tension to the desired value of about dyne/cm and gener ates a foam layer around the anode and cathode during plating.
it using de-ionized water before adding it to the ch rome plating bath. A dilution of about 5:1 is suitable.

# Fumetrol® 21 LF
Chromium Mist Suppressant Version: 01
Doc.-No.: 7032-US

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## BATH MAKE-UP USING FUMETROL 21 LF FOR ANODIC ETCHING BATHS

NOTE: Wear the appropriate personal protective equipment for the chemistry being used during solution makeup activities.

Metric

Make-Up for 100 liters of Chrome Plating Bath Liter Kg Fumetrol 21 LF Make Up 0.1 - 0.25 0.1 - 0.25
US Imperial Make-Up for 100 gallons of Chrome Plating Bath Gallon Fumetrol 21 LF Make Up 0.1 - 0.25



### Make-up Table for Anodic Etching Baths (0.25% by volume)

Liters or Gallons Solution Volume 200 400 600 800 1000 Fumetrol 21 LF Make up 0.25 0.5 0.75 1.0 1.25

Fumetrol 21 LF can be used in chromic acid and sulfuric acid an odizing solutions. An initial make-up of 1.0 - 2.5 gallons of Fumetrol 21 LF Make Up per 1,000 gallons (1.0 - 2.5 liters per 1,000 liters) of anodizing solution is recommended to achieve effective mist suppression and su rface tension reduction. Since anodizing takes place at lower temperatures than chromium plating, more foam may be present.

# Fumetrol® 21 LF
Chromium Mist Suppressant Version: 01
Doc.-No.: 7032-US

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## SOLUTION MAINTENANCE

NOTE: Wear the appropriate personal protective equipment for the chemistry being used during solution maintenance activities.

The effectiveness of Fumetrol 21 LF is maintained by addition of Fumetrol 21 LF Maintenance solution based on one of three methods. If more foam is desired, maintain with Fumetrol 21 LF Make Up

. Optimum control is obtained by measuring the surfac e tension using a tensiometer and is the recommended control method. A stalagmometer can be used but will give different surface tension values that can be up to 10 to 20 dynes/cm higher than the actual values. Additi ons can be made based upon amp-hours or by visual examination of the foam blanket. Since usage of Fumetrol 21 LF is dependent upon the amount of work processed and drag out, experience will determine the proper amount required to maintain an operating solution. The following table gives general guidelines for control of Fumetrol 21 LF :

Metric Control Method Per Addition Rate (milliliters) Comments
Surface tension 1,000 liters per 1 dyne/cm 220 - 270 Target 25 - 35 dyne/cm Ampere - hours 10,000 Amp hours 50 - 100 --
US Imperial Control Method Per Addition Rate (Fluid Ounces) Comments
Surface tension 1,000 gallons per 1 Dyne/cm 28 - 35 Target 25 - 35 dyne/cm Ampere - hours 10,000 Amp hours 1.6 – 3.3 --
Please note that due to high concentration of the Fumetrol 21 LF Maintenance product, it is recommended to dilute it using de-ionized water before adding it to the chrome plating bath. A dilution of about 5:1 is suitable.

# Fumetrol® 21 LF
Chromium Mist Suppressant Version: 01
Doc.-No.: 7032-US

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## SAP NO. FOR MAKE-UP AND MAINTENANCE PRODUCTS

PRODUCT SAP No. FUMETROL 21 LF MAKE UP 1682336 FUMETROL 21 LF MAINTENANCE 1682335



## USE OF FUMETROL 21 LF

Fumetrol 21 LF greatly reduces the drag-out of the plating solution and so an adjustment in the replenishment schedule of the various bath materials may be required. Heating and cooling requirements of the tank may requ ire minor adjustments. The foam blanket formed around the anode and cathode during plating will slightly reduce heat loss. Fumetrol 21 LF may not be readily compatible with other mist suppressants and chromium processes. Contact your local Atotech representative for further details. The graph below shows the tensiometer surface tension values as a function of Fumetrol 21 LF Make Up concentration in a HEEF ® 25 plating bath containing 250 g/l Chromic Acid.

# Fumetrol® 21 LF
Chromium Mist Suppressant Version: 01
Doc.-No.: 7032-US

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## SURFACE TENSION VERSUS FUMETROL 21 LF MAKE UP CONCENTRATION CHART

0 10 20 30 40 50 60 70 80

0 0.5 1 1.5 2 2.5 3 3.5 4 Fumetrol 21 LF Make Up [ml/l]Surface Tension [Dyne/cm] Tensiometer Stalagmometer

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# Fumetrol® 21 LF
Chromium Mist Suppressant Version: 01
Doc.-No.: 7032-US

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## WASTE DISPOSAL
This material must be disposed of in accordance wi th all applicable federal, state, and local regulations and permits. Consult the MSDS for additional regulatory inform ation. The information contained herein is general in nature and may not apply to each application.



## GENERAL SAFETY PRECAUTIONS
When working with this product(s), ensure that all he alth, environmental, and safety regulations and standards are met. Avoid direct contact with this material. Do not inhale associated mist, vapors, and/or dust. Maintain and limit exposure as recommended by OSHA, ACGIH, and ot her state and local regulations. Wash contaminated clothing before reuse. Always comply with the Hazard Communication Standard, 29 CFR 1910.1200. Emergency showers and eyewashes must be readily available. Wear the appropriate personal protective equipment for the chemistry being handled. It is recommended that the plating chemistry product(s) re ferred to in this Technical Information Sheet be used: (a) in accordance with the information provided in product specific MSDS; and (b) in compliance with all applicable requirements and guidelines establishe d by OSHA, NIOSH, AC GIH, NFPA, and others. NOTE: A Material Safety Data Sheet (MSDS) for this prod uct(s) is available upon request from Atotech USA Inc., Customer Service/Sales Support Group, 1750 Overview Drive, Rock Hill, SC 29730. REVIEW MSDS BEFORE USING TH IS PLATING CHEMISTRY AND FO R SPECIFIC INFORMATION. A precautionary approach should be used when there is potential for chemical exposure -- this includes minimizing exposure potential, rapid decont amination, and medical follow-up. 

### TELEPHONE NUMBERS General Information: (803) 817-3500 To Place an Order: 1-800-PLATING

IMPORTANT NOTICE REGARDING THIS INFORMATION: The statements, technical information, and re commendations contained in this document are based on tests and data that are believed to be reliable. Further, as the actual use of our products by others is beyond our control, no guarantee of any kind is made as to the effects of such use, or the results to be obtained, whether the use is m ade in accordance with the recommendations or suggestions contained herein or otherwise. This document is not contractual and NOTHING HEREIN CONSTITUTES A REPRESENTATION OR WARRANTY THAT THE GOODS DESCRIBED ARE FIT FOR A PARTICULAR PURPOSE OF A CUSTOMER or that their use does not conflict with any existing patent rights. The ex clusive source of any warranty and of any other customer rights whatsoever is on the Atotech invo ice. Also, since electronic media may provide this data sheet, Atotech cannot guarantee the accura cy or originality hereof. Any alterations made to this document other than by Atotech cor porate headquarters are expressly prohibited. Atotech USA Inc. 1750 Overview Drive Rock Hill, SC 29730

phone +1 (0) 803 817 3500 fax +1 (0) 803 817 3666

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