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(1188 ratings)
94% positive over last 12 months
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POR-15 Metal Prep, Metal Etching Rust Neutralizer, Non-flammable and Water-based, 32 Fluid Ounces, 1-quart

4.6 4.6 out of 5 stars 3,437 ratings

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32 Fl Oz (Pack of 1)
Neutralizer

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About this item

  • ✅ POR-15 METAL PREP - Is easy to use and effective. It's formulated to gently etch metal, to create an ideal anchor pattern for coatings, while simultaneously leaving a zinc phosphate coating to insure chemical bonding of paint and steel metal.
  • ✅ PREPARATION IS KEY - After thoroughly degreasing your work piece, apply 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. Metal Prep is Essential to create superior edge corrosion, undercutting resistance & improves welding conductivity
  • ✅ APPLICATION - 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 recommended. POR-15 Metal Prep works faster at temperatures above 70°F. Apply with brush, roller, spray, or dip rusted metal directly into solution.
  • ✅ SAFE & EFFECTIVE - Our water-based formula is non-toxic, non-corrosive is safe to use, and won’t leave behind harmful residues. Our Metal Prep is an inexpensive insurance policy that guarantees perfect adhesion of POR-15 Rust Preventive Coating to any metallic surface every time. Perfect to use on your car, fence, outdoor furniture, & more!
  • ✅ OUR SATISFACTION COMMITMENT – At POR-15 we strive to bring the ultimate in rust prevention. Known for the unbeatable 3-step stop rust system, POR-15 is trusted by DIY & Professionals. We are committed to innovation, quality control, and excellent customer service.
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POR-15 Metal Prep, Metal Etching Rust Neutralizer, Non-flammable and Water-based, 32 Fluid Ounces, 1-quart
POR-15 Metal Prep, Metal Etching Rust Neutralizer, Non-flammable and Water-based, 32 Fluid Ounces, 1-quart
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Price-22% $24.47
List:$31.46
$31.37-19% $64.99
List:$79.99
-26% $7.35
List:$9.99
$54.99$79.41
Delivery
Get it as soon as Sunday, Mar 31
Get it Apr 19 - 23
Get it as soon as Sunday, Mar 31
Get it as soon as Sunday, Mar 31
Get it Apr 2 - 8
Get it Apr 19 - 23
Customer Ratings
Easy to use
4.5
4.2
4.5
4.8
4.7
4.4
Value for money
4.2
4.0
4.1
4.5
4.7
4.4
Adhesion
4.4
4.2
4.7
4.7
4.9
Durability
3.6
4.1
4.2
4.6
4.7
Longevity
3.4
4.7
4.7
Sold By
POR-15
POR-15
EcoClean Solutions
Amazon.com
The Eastwood Company
POR-15
volume
1 quarts
15 fluid ounces
1 gallons
12 fluid ounces
1 quarts
unit count
1
14
128
12
32
24
paint type
Watercolor, Spray, Oil
Spray
Spray
spary
Spray
Urethane
surface suggestion
Metal
Metal
Iron
Metal
Metal
exterior finish
Zinc
Gloss,Metal,Painted
Aluminum
Zinc
specialty
Non Toxic
Long Lasting
Hypoallergenic
Long Lasting
Odor Free
Rust Free

From the brand


From the manufacturer

POR-15 Metal Prep

POR-15 Metal Prep Metal Etching Rust Neutralizer

POR-15 Metal Prep provides the best adhesion for POR-15 Rust Preventive Coating or any other primer 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. 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. POR-15 Metal Prep is not caustic, corrosive, toxic or flammable.

* Formerly Prep & Ready

Metal Prep

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

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 before application. 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 POR-15 Alloy Prep (formerly POR-15 AP-120 Metal Prep) for Alloys and soft metals like aluminum, and brass when coating with 2k Urethane Clear or Clear POR-15 Rust Preventive Coating.

Product Description

POR-15 40204 metal prep - 1 quart. Great for any metal surface. Prep leaves a zinc phosphate coating that will insure chemical bonding of paint.

Product information

Technical Details

Additional Information

Warranty & Support

Amazon.com Return Policy:Amazon.com Voluntary 30-Day Return Guarantee: You can return many items you have purchased within 30 days following delivery of the item to you. Our Voluntary 30-Day Return Guarantee does not affect your legal right of withdrawal in any way. You can find out more about the exceptions and conditions here.
Product Warranty: For warranty information about this product, please click here

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POR-15

POR-15 Metal Prep, Metal Etching Rust Neutralizer, Non-flammable and Water-based, 32 Fluid Ounces, 1-quart


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What's in the box

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    Customer reviews

    4.6 out of 5 stars
    4.6 out of 5
    3,437 global ratings

    Customers say

    Customers like the performance, ease of use, and quality of the auto accessory. For example, they mention it works amazing, it stops the rust completely, and it seals in the ruse. They also appreciate the metal prep, and finish. That said, some disagree on cleanability.

    AI-generated from the text of customer reviews

    169 customers mention157 positive12 negative

    Customers are satisfied with the performance of the auto accessory. They mention that it works well, is easy to apply, and gets results. Some say that it ate through their tank and that it goes a long way. Overall, most are happy with their purchase and recommend it to others.

    "...Follow the instructions and you’ll have the desired results. Effective and well worth the price." Read more

    "...Really good stuff." Read more

    "Easy to apply and gets results!" Read more

    "...my tank was jacked lol it ate through my tank... It works really well follow the directions!!" Read more

    57 customers mention43 positive14 negative

    Customers like the rust-resistant properties of the auto accessory. For example, they say it cleans the metal of rust, seals in the ruse, and looks great years down the road. Some say it works okay on non-rusty parts.

    "...permanent, wear gloves cause it will stain your hands, BUT it seals the rust perfectly. It dries to a hardend surface, not rubbery...." Read more

    "...They worked like a charm. This metal etching base completely removed all the rust in the tank and prepped the surface for the sealer...." Read more

    "...I tried twice, same results. I feel like it works okay on the non rusty parts. Guess I will be sandblasting." Read more

    "...flaking surface rust but now just seven months later the whole front frame is rusting. most "rust converter" paints are frauds and do not work...." Read more

    29 customers mention25 positive4 negative

    Customers find the auto accessory easy to use. They mention it's simple, easy to apply, and painless to prep. Some say that the results are amazing. Overall, most are satisfied with the product's ease of use.

    "Easy to apply and gets results!" Read more

    "easy to use work great clean great" Read more

    "Easy to apply, follow directions. When ready applied coating it laid very smooth with brush." Read more

    "Easy to use when following the directions. This was recommended by Caswell since my tank was not able to be filled with drywall screws and shook...." Read more

    21 customers mention16 positive5 negative

    Customers like the metal prep. They say it works as promised, treats the metal, and binds the rust like a miracle. It's great for use in any metal prior to painting and leaves a zinc phosphate coating to help further protect from rust.

    "...It etched the metal. No sanding or wire brush was required. I left it on 24 hours before painting with Oil based primer. Bonded great." Read more

    "Excellent metal prep for our 50 year old Honda CB350G fuel tank." Read more

    "...It is also great for prepping bare metal for POR-15 paint. I've used it for that too. Makes a nice prep for welding too." Read more

    "Does nothing for aluminum. Worse than no prep at all...." Read more

    16 customers mention16 positive0 negative

    Customers are satisfied with the quality of the auto accessory. They mention it's rock solid, has good quality, and has a nice solid finish. The durability of the paint is excellent, and it has industrial strength. Overall, customers are happy with their purchase and recommend it to others.

    "...wheeling it and brushing this on the entire bed, it made it the perfect condition to take into the shop. I HIGHLY recommend!!" Read more

    "...It helps prep the rust and metal for a nice solid finish that is ready for lubricant...." Read more

    "...The durability of the paint is excellent." Read more

    "...advertised and the POR job I did on my son's rusty Saturn is holding up like a champ...." Read more

    14 customers mention14 positive0 negative

    Customers like the prep. They say it's great for prepping trailers for POR-15 Top Coat, and bare or rusted metal for paint. It also makes a nice prep for welding. Customers also say it helps with applying paint and makes the paint stick well.

    "...I've used it for that too. Makes a nice prep for welding too." Read more

    "...the rust, leaves a zinc coating, etches the metal, and I can paint directly on top of it!..." Read more

    "...This stuff works awesome and does a great job of prepping the metal and cleaning off the "flaky" particle rust dust that you will spend..." Read more

    "This is a great prep product. Not only does it work on the surface rust but also leaves a great protective coating...." Read more

    13 customers mention13 positive0 negative

    Customers are satisfied with the finish of the auto accessory. They mention it maintains a natural finish, has a nice etch, and leaves a great zinc phosphate finish. Some say that it eats away rust in no time and leaves the tank as slick and shiny as a brand new car. Overall, customers are happy with the product's finish and recommend it to others.

    "...Not sure about that. But it definitely changed the appearance of the metal...." Read more

    "...left a great zinc finish, facilitated great weld beads, and i now have peace of mind knowing that my floors are fully protected with this product..." Read more

    "...to tell me that the inside of the tank is now as slick and shiny as a brand new car. I am ordering a 2nd set of 3 chemicals for him now." Read more

    "...can get all those hard to reach places way better and it has a nice black finish that will leave your truck looking gorgeous underneath." Read more

    14 customers mention7 positive7 negative

    Customers are mixed about the cleanability of the product. Some mention that it cleans the metal well, while others say that it leaves a white residue behind.

    "I would recommend this product. Worked well to clean up old gas tank." Read more

    "...off the areas where I applied the etching product and white residue was left over...." Read more

    "...not only freed the insides of the blower fan, but cleaned the electrical contacts completely. The fan still works......" Read more

    "...even after rinsing it off, which is the final step, it left a white residue behind in spots which I was not sure about so I used a rag with some..." Read more

    Amazing product
    5 Stars
    Amazing product
    In the video I watched before buying this the guy said “most people had success with this product.” In this case I am one of those “most people.” I used this to get the rust out of the gas tank of my 1982 motorcycle. The first picture I have in this post was after I rinsed out the tank with hot water, the second was after I used the Metal Prep product. I also used the Cleaner Degreaser product they also sell. I fully recommend this to anyone using it for a gas tank if needed. Full 5 stars
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    Top reviews from the United States

    Reviewed in the United States on February 18, 2024
    Size: 32 Fl Oz (Pack of 1)Style: NeutralizerVerified Purchase
    Customer image
    5.0 out of 5 stars Amazing product
    Reviewed in the United States on February 18, 2024
    In the video I watched before buying this the guy said “most people had success with this product.” In this case I am one of those “most people.” I used this to get the rust out of the gas tank of my 1982 motorcycle. The first picture I have in this post was after I rinsed out the tank with hot water, the second was after I used the Metal Prep product. I also used the Cleaner Degreaser product they also sell. I fully recommend this to anyone using it for a gas tank if needed. Full 5 stars
    Images in this review
    Customer image Customer image
    Customer imageCustomer image
    Reviewed in the United States on January 24, 2024
    Size: 32 Fl Oz (Pack of 1)Style: NeutralizerVerified Purchase
    Reviewed in the United States on April 18, 2023
    Size: 128 Fl Oz (Pack of 1)Style: NeutralizerVerified Purchase
    Customer image
    5.0 out of 5 stars Best stuff for rust!!
    Reviewed in the United States on April 18, 2023
    I'm writing the same review for this and the paint.

    You will not find anything better than this stuff. It's expensive but will deal with your problems. A few tips though.
    I'm a college student fixing a 99 jeep cherokee in the Midwest. Apart from welding a few new panels in I wanted to stop the growth of rust. A lot of the stuff out there is a rubber based paint. Which after a while will allow and hold water in. I looked at options and found this stuff. I bought the metal prep and 1 quart of the paint. I then used brake cleaner to save some cash instead of buying the degreaser and then used a drill/wire brush to remove as much rust as possible. Cleaned the surface again and then put 2-3 coats of the metal prep. Washed and then dried and painted. The paint is permanent, wear gloves cause it will stain your hands, BUT it seals the rust perfectly. It dries to a hardend surface, not rubbery. I have no doubt that this stuff will last the life of the jeep. The second way i reccomend saving money is doing the rust spots only. I mainly used this on the Undercarriage of my jeep and instead of paying $67 a quart I just did the rust spots and painted the rest with bed liner. Bed liner is $20 a quart so it saves some money. I was able to get the entire underside/wheel wells and a few spots inside with the one quart. If you got rust just you gotta get this stuff it will save you big time!
    Images in this review
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    15 people found this helpful
    Report
    Reviewed in the United States on September 7, 2023
    Size: 32 Fl Oz (Pack of 1)Style: NeutralizerVerified Purchase
    Customer image
    4.0 out of 5 stars Buy way more than you think you'll need
    Reviewed in the United States on September 7, 2023
    Decided to work on the back half of my 1973 GMC C2500 pickup (long bed). I bought the POR15 Cleaner Degreaser and used that product first. Not sure what to think about it as it didn't appear to do anything that I hadn't already done with a wire brush set used in my drill. Then used the POR15 etching product. Instructions were very limited so I used the product full strength as I didn't see anywhere to dilute it. I used the 56oz hand pump (see picture) to apply the etching liquid to the frame. One container barely did 1/2 the rear frame section. If you're doing a full frame, diffs, etc, I'd buy 5-6 containers of the etching product, as you're supposed to keep it wet for 20 minutes. I rinsed off the areas where I applied the etching product and white residue was left over. Doubtful this will cause a problem when applying the POR15 rust coating product, but time will tell.
    Images in this review
    Customer image Customer image
    Customer imageCustomer image
    6 people found this helpful
    Report
    Reviewed in the United States on October 25, 2023
    Size: 32 Fl Oz (Pack of 1)Style: NeutralizerVerified Purchase
    2 people found this helpful
    Report
    Reviewed in the United States on July 10, 2023
    Size: 128 Fl Oz (Pack of 1)Style: NeutralizerVerified Purchase
    2 people found this helpful
    Report
    Reviewed in the United States on October 24, 2021
    Size: 32 Fl Oz (Pack of 1)Style: NeutralizerVerified Purchase
    29 people found this helpful
    Report

    Top reviews from other countries

    brent lutz
    5.0 out of 5 stars Nothing
    Reviewed in Canada on February 27, 2024
    Size: 32 Fl Oz (Pack of 1)Style: NeutralizerVerified Purchase
    martyzx11
    5.0 out of 5 stars Metal prep
    Reviewed in Canada on February 4, 2024
    Size: 32 Fl Oz (Pack of 1)Style: NeutralizerVerified Purchase
    Freddy R.
    5.0 out of 5 stars Thanks
    Reviewed in Canada on November 27, 2023
    Size: 32 Fl Oz (Pack of 1)Style: NeutralizerVerified Purchase
    Denis Verrier
    4.0 out of 5 stars Bien
    Reviewed in Canada on January 12, 2024
    Size: 32 Fl Oz (Pack of 1)Style: NeutralizerVerified Purchase
    Guy frenette
    5.0 out of 5 stars Metal prep
    Reviewed in Canada on November 22, 2023
    Size: 32 Fl Oz (Pack of 1)Style: NeutralizerVerified Purchase