Editing Rust, pitted (section)
Jump to:
navigation
,
search
===Removing the rust in the pits=== First, all visible rust must be removed using one or more of the methods listed below. ====Mechanical removal of pitted rust==== *A spot blaster is useful for this. *Also, the following can be used: metal brush, grinding wheel, die grinder, a wire wheel on a drill. 3M Clean-n-strip discs, Lava wheels. ====Chemical removal of pitted rust==== *Let naval jelly sit on the area, overnight if possible. Cover it with plastic wrap to keep it from drying out. *If it's practical to remove and soak the panel or part, there is also the option of using electrolysis for rust removal or using one of several products that require a rusted part to be completely immersed. * Another alternative is to use phosphoric acid. It is readily available at home centers such as Home Depot under the brand name Phosphoric Plus. It may be brushed on or a part may be soaked in the solution. Heavy pitting will take multiple applications with some wire brushing in between to speed the process. The chemical reaction of the phosphoric acid with iron oxide produces black, water-soluble iron phosphate, which can be scrubbed off. A follow up passivating treatment containing zinc phosphate, such as PPG DX520, can be used to prevent flash rusting. Phosphoric acid rust-removing products may or may not contain zinc phosphate, so read labels and directions carefully.
|
Editing help
(opens in new window)
Personal tools
Log in / create account
Namespaces
Page
Discussion
Variants
Views
Read
Edit
View history
Actions
Search
Navigation
Main Page
Recent changes
Random page
Help
All articles
Start a new article
Hotrodders forum
Categories
Best articles
Body and exterior
Brakes
Cooling
Electrical
Engine
Fasteners
Frame
Garage and shop
General hotrodding
Identification and decoding
Interior
Rearend
Safety
Steering
Suspension
Tires
Tools
Transmission
Troubleshooting
Wheels
Toolbox
What links here
Related changes
Special pages
Terms of Use
Copyright
Privacy Policy
Your Privacy Choices
Manage Consent