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Zinc-Phosphate Conversion Coating Agent for Steel Surface Treatment Prior to Cold Forming Metalworking Operations


Product Overview

BONDERITE® M-ZN 181 X is a powerful conversion coating agent for use on steel surfaces prior to cold forming operation.  BONDERITE® M-ZN 181 X creates an incredibly durable nonmetallic, phosphate coating on the metal surface that retains lubricants and helps protect metal surfaces during difficult cold forming and deep drawing applications. 
BONDERITE® M-ZN 181 X is available in initial bath Make-Up (MU) and Replenisher (R) grades. 


BONDERITE® M-ZN 181 X is engineered to be diluted in large immersion bath systems at a range of concentrations depending on metalworking operation.  Starting recommendations of BONDERITE® M-ZN 181X per 100 gallons of solution are below:
Batch Operation – 87 pounds BONDERITE® (7 gallons)
Strand Operation – 304 pounds BONDERITE® (24.5 gallons)
Tubing – 109 pounds (8.8 gallons)
Extrusion – 174 pounds (14 gallons)
BONDERITE® M-AD 131 (also known as Accelerator 131) is also added (2 fluid ounces per 100 gallons).

Features & Benefits

Reduction in Metal-on-Metal Friction
Extended Operational Tool Life
Facilitates Faster Drawing Speeds & Greater Production
Helps Create Smoother and More Uniform Surface Finish

Problems Solved

BONDERITE® M-ZN 181 X helps provide a solution to the following industry problems: 
Frequent or Excessive Sticking in Wire Drawing Processes
Incomplete Lubricant Adherence to Steel Surfaces

Product Specifications

Appearance: Green Liquid
Specific Gravity: 1.48 – 1.51
Operation & Control Specifications – Wire/Cold Heading
Batch Operation
Total Acid (Points):   19 – 21
Time (Minutes):   3 – 7
Strand Operation
Total Acid (Points):   68 – 72
Acid Ratio (TA/FA):  5.5 to 7.5
Time (Seconds):  5 to 15
Temperature: 170°F to 190°F (76°C to 57°C)
Tubing Operation
Total Acid (Points):   24 – 26
Acid Ratio (TA/FA):  5.5 to 7.5
Time (Minutes):  2 to 5
Temperature: 170°F to 190°F (76°C to 57°C)

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