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Maxim Semi-Synthetic 556 

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   Maxim Semi-Synthetic 556 Datafile                



MAXIM SEMI-SYNTHETIC  556  is a water extendible, general purpose semi-synthetic cutting and grinding fluid formulated to perform exceptionally in a variety of machine operations.

MAXIM SEMI-SYNTHETIC  556, when mixed with water, forms a water-thin transparent micro-emulsion that exhibits excellent cooling properties for superior finishes and increased tool life. 556 is recommended for use when machining, sawing and grinding ferrous and non ferrous materials where machinability requirements range from mild to moderately severe. The opaque emulsion is non-foaming, silicon free, and easy to mix in both  soft and hard water containing up to 1000ppm Ca/Mg hardness.  


MAXIM SEMI-SYNTHETIC  556  remains highly transparent to afford the machine operator full view of the work.

The effective biostatic system formulated into the  556  yields a high resistance to microbial degradation and rancidity; this allows for longer coolant life in machine sumps and central coolant systems without special maintenance procedures.  Unlike many solubles and synthetics, the  556 remains fluid in and on the surfaces of the machining center allowing slideways, chucks, and tooling to work freely without a hard-to-clean dry or sticky residue.

MAXIM SEMI-SYNTHETIC  556 incorporates a three part DEA FREE  rust inhibitor package that provides complete protection for machine surfaces and parts in process.  556 also contains an inhibitor to prevent galvanic corrosion between stacked parts.  This feature makes 556  well suited for the machining of cast iron, copper and its alloys as well as a variety of machine operations on aluminum.


MAXIM SEMI-SYNTHETIC  556 has met the criterion concerning corrosive characteristics of metalworking fluids on various metals set forth by the major D.O.D. contractors.

Recommended Starting Dilutions



drilling,  turning,  milling,  tapping,  boring,  and reaming

1 : 25  ( 4% )   to   1 :10  ( 10% )


centerless,  surface,  cylindrical,  internal,  band

1 : 33  ( 3% )   to   1 : 14  (  7% )


Concentration Check


Concentration  1:33 1:25 1:20 1:17 1:14  1:12 1:11 1:10
(3%)  4%) (5%) (6%) (7%) (8%) (9%) (10%)



(Brix Scale)

0.9 1.1  1.5 1.7  2.0  2.3  2.6   2.9


MAXIM SEMI-SYNTHETIC  GS4  Performance Advantages



Unique Tool /Wheel Performance -  Excellent cooling properties and extreme pressure lubricity combine to provide extended tool life.


Excellent Cleanliness -  Remains semi-transparent ; good settling properties provide for ease of contaminant removal;  low foaming;  non-drying on machine surfaces.


Exceptional Corrosion Control -  Prevents in-process corrosion of work pieces and machine tool parts.


Long Life -  More tolerant of hard water and tramp oils and has a high resistance to rancidity for longer sump life.


High operator acceptance.


Typical Physical Characteristics


Weight, (lb.s / gal.) 8.5
Specific Gravity, 60/60F 1.02
Flash Point, COC F none
pH, fresh,1:20 (5%)dilution 9.6-9.8
Color, dilution opaque/blue-green
Color, concentrate undyed / blue


MAXIM SEMI-SYNTHETIC 556 is available in 55 gallon steel drums, totes and bulk quantities.


For additional information,  product samples,  etc., please contact;



Fort Worth Texas

Metro (817)  293-4645


Information contained herein is believed to be correct and reliable.  However, Maxim Petrochemical Corporation does not assume liability for it or for recommendations of our representatives inasmuch as conditions and methods of use are beyond our control.  Further, we make no warranty, expressed or implied, of any kind regarding those products or their use and purchaser assumes all risks of use or handling either in accordance with directions or not


The information and recommendations contained herein are, to the best of the knowledge and belief of Maxim Petrochemical Corporation, accurate and reliable as of the date issued.  Maxim does not warrant or guarantee their reliability, and Maxim shall not be liable for any loss or damage arising out of use thereof.

The information and recommendations are for the user's consideration and examination.  Conditions of use are beyond Maxim's control and therefore users are responsible to verify this data under their own operating conditions to determine whether the product is suitable for their particular purposes and they assume all risk of their use, handling, and disposal of the product(s).  This information relates only to the product(s) designated herein and does not relate to its use in combination with any other material or in any other process.


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                                                                                                                                       Last modified: August 19, 2016