MatWeb - Material Property Data Advertise with MatWeb!     Register Now
Data sheets for over 155,000 metals, plastics, ceramics, and composites.
MatWeb - Material Property Data HOME  •   SEARCH  •   TOOLS  •   SUPPLIERS  •   FOLDERS  •   ABOUT US  •   FAQ  •   LOG IN    
Recently Viewed Materials (most recent at top)  

Login to see your most recently viewed materials here.

Or if you don't have an account with us yet, then click here to register.

  Searches:   Advanced  | Category  | Property  | Metals  | Trade Name  | Manufacturer  | Recently Viewed Materials
Amatrium Materials AI
Dover Chemical MAYFREE 133 Phosphorus Nitrogen Compound, Chlorine Replacement Additive
Categories: Other Engineering Material; Additive/Filler for Polymer

Material Notes: Mayfree 133 is recommended as a replacement for chlorinated paraffin in almost every metalworking operation. Mayfree 133 is oil soluble; however, it can also be incorporated into water dilutable formulations. The rule of thumb to follow when trying to replace a chlorinated paraffin is to work on a one for one basis of Mayfree 133 for % chlorine. For example, a cutting oil contains 6% of a 50% chlorinated paraffin, bringing to the formula 3% chlorine; therefore, one would substitute in the product 3% Mayfree 133. Mayfree 133 does possess a high acid number, so the addition of or increase in the alkaline components, such as triethanolamine, must be made. In oil systems, Mayfree 133 is not compatible with other chlorine replacement additives, such as overbased sulphonates. Mayfree 133 is recommended for all metalworking applications, with the exception of very severe or stainless operations, which are normally performed with cutting oils containing in excess of 20% chlorine. Mayfree 133 has, in the field, successfully replaced chlorine at levels up to 15% in the formulations.

Information provided by DoverChem

Available Properties
  • Specific Gravity, 60/60°F
  • Density
  • Saybolt Viscosity at 100°F
  • Saybolt Viscosity at 210°F
  • Kinematic Viscosity at 40°C (104°F)
  • Kinematic Viscosity at 100°C (212°F)
  • Total Acid Number, [meqKOH/g]
  • Flash Point, COC
  • Phosphorus, P
Property Data

This page displays only the text
of a material data sheet.

To see MatWeb's complete data
sheet for this material (including
material property data, metal
compositions, material suppliers,
), please click the button below.

Manufacturer Notes:

Category Notes

Some of the values displayed above may have been converted from their original units and/or rounded in order to display the information in a consistent format. Users requiring more precise data for scientific or engineering calculations can click on the property value to see the original value as well as raw conversions to equivalent units. We advise that you only use the original value or one of its raw conversions in your calculations to minimize rounding error. We also ask that you refer to MatWeb's terms of use regarding this information. Click here to view all the property values for this datasheet as they were originally entered into MatWeb.


Lab Instruments
Please read our License Agreement regarding materials data and our Privacy Policy. Questions or comments about MatWeb? Please contact us at We appreciate your input.

The contents of this web site, the MatWeb logo, and "MatWeb" are Copyright 1996-2022 by MatWeb, LLC. MatWeb is intended for personal, non-commercial use. The contents, results, and technical data from this site may not be reproduced either electronically, photographically or substantively without permission from MatWeb, LLC.