Metal Prep

Metal Etching Rust Neutralizer

item(s): 40204

Size

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. The simple process of this pre-paint cleaner for metal 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. 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. This metal-etching rust neutralizer is not caustic, corrosive, toxic or flammable.

Features:

  • Easy to use – one step process
  • Coats metal with zinc phosphate
  • No harmful residues
  • Insures perfect paint adhesion
  • Is reusable
  • Provides perfect base for all paints
  • Removes surface rust in minutes
  • Improves welding conductivity

POR-15 Metal Prep Technical Data Sheet


Step 2 Prep it with POR-15 Metal Prep
"We located the rustiest car we could find and performed a complete floor pan replacement. The key to the repairs is etching the new metal with Metal Prep and sealing it with POR-15 and paint. This ensures that rust will not be a problem in the future." Muscle Car Review Magazine

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!

Customer Reviews

Based on 68 reviews
88%
(60)
9%
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L
Lindsey Zirkelbach

Metal Prep

M
Matt Baroli

Haven’t used the product yet

k
kevin h
metal prep

stuff works awsome really cleans up metal for paint.

D
Daniel Brass
Works great, watch out for untimely bee stings when carrying Por-15

I used this product to repair some rust issues on my Jeep Wrangler (I know, a Jeep with rust issues, who can believe it?) So... I was carrying the open can out to the Jeep when I was unfortunately stung by a bee, causing me to flinch and really unfortunately for the Por-15 to splash all over my forearms and hands.

The stuff works great on the Jeep and I can attest it adheres very well to flesh. I kind of look like Michael Jackson in reverse. Cheers.

M
Matthew White

Haven't used it yet

Directions: 

Remove loose or flaking rust, paint scale, etc. Surface to be treated should be free of grease, oil, and other foreign substances. Use of POR-15 Cleaner Degreaser is highly recommended. POR-15 Metal Prep works faster at temperatures above 70°F. Apply with brush, roller, spray, or dip rusted metal directly into solution. 

On Bare Or Rusted Metal Surfaces: Keep surface wet for 20 minutes, then rinse thoroughly with water. Remove excess from painted or chrome surfaces as quickly as possible to avoid discoloration. Surface must be bone dry prior to applying POR-15 Rust Preventive Coating. Do not store in metal containers.

* May stain Alloy surfaces. Use Alloy Prep (formerly AP-120 Metal Prep) for Alloys and soft metals like aluminum, and brass when painting with 2k Urethane Clear.