Editing Phosphoric acid as metal pretreatment (section)
Jump to:
navigation
,
search
==Brands of phosphoric acid-based metal pretreatments used for automotive work== ===Ospho=== Ospho is advertised as "a balanced formula of Phosphoric acid, Sodium Dichromate, Surfactants, and Extenders." According to Ospho's manufacturers, as detailed in [http://www.hotrodders.com/forum/ospho-factory-response-173513.html#post1234300 this post]: #Once Ospho has dried, there is no longer any acid on the surface to react with paint. #Ospho is totally neutralized by reaction with both the rust particles and the steel underneath. #Because Ospho is water-based, the water can hide in nooks and crannies, causing adhesion failure of primer For details on Ospho use, see [[Rust removal with Ospho]]. ===Resources=== *[http://www.skybryte.com/OsphoMSDS.html Ospho MSDS] *[http://www.skybryte.com/OsphoTec.html Ospho Technical Data Sheet] ====Application tips==== *A quick, light water rinse with a damp towel or a wax and grease remover will remove any dust-like reaction particles. *Always make sure metal is dry before using ospho or priming. *Sand or scuff before priming then use a wax and grease remover to clean. ===PPG DX579=== PPG DX579 contains a lower concentration of phosphoric acid than Ospho.
|
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