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BONDERITE® M-PT ALX

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BONDERITE® M-PT ALX is a neutralizing agent applied over metal parts that have been conversion coated using BONDERITE® M-ZN 770X zinc phosphate.

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Product Overview

BONDERITE® M-PT ALX, formerly called PARCOLENE ALX, is a powdered chemical that neutralizes acidic phosphate during the conversion coating process. It is intended to be applied by immersing coated steel treated with BONDERITE® M-ZN 770X phosphate coating in the neutralizing bath. This step takes place after the cold-water rinse and before applying the forming lubricant to neutralize oxide metal parts and remove any residual alkalinity that can cause corrosion. As well as a neutralizing agent, BONDERITE® M-PT ALX acts as a lubricity aid by improving the complete absorption and reaction of the forming lubricant to the metal surface. It also extends the lubricant bath life by preventing phosphate contamination. The recommended starting bath concentration is 0.5 pounds of product to 100 gallons of water.

Applications

Metal forming
Wire drawing
 

Features & Benefits

Powder chemical, easy storage
Neutralizes residual acidic phosphate
Conditions the coating for reaction with the lubricant
Longer bath life
Increases the temperature of the workload
Improved corrosion protection
Prevents moisture pickup
Applied in an immersion bath
 

Problems Solved

Phosphate coatings are commonly applied to metal surfaces before forming or painting to improve adhesion, but acidic phosphate residue often remains on the part once the conversion coating process is complete. The acid residue can result in corrosion or insufficient lubricant absorption, causing part deformities, damage, or poor surface finish. Additionally, residual acid can contaminate the lubricant bath, shortening its longevity or increasing maintenance cycles.

Product Specifications

Operation and control:
Concentration, points: 0.5–0.8
Temperature range, °F: 150–170
Immersion time, seconds: 30–60
 

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