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Metal Prep - Gallon
Metal Prep - Gallon
Metal Prep - Gallon
Metal Prep - Gallon

Metal Prep - Gallon

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Formerly Prep and Ready.

Second step of the POR-15 3-Step System to Stop Rust Permanently. Cleaner Degreaser - Metal Prep - Rust Preventive Coating.

Etches Metal and Leaves a Zinc Phosphate Coating

POR-15 Metal Prep provides the best adhesion for POR-15 Rust Preventive Coating on any metal surface, including aluminum and shiny polished metal surfaces.

Our simple process gently etches metal, creating an ideal anchor pattern for coatings such as POR-15 Rust Preventive Coating, while simultaneously leaving a zinc phosphate coating to insure chemical bonding of paint and steel. It creates the perfect anchor pattern for any topcoat, especially the incredible POR-15 Rust Preventive Coating

Avoid other preps that may leave harmful residues which prevent proper adhesion.

After thoroughly degreasing your work piece, apply environmentally safe POR-15 Metal Prep to both neutralize any rust and etch any clean bare metal. This will allow better adhesion of POR-15 Rust Preventive Coating or any other coating.


  • Easy-to-Use, One-Step Process Coats Metal with Zinc Phosphate
  • No Harmful Residues
  • Insure Perfect Paint Adhesion
  • Reusable
  • Provides Perdect Base for All Paints
  • Removes Surface Rust in Minutes!
  • Gives Better Welding Conductivity.

POR-15 Metal Prep is not caustic, corrosive, toxic or flammable. 

Size: Gallon = 3.78L

Interesting Facts you should know about steel and prepping it before you coat it with POR-15 Rust Preventive Coating:
In every car manufacturing facility, steel in different parts of the car body often comes from different steel mills and different production lots, and the surface texture varies with the condition of the steel mill rolls which cold roll the steel to its final thickness.
Also, surface cleanliness varies with the mills cleaning procedures, especially the procedures used to control carbon smut is actually baked onto the steel during the high temperature annealing process which follows rolling. This carbon smut is impossible to remove except by mechanical abrasion.
Rust varies with the care taken in handling (1) at the steel mill, (2) during transportation and storage, and (3) during fabrication. Steel stored for a long time with rust inhibiting oil will react to form an incomplete oxide known as oil stain. The result of all this is that ordinary steel varies widely in the manner in which it accepts coatings.
Although some commercial steel provides an excellent surface for coatings, you are just as likely to find steel which gives poor adhesion and poor rust resistance, even with good coatings. Often the same mill will produce both very good and very poor surface quality, depending upon a number of uncontrolled factors.
Nearly all the above problems can be overcome by using POR-15 Metal Prep before you coat your steel. POR-15 Metal Prep is an inexpensive insurance policy that guarantees perfect adhesion of POR-15® Rust Preventive Coating to any metallic surface every time. Whether you paint your car or your fence or your outdoor furniture, the problems are always the same, because you don't know anything about the steel you're painting or what mill it came from, and you can't learn anything by just looking at it even if you have perfect vision!


Technical Data Sheet - POR-15 Metal Prep
Safety Data Sheet - POR-15 Metal Prep

POR - 15 Shipping Rates 

Orders made before 12pm Monday - Friday will be dispatch same day for over night delivery. Our shipping rates are as follows:

North Island: $6.50

North Island Rural: $11.50 

South Island: $8.5 

South Island Rural: $13.50

Have a problem with your order?

We believe you have the right to choose between a refund, exchange or a credit note if our goods are faulty, have been wrongly described, are different from the sample shown to you or do not do what they are supposed to do.
Please contact us to get instructions on how to return goods to ensure a speedy resolution.

Email: sales@por15nz.com or Call Us: 021446682

Customer Reviews

Based on 1 review
Steve Douglas
metal prep

Instructions are very confusing as it was said to stop bare steel rusting which I wanted to do after stripping panels to bare steel but not painting for a few days or more However you put it on wash it off as per instructions Next morning its rusty I emailed the US and only got back the same instructions that are on the label Useless product not fit for purpose