MacDermid Inc., 245 Freight Street, Waterbury CT 06702

Telephone: 800-325-4158 Fax: 203-575-7990 Sales Order Fax: 203-5785-5916

www.macdermid.com

MiniMist Liquid

PFOS Free Spray

Suppressant for Decorative

Hexavalent Chromium Plating

187473

Description

MiniMist Liquid is chemically stable anionic surfactant specifically designed

for use as a spray suppressant in decorative hexavalent chromium plating

processes. During electrolysis of the chromium plating solutions, a MiniMist

foam blanket is formed on the surface of the solution, which coupled with the

drop in surface tension, minimizes the escape of chromic acid mist into the

plating shop atmosphere.

MiniMist Liquid complies with European Directive (PE-CONS 3660/06,

15915/06 ADD1). This directive restricts the use of PFOS based materials in

decorative chromium plating applications.

Features

• Lowers the surface tension to 20 – 30 dynes/cm

• Reduces misting and airborne contamination

• Reduces solution drag out

• Contains no PFOS

• Cannot degrade to PFOA in the environment
MiniMist 187473 Page 2

MacDermid Inc., 245 Freight Street, Waterbury CT 06702

Telephone: 800-325-4158 Fax: 203-575-7990 Sales Order Fax: 203-5785-5916

www.macdermid.com

Initial Addition Rates

New solution

Up to 2.5 mL/l of MiniMist Liquid is required to give a uniform foam blanket

across the surface of the plating solution.

Conversion from PFOS containing solutions

Before conversion the surface tension of the solution should assessed. The

initial addition will depend on the amount of MiniMist Liquid required to reduce

the surface tension to below 40 dynes/cm and maintain a uniform foam

blanket across the surface of the plating solution.

Concentration V Surface Tension of Macrome MiniMist in Decorative Plating solution

0

10

20

30

40

50

60

70

80

0 1 2 3 4 5 6

mL/l MiniMist Liquid

Surface Tension (mN/m) General Control and Maintenance

• MiniMist Liquid is consumed by electrolysis. It is recommended that

small frequent maintenance additions based on amp hour consumption

of 75 - 125 mLs / kAh are made. The actual amount will depend on

each installation. In some applications the addition rate may be higher

in order to maintain the foam blanket.
MiniMist 187473 Page 3

MacDermid Inc., 245 Freight Street, Waterbury CT 06702

Telephone: 800-325-4158 Fax: 203-575-7990 Sales Order Fax: 203-5785-5916

www.macdermid.com

• During electrolysis, 0.5 mL/l increments of MiniMist Liquid can be

made, up to a maximum of 2.0 mL/l to maintain the foam blanket.

• If the solution is left standing idle for any long period of time (i.e.

shutdown / holidays) the surface tension of the chrome plating solution

should be measured and adjusted to below 40 dynes / cm with the

MiniMist Liquid. The graph above gives an indication of the

concentration of MiniMist Liquid based on the plating solution surface

tension. If required, further additions can be made to give a uniform

foam blanket.

• Effective spray control is essential (and a legal requirement). It is

strongly recommended that an efficient fume extraction system is

also used with this product. If the foam blanket is not controlled

and there is no efficient LEV system, chromic acid mist may be

released into the workplace environment during the chromium

plating operation.

• The effectiveness of the spray suppression must be checked at least

every two weeks by a method approved by local chromium plating

regulations.

Safety in Handling and Use

MacDermid, Inc. recommends that the company/operator read and review the

MacDermid Material Safety Data Sheets for the appropriate health and safety

warnings before use. Material Safety Data Sheets are available from MacDermid

Incorporated.

Waste Water Treatment

Prior to using any recommendations or suggestions by MacDermid, Inc. for

waste treatment, the user is required to know the appropriate

local/state/federal regulations for on-site or off-site treatment which may

require permits. If there is any conflict regarding our recommendations,

local/state/federal regulations take precedent
MiniMist 187473 Page 4

MacDermid Inc., 245 Freight Street, Waterbury CT 06702

Telephone: 800-325-4158 Fax: 203-575-7990 Sales Order Fax: 203-5785-5916

www.macdermid.com

Order Information

Product Name Product Code Container

MiniMist Liquid 187473 5 & 55 gallons

Disclaimer

Also read carefully warning and safety information on the Material Safety Data Sheet. This data sheet contains

technical information required for safe and economical operation of this product. READ IT THOROUGHLY PRIOR

TO PRODUCT USE. Emergency directory assistance Chemtrec 1-800-424-9300.

DISCLAIMER: All statements, technical information and recommendations contained herein are based on tests we

believe to be reliable, but the accuracy or completeness thereof is not guaranteed. No statement or recommendation

shall constitute a representation unless set forth in an agreement signed by officers of seller and manufacturer. NO

WARRANTY OR MERCHANTABILITY OR WARRANTY OF FITNESS FOR A PARTICULAR PURPOSE IS MADE.

The following warranty is made in lieu of such warranties and all other warranties, express, implied, or statutory.

Products are warranted to be free from defects in material and workmanship at the time sold. The sole obligation of

seller and manufacturer under this warranty shall be to replace any product defective at the time sold. Under no

circumstances shall manufacturer or seller be liable for any loss, damage or expense, direct or consequential, arising

out of the inability to use the product.

Notwithstanding the foregoing, if products are supplied in response to a customer request that specifies operating

parameters beyond those stated above, or if products are used under conditions exceeding said parameters, the

customer by acceptance or use thereof assumes all risk of product failure and of all direct, indirect and consequential

damages that may result from use of the products under conditions, and agrees to exonerate, indemnify and hold

harmless MacDermid Incorporated therefrom.

No suggestion for product use nor anything contained herein shall be construed as a recommendation to use any

product in infringement of any patent rights, and seller and manufacturer assume no responsibility or liability for any

such infringement.

187473

January 09