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BONDERITE® M-ZN 300X

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Conversion coating agent that applies a zinc phosphate coating on steel surfaces before drawing operations.

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Product Overview

BONDERITE® M-ZN 300X (also known as BONDERITE 300X) is a zinc phosphating agent for metal surface preparation prior to drawing operations. When applied to steel in an immersion bath, BONDERITE® M-ZN 300X forms a protective zinc phosphate layer that prevents metal-on-metal contact during the forming process. This enhanced surface protection prevents corrosion and breakage, and provides improved part quality and finish. Additionally, the phosphate layer helps the lubricant better adhere to the steel surface. By creating an optimal environment for the forming process, this protective layer significantly minimizes the possibility of surface imperfections, contributing to an overall superior aesthetic appeal of finished metal products. The agent not only reduces maintenance costs by prolonging the life of tools but also allows for increased production efficiency by enabling faster drawing speeds. This combination of features makes BONDERITE® M-ZN 300X a valuable addition to industries looking to enhance both the durability and appearance of their drawn metal components. For the initial bath preparation, 14 gallons of BONDERITE® M-ZN 300X is recommended per 100 gallons of working solution.

Applications

Zinc phosphate coating on steel alloys during cold forming processes, such as:

Steel extrusion
Steel wire drawing
Steel rod drawing

Features & Benefits

Reduces metal-to-metal contact
Extends tool life
Allows faster drawing speeds
Reduces press downtime
Prevents part breakage
Provides smoother, higher quality surface finish

Problems Solved

Poor drawing or cold forming performance
Corrosion or breakage on wire or rod
Poor lubricant retention during drawing operation
Poor surface finish on formed steel parts

Product Specifications

Total acid (TA), points: 38 to 42
Acid ratio: 5.5 to 7.5
Immersion time, minutes: 3 to 7
Temperature (°F): 170 to 185
Accelerator, min. points: 1.5

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