Paint & Body Work Custom Painting | Panel Repairs & Replacement

Recommendation for cleaning rust underneath car

Thread Tools
 
Search this Thread
 
Old Feb 3, 2013 | 09:47 PM
  #1  
LS1curlyp's Avatar
Thread Starter
Staging Lane
 
Joined: Dec 2012
Posts: 50
Likes: 0
Default Recommendation for cleaning rust underneath car

I am looking to clean some surface rust on the underneath of my car. I’ve read several forums and see some people have suggested different products, one of them being Simple Green (which they have a plethora of products!).

Here is a list of products other users have used/recommend.

Simple Green Products

Product 1: Simple Green Concentrated Cleaner
Product 2: Crystal Simple Green Industrial Cleaner/Degreaser
Product 3: Extreme Simple Green
Product 4: Foaming Crystal Simple Green
Product List: Simple Green Family of Industrial Products

Gunk

Gunk product


Rust Doctor

Rustdoctor then use POR-15 to coat the underneath of my car and rear differential.

“Is a water based latex paint that allows you to paint over rusty metal and then topcoat with any kind of paint without the need to sand or grind to bare metal. This unique product chemically converts the rusty metal to black magnetite, which is a very hard form of iron oxide. Because magnetite is inert (will not react with moisture and oxygen), it creates a protective layer that keeps the metal from rusting. In addition, a latex primer is left on the surface, allowing for topcoating with any kind of paint. In one simple step, the rust is converted to magnetite and the surface is primed.)”

Extend


Extend Product

“Loctite® Extend Rust Neutralizer is a fast drying, milky white latex coating that is applied to rusted metal to stop rust, protect the surface and act as a primer for the finish coat. It converts rust to a neutral surface ready for painting, creating the ability to paint over rust.”

It seems like the Rust Doctor or Extend would be the way to go. It neutralizes the rust, converts it, and prevents it from rusting again. However, I am new to this and not sure what I should do. Has anyone used any of these products? If not, what do you recommend?

Here is the underneath of my 1998 Bright Green Metallic Trans AM. The first three pictures are before I installed the SLP LM I Exhaust.




Reply




All times are GMT -5. The time now is 09:41 AM.

story-0
6 Gifts Neither Your Dad Nor Grad Will Shove Into the 'Trinket Drawer'

Don't get dad new socks or a grill brush this year.

By Brett Foote | 2026-06-04 18:13:20


VIEW MORE
story-1
Topdon ONE vs. Artidiag 800 BT2: Which is the Diagnostic Tablet For You?

Slideshow: We take a close look at the ONE and Artidiag 800BT2 diagnostic tools from Topdon and the reasons to buy one over the other.

By Pouria Savadkouei | 2026-05-28 11:05:11


VIEW MORE
story-2
Gas Monkey Built a 6-Wheel Ferrari Testarossa With a Corvette LT4 Engine

Slideshow: The controversial Ferrari F6 swaps its original flat-12 for a Corvette Z06-derived LT4 V8 and sends power to four rear wheels through a custom-built drivetrain.

By Verdad Gallardo | 2026-05-26 18:23:54


VIEW MORE
story-3
7 Most Reliable High-Performance Engines GM Has Ever Built

Slideshow:These GM engines didn't just make huge power, they survived abuse, boost, track days, and six-digit mileage with a reputation for refusing to quit.

By Verdad Gallardo | 2026-05-21 16:45:27


VIEW MORE
story-4
Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

Slideshow: This heavily modified 1971 Camaro mixes classic muscle car styling with a fifth-generation Camaro interior and modern LS3 power.

By Verdad Gallardo | 2026-05-12 18:06:42


VIEW MORE
story-5
6 Common C5 Corvette Failures and What's Involved In Repairing Them

Slideshow: From wobbling harmonic balancers to failed EBCMs, these are the issues that define long-term C5 ownership and what repairs typically involve.

By Pouria Savadkouei | 2026-05-07 18:44:57


VIEW MORE
story-6
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

Slideshow: A modern Camaro transformed into a retro icon, this limited-run "Bandit" build blends nostalgia with brute force in a way few revivals manage.

By Verdad Gallardo | 2026-04-21 13:57:02


VIEW MORE
story-7
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

Slideshow: Cadillac didn't just crash the high-performance luxury vehicle party, it showed up loud, supercharged, and occasionally a little unhinged...

By Pouria Savadkouei | 2026-04-16 10:05:15


VIEW MORE
story-8
Top 10 Most Powerful Chevy Trucks Ever Made!

Slideshow: Top ten most powerful Chevy trucks ever made

By | 2026-03-25 09:22:26


VIEW MORE
story-9
Hennessey's New Supercharged Silverado ZR2 Has 700 HP

Slideshow: Hennessey has turned the Silverado ZR2 into a 700-hp off-road monster with supercharged V8 power and a limited production run.

By Verdad Gallardo | 2026-03-24 18:57:52


VIEW MORE